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  1. Further information: This unit was purchased in March, perfect conditions. Comes with original packaging and accessories (remote etc.). Upgrading to Naim system hence selling this unit. Local pick up is preferred, can post on buyer’s expense. Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  2. I'm having some trouble with my Yamaha DSP A1 amplifier. It sounds like the right channel is giving a weak or sub-par performance. It's relatively subtle, but seeing as my wife agrees with me it must be true. It sounds as if one of the two mid-range speakers might not be operating, like that side is lacking something. Also, occasionally after turning the system on there will be zero sound coming from the right. After turning off and on this usually resolves itself. However, I've recently started using the amp's headphone socket, and have noticed that if I plug and unplug from the headphone socket a few times this can lead to the sound returning to the right channel. This leads me to believe there is something amiss to do with this part of the amp. However, even after regaining sound from the right speaker it sounds slightly weaker, lacking in clarity, as if one of the right tower's speakers is not working. I am an utter novice, so please forgive me. I've switched cables and attached speakers to the opposite outputs. When attached to opposite outputs the issue follows to the left channel. Any help would be much appreciated, and if there's anywhere else I should ask this question please let me know.
  3. Price reduced from $345 > $295 Further information: Fatman Tube Amp in great condition just a little dusty as it been sitting in the corner since I've replaced most of my speakers to Sonos. Great tube amp with output to speakers. Fatman is a UK audio company. Fatman stats: Power Output 13Wx2 Frequency Response 20Hz – 20KHz (±1.5dB) Harmonic Distortion 0.5% Signal-To-Noise Ratio 86dB Input Impedance 100K Output Impedance 4ohm, 8ohm Valve Type 2 x 6N1(ECC85) 1 x 6E2(EM87) Power Supply AC100~120V/50~60Hz AC220~240V/50~60Hz Dimensions (l-w-h): Amp: 10.2" x 5.7" x 5.1", Dock: 6.1" x 5.1" x 4.8" Weight: 9.5 lbs PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  4. Item: Lyngdorf TDAI-3400 Amplifier Price Range: reasonable market value - more info below Item Condition: Demo or used Extra Info: Got the little brother (TDAI-2170) and looking to give this one a shot to try the more flexible EQ and for some extra grunt and the handy web-interface. Price depends on age, condition, remaining warranty, optional modules and packaging/accessories included. Ideally somewhere between 5k and 7.5k, but shoot me a PM if you got one for sale regardless, happy to consider all (or haggle 😀).
  5. Further information: Near new Topping DX7 Pro DAC Amp in Black. Purchased in March 2020, working in perfect condition with all accessories. See http://www.tpdz.net/productinfo/398244.html for official specs and information Photos:
  6. Further information: Buyer pay shipping (not worth it) Quick sale, moving out in a week Will even include 2x 9v batteries for pickup Photos:
  7. Further information: The Rotel RB-1582 MKII amp (RRP $2799) is in perfect working condition and is pristine in appearance. The unit was purchased from a local dealer in late 2018. My job roles changed since the purchase and I barely have time with my gears since. The unit is extremely well taken care of and was covered with cloth while not in use (I tend to be away from home for weeks!). The amp is barely used for 120 hrs in total. So, make sure you allow more burn-in time. I have all the original boxes, manuals etc. Note: Priority will be given to the buyer of both the Rotel RB-1582 MKII amp AND Rotel RC-1572 preamp (see another ad). Further discounts will be given if buyer purchases both units. Details: Rotel’s largest stereo amplifier at 200 watts per channel provides the massive current to drive the very largest hi-fi systems effortlessly. And like its smaller brother, the RB-1582 MKII has been designed to excel at resolving the subtle details in music as well as supplying the brawn required for extremely dynamic passages. It is able to achieve this difficult dual requirement because of the meticulous attention paid to circuit design and parts selection. The RB-1582 MKII ‘s high-end performance begins with an extremely large toroidal transformer combined with a total of 60,000uF storage capacity in special “slit foil” capacitors to provide completely stable power to the output stage. Slit foil capacitors have the ability to charge and discharge extremely quickly, thereby ensuring signal fidelity during orchestral crescendos or repetitive kick-drum impacts, for example. Both left and right channel construction are laid out in a mono block design (after the toroidal transformer) and all grounding is terminated in a star pattern on a copper grounding plate to ensure low signal to noise. The output stage is a discrete design that consists of 10 high current bipolar transistors per channel. Input options consist of both balanced XLR and unbalanced RCA connectors. The RB-1582 stereo power amplifier is yet another outstanding example of Rotel’s Balanced Design Concept and will form the heart of a very impressive stereo or home theater system for years to come. Specifications: Power Configurations: 2 x 200 watts (20Hz-20kHz, <0.03%, 8 Ohms) Watts/Channel: 200 watts, all channels driven, 8 ohm load, 20-20kHz THD (20-20,000Hz) 8 Ohms, all channels driven: < 0.03% IM Distortion: < 0.03% Damping Factor (8 Ohms): 1000 Input Sensitivity / Impedance: 1.5V / 32kOhms Frequency Response (+/-1dB): 15-100kHz (+/-1dB) S/N Ratio (IHF A): 116dB Power Consumption: 550 watts Dimensions (W x H x D): 431 x 140 x 406 mm Front Panel Height: 3U (5.25”) Shipping Weight: 18.5 Kg Finish: Silver Photos:
  8. After 7 years my faithful Audio GD NFB 15.32 is dying on me, so I'm looking for a new solution. My use case is Windows PC -> DAC/Amp -> Headphones and powered speakers I primarily use my speakers over my headphones, probably about a 85/15 split. For what it's worth, speakers are JBL 305p MkII and headphones are Sennheiser HD 58X but both of these are subject to future upgrade, so I don't mind going with something that might seem 'overkill' for this tier of hardware. Features / things that I'm ideally after are; Great sound quality / specs for the price Pre-amp control for my speakers Being able to switch between headphone and pre-amp output without unplugging headphones (I'm used to having this with the Audio GD for years now, but I could adjust to not having that feature. I'd just rather not have to 😄) Ideally have multiple inputs (USB, optical, coaxial) Nice build quality Balanced would be kinda cool but really, really not necessary The main unit I've been eyeing is the JDS Labs Element II combo, $400US. I own the atom amp in my turntable set-up so I have the utmost confidence in the sound quality of the unit, and I think the design is very, very sleek and would look beautiful on my desk. They also have a stellar reputation for their post sales support. The only major misgiving I have of it is that it only has USB input. Given that I'm only/primarily using it with my computer, that theoretically shouldn't be a problem, but it's not implausible that I might want to plug a game console into it along with my PC at some point in the future. I think it's just a bit of a bummer that it's single input for the DAC, it's always nice to have the option for other inputs. There is the option to buy the separate dac and amp units instead of the combo unit, but that's an extra $150US, which is too much. Another unit I've seen is the Monoprice Monolith THX combo unit, $499US. It's $100 more than the Element II, but, it has multiple inputs for the DAC and it even has a balanced headphone amp! I do find it annoying that it doesn't have balanced outputs for my speakers, though, which would be cool and seems like a missed opportunity tbh. Only 1 year warranty as well, which doesn't inspire a great deal of confidence at this price. At this point I'm just shopping around, but I'd appreciate any pointers or impressions. Thanks in advance!
  9. Further information: Purchased 1 year ago from Addicted to Audio. 1st and only owner. Best way to describe the condition is I can pack it back up in the original box and and sell it as brand new, it's that perfect. The photos can be deceiving but it's just the dust that makes it appear as dirty or with marks. It has been paired with a Schiit Yggdrasil Amplifier. At this price point, I am yet to find a better headphone amplifier, and believe me, I've tried lots of them. It comes with all the original paperwork, the original box and the original power cable which is still brand new (I used another power cable). This is an incredible headphone amplifier and I can assure you, you will not be disappointed, not to mention that this amp is very rarely listed privately and for a good price. I am open to reasonable offers but please, no low balls. If any more information is required please send me a message, I usually respond very quickly. Thank you. Photos:
  10. I am not sure this should be here and for my first real post it may be a bit long but I hope to learn quickly how to use the forum. I am currently looking at different options for isolation, and am getting a bit overwhelmed with the number of options and the extent of things I don't know but have set on a journey that I believe you can also help shape and that I am laying down below. I saw that (industrial) anti vibration pads and a massive wooden or stone platform is a common recommendation here on SNA (for speakers and TT) , but I'm trying to focus on solutions with lower visual footprint for now (and a platform as a solution would also mean I need to keep the spikes under my speaker (bottom ported) which I fear would have a significant impact on the height of the tweeter) I settled on isolation and not coupling after 1) experiencing a nice improvement in clarity and timber of instruments after installing Herbie's audio decoupling gliders below my speaker spikes (WB Vector) 2) noticing (after that) that I could hear the bass through the sofa while my other ear was blocked. And this with the speakers playing at night at background noise level (55db slow c-weighted). My standard listening level are around 60dB with peak 70db. As I browsed online through the different type of isolation device, I could notice many different designs which I decided to try testing out a bit. In the back of my mind I'd love to be able after that to understand what it is best for me in my system to isolate (horizontal vibrations, vertical one or both) and I'll take any clue from you guys if you don't mind sharing. But until I get there, I have to rely on my testing in my system While admitedly my listening levels are nowhere near crazy and I should be able to leave with what I have, I am still keen to proceed in isolating my speakers: - if only to prevent any potential complaint from my neighbours. - to get some even better sound - to decrease the extent of the filtering I run in the Hqplayer convolution engine so as to regain 3 to 8db of dynamics in the system To give some context, I am using a simple system with - a mac mini running roon+hqplayer on audiolinux - matrix x-spdif 2 to convert USB to AES/EBU - soulution 330 integrated with Dac - WB Vector on spikes Positioning of the speaker is not a variable (except toe in) and listening position can be adjusted a bit Digital gear is all stuck in the TV console (a few vertical vibration resonance modes) (I haven't managed yet to understand how to insert images in-line from my phone so they may well be at the very end of the post.) So I set up to gather some relatively inexpensive isolation footers (images below) to compare different designs... on my amp (before I spend for the speakers). I have so far only focused on footers, big heavy platforms being a difficult topic to bring up with my better half and have started testing: - some ceraball type of aluminium footers (made in China, not the real ones) - stainless steel slim 3 ball bearing footer (with balls almost totally "locked" in dimples barely bigger their size. - ebony/crystal 3 ball bearing footer (here the dimple for the balls are a bit bigger than the balls and the central piece of the footer is a simple rod, giving more freedom to the 2 pieces of the footer as compared to the one above - chinese magnetic footers with ball bearing on top (similar to the above stainless steel one) Coming later for testing: - herbie audio lab tenderfeet - ingress engineering rollerblock - townshend audio isolation platform I have so far reached the best results with 4 magnetic footers under the feet of the amp but am wondering whether I am in an optimal situation: - how to determine whether they're loaded enough (they're rated up to 40 kg but the top is barely sinking into the main body and the amp is barely moving when pushed either sideways or vertically (amp weight is between 30 and 32 kg I'd say) - how to determine the center of gravity of the amp to try with only 3 footers (I can always adjust the height of these footers but guess it's best to have all of them loaded equally) - what's the lifespan of a magnetic footer (I wouldn't want one of the magnet to suddenly fail and prop the amp suddenly down) Now to how does it sound: The magnetivc footers bring a more natural tone, a little more laid back feeling with still good dynamics, a lot of smoothness yet no emphasis on bas or mid bass, a more open highs, more detail. Comparatively, in my system: - amp on the ebony footers would rate second with more warmth and a bigger soundstage - amp on the ground would rate next with a natural and neutral delivery, more detail popping than the ebony footers - the stainless steel ball bearings would follow then with a less smooth delivery than the ebony footers and an overemphasised bass/medium bass but a bit more detail. - Finaly my chinese ceraball delivers the most detail (except for the magnetic footers) but everything is metallic, soundstage is deconstructed, everything's extremely gritty, probably better with warmer or slower systems My next step will then to be to compare the magnetic footers with the newcomers before I try to assess whether I want to use the same type of footers for the speakers (with the added need to make sure it's safe in a baby friendly environment) As you can see, there's still a lot to try and the process is not necessarily the most coherent, so I'll welcome your thoughts on what I could/should try. Also as you can see my journey so far has been mostly subjective. I tried to measure the impact of each footer in term of vibrations using a vibration app on my phone, but it lacks precision and none of the footers seem to produce so far a profile different from the floor itself (main resonance maybe at 8 hz, background noise of about 0.03m/s2 on each axis) I have to make REW work on my headless Linux machine running HQP, but until then I "rely" on the seismic app on my phone (not really useful) . With that I can just tell that my TV console with all the digital gear resonates like crazy when fighter jets rush over my head (but then I can't hear the music, so not such a big deal) If anyone has experience with different types of footers, subjective or measured, I'll welcome your inputs and I'll keep you posted when new findings come up PS: my most listened to tracks right now are nursery rhymes as I am looking for various (and listenable) baby approved songs in Chinese, French and English, so testing will take a long time I fear for lack of proper available time. Good news is that I'll have that time to read your comments.
  11. Further information: First owner, rarely used. Buyer pay shipping. Would sell my Q5 soon, will give a discounted bundle price. Message me if interested. Photos:
  12. Further information: Units have been stored at my daughter's place in Melbourne and unused for some years. They do power up but have not been tested as there are no speakers in the house to check. I am happy for some one interested to pick the units up and audition at their home prior to payment & if not working or not what you want just please return them. Would consider swapping for a decent pair of speaker stands, in black & preferably Dynaudio in exchange. Apologies for the average photos & dust. Photos: Advertisements without photos of the actual item will not be approved.
  13. Further information:This is a lovely detailed Pre and has installed 4 x Genalex Gold lion 12AX7 and 4 x GE JAN 12AT7WC valves. I purchased this from another SNA'er approx 2 years ago.It hasn't missed a beat. It has a built in MC/MM switch as well as a hi/low input impedance switch for the phono stage . Also a -10db Attenuation switch at the rear. Its built like a tank and has a mirror finish front face plate.Comes with a very well built alloy remote that controls volume and separate components,standby and mute. The remote has been in a plastic sleeve since Ive owned it. I have the original boxes and manual that came with the pre. I will post but preference to local buyer will apply. Some reviews below to wet the appetite. Cheers craka https://www.tnt-audio.com/ampli/doge8_preamp_e.html https://www.head-fi.org/threads/review-doge-model-8-tube-remote-controlled-stereo-preamplifier-phono-stage.495427/ Photos: PLEASE READ If you are advertising multiple items, you must post one bulk price only, or post seperate ads for each item If you include any reference to pricing whatsoever in this section (excluding RRP), your ad will not be approved If you don't include photographs of the actual item being sold, your ad will not be approved
  14. Hi guys, I would really appreciate any guidance. I have front right/left speakers which are 6ohm 250w (nominal) central, rear left and rear right are 8ohm 150w (nominal) My amp is at the moment struggling to push all those speakers so i was wanting to upgrade. budget wise i think up to about 1k would be something for a 5 channel (just guessing here), if more how much more would be needed ? would there be one the would be HDCP 2.2-compliant ? if some that have atmos capability so i can buy some speakers and add in the future would be great. so would be 5.1.2 i'm guessing here? would a 7.1.2/7.2.4 be better ? havent seen a lot of bluray that comes with 7channel capability like that. the 7 i see usually are counting the atmos speakers. Thanks in advance for reading and for any suggestions that comes my way. Current Setup Receiver: Yamaha HTR-3066 Front: NHT C4 Centre: Gale 20 Rear: Axis LS28 Subwoofer: Sound Dynamics THS-10
  15. So, here we are again with the third thread (representing the third listening room) since this obsession began back in mid 2010 (or possibly early 2011, I'd need a good psychologist to be sure). Pics of the new listening room will arrive in good time, a new camera is on the way, as will pics of the first amp to grace the new room, until then I'm afraid I'll just have to copy and paste from the good old internet. This is Darren69's Peachtree Nova, the older model with the mosfet modules (prior to the class D modules and the power increase). It is listed in the manual as 80wpc into 6 Ohms so, in my mind, it is probably about 60wpc into 8 Ohms. It also has the option of a tube preamp stage (that can be switched on and off via the remote) and a built in 24/96 DAC so it scores very well in the value for money stakes. As I've been discovering over the last few weeks it is a very easy amp to like, that built in DAC has been in use for all my tv and movie viewing and has done a sterling job. It must be well integrated with the preamp stage because I have been unable to pick the difference between it and the Halcro's built in DAC, so just because it's rated at a 'crappy' 24/96 doesn't mean that it doesn't sound good. I'm also a fan of the Nova's look, that wood veneer looks very cool and the fact that it's curved somehow makes it work even better. IMO the veneer on the new PS Audio Sprout looks very "80's station wagon fake" by comparison. For those keeping track this is Integrated amp number #62 (at least, I'm pretty sure it is, I actually thought I was up to #63 at one stage... oh well, somewhere in the low 60's, so let's just call it #62 and leave it at that). The Peachtree was fed from a Halcro EC800 cd player via Aurealis R1 interconnects to the Nova and then through Redgum Expressive Line speaker cable to my Lenehan/ETI S2R speakers. And now that the hardware stuff is out of the way let's get down to the important stuff. Highs: Open, airy and spacious and sort of 'happy', xylophone and triangle sound a little bit sweet and a little bit luscious without going far enough to be called rich. I love the top end of the Nova, no glare, no hardness, never harsh or grainy. I've given it a 7.5. Mids: Well separated, natural and pleasingly rhythmic, light acoustic music is beautifully rendered as is jazz and opera (even though I don't usually go there). The mids and highs are given center stage and the bass is generally kept under tight control and used to back hem up and reinforce them. Vocals are also very good, but I'm getting ahead of myself there. 7.5 Bass: Well controlled and forced into second place behind the mids and highs, excellent control and presence but not enough for a bass head. It doesn't go as deep as it could but I believe this is deliberate as if it did then it would likely interfere with the treble. So, I'm giving it an 8.0 for quality and a 6.5 for amount and depth, so that averages at 7.25. It could use a little more impact as well but again that would cause issues for the top end. Vocals: Natural and just a little breathy and rich and just a bit sweetly relaxed, an 8.0 for both male and female vocals. An excellent vocal performance, very enjoyable. Soundstaging is hard to judge, it took me several months to get used to the new room the last time so I imagine it will take quite a while this time as well. It did seem to be pretty capable, it does the job and doesn't do anything wrong so I'll give it the benefit of any doubt with a 7.0 Overall performance Integration: The treble is where it's at with the Peachtree Nova, the bass is good too but the treble really shines. The only thing it is lacking is a little impact and dynamicism but I suspect that is deliberate, you wouldn't want those to get in the way of the vocals or the rest of the mid range. An excellent amp for slower styles and still a good one for rock. A very easy amp to live with. Ability to Emote: With slower styles, folkish rock and ballads it scores 7.5 but it drops to a flat 7.0 on harder tracks so I'll average that to a 7.25. Electric Guitar Test: As with many amps that are very well controlled it could not score above a 7.0, it just isn't edgy or rebellious enough. 80's Rock Test: Again good, 7.0 but not great, as with the electric guitar test it does well enough but it just doesn't have the right personality to fit well with 80's rock. And a few random observations: The top end has a few characteristics that remind me of the Burson PI-160, it doesn't sound the same but it does have similar strengths with those nice airy highs. The mid range has maybe half of the rhythmic energy of the NAKSA 80, it sounds nice but it isn't nearly as addictive as the NAKSA was. The Nova was never forward in its presentation and not generally recessed either, it was slightly withdrawn on occasion. Considering the Nova sounds this good and has the added extras of an inbuilt DAC and a remote control I'd have to call it excellent value for money. And I'll add a few of my own pics in midweek. Edit: Pics added.
  16. I'm looking to get some good headphones and a headphone amp to connect them to. I could just plug headphones into my Yamaha R-N602, however I want to explore and hear the differences in various set-ups. Also my Kefs don't have the bass for a lot of my 90s and 00s music I'm finding. Trouble is I have no idea where to begin or what to look for. My local hifi are pointing me at a second hand $450 Musical Fidelity X-Cans headphone amplifier, but I'm not sure if that's the right brand and device to go for. Not to mention, would still need some headphones to go with it. Budget is in the $1-2k range.
  17. Further information: Marantz PM-KI Ruby Ken Ishiwata Signature Reference Integrated Amplifier in GOLD This is one set Brand New Marantz PM-KI Ruby Ken Ishiwata Signature Reference Integrated Amplifier in Gold Panel. MADE IN JAPAN in 230V. Marantz PM-KI Ruby Ken Ishiwata Signature Reference Integrated Amplifier Marantz has been designing and making amplifiers for more than 65 years, and for 40 of those the products have reflected expertise of Ken Ishiwata. Now, to mark his four decades with the company, the PM-KI Ruby amplifier has been developed and tuned by a highly experienced engineering team led by KI himself. . Features a fully discrete two-stage design with separate power supplies for the pre-amplifier and power amp — plus, a moving coil/moving magnet phono stage complete with Marantz Musical Premium Phono EQ circuit and Marantz HDAM technology for signal purity and exceptional audio quality. PM-KI Ruby is built on a vibration-resistant double layer chassis with thick aluminum panes for rigidity and features a laser-engraved Ken Ishiwata signature to commemorate his legacy. Key Features Engineered and extensively tuned legendary Marantz sound master Ken Ishiwata and his team, drawing on more than 65 years of Marantz amplifier design knowledge Marantz high-resolution preamplifier stage with proprietary HDAM technology Switching power amplifier design derived from flagship PM-10 amplifier Generous output: 100W 100W (into 8ohm), 200W 200W (4ohm) Fully-discrete, two-stage design for signal purity, with separate power supplies for preamp and power amplifier sections to reduce interference Toroidal transformer dedicated to preamp for clarity and powerful sound Current feedback design with newly-developed wide-range circuitry HDAM® SA3 circuitry for clean signal and optimal dynamics MM/MC Phono input with new discrete Marantz Musical Premium Phono EQ circuit Thick nickel-plated copper independent input terminals for CD and Phono, plus Marantz-original high-quality/high-purity copper-plated speaker terminals Linear volume control with new electric volume system High-quality construction with double-layer chassis, 5mm thick aluminum top lid, solid aluminum front and copper-plated chassis High-grade, carefully selected audio parts: ultra-low leak current Schottky diodes, low noise complementary transistors, high-grade resistors, newly developed custom electrolytic capacitors, audio grade film capacitors and mica capacitors. Laser-engraved Ken Ishiwata signature and Ruby motif, marking Ishiwata’s 40-year Marantz legacy Celebrating 40 Years of Passion Designed to celebrate the 40-year anniversary of legendary Marantz sound master, Ken Ishiwata, PM-KI Ruby features pinnacle performance that’s synonymous with Marantz excellence. Complete with thoughtful engineering, painstaking tuning and extensive listening sessions, PM-KI Ruby achieves the elevated output worthy of its name. Elegantly shows Ishiwata’s laser-engraved signature to commemorate the design and heightened listening experience that honors the decades-long partnership between him and Marantz. Extensive Sound Tuning Led by Ken Ishiwata’s extensive, meticulous approach to tuning, the larger Marantz engineering team applied more than 65 years of experience and HiFi knowledge to create PM-KI Ruby, resulting in a final product that is a testament to Ken Ishiwata and the Marantz legacy. Marantz HDAM Technology Marantz developed its own discrete circuit boards called Hyper-Dynamic Amplifier Modules, or HDAMs, to replace the chip-based amps used elsewhere. Using discrete surface mount components with short mirror-image left and right signal paths, HDAMs outperform the regular integrated Op-amps dramatically in Slew Rate and noise level. The result is much more dynamic, accurate and detailed sound. Over the years, Marantz has developed different HDAMs to fit the particular requirements of players and amplifiers. The PM-KI Ruby uses the latest high-grade SA3 version. Combined with optimized circuit design layout and carefully selected components, the PM-KI Ruby provides exceptional sound quality and performance. Marantz Musical Premium Phono EQ Designed to deliver optimal sound quality by simplifying the signal path, the Marantz Musical Premium Phono EQ stage in the PM-KI-Ruby amplifier can be used with both moving magnet and low-output moving coil cartridges, thanks to a built-in MC head amplifier. Distortion is reduced by using two-stage amplification in the phono stage, and Marantz HDAMs are combined with JFETs (junction gate field effect transistors) in the input stage, giving high input impedance. The exclusion of coupling capacitors further simplifies the design, reducing signal distortion and enhances signal purity. High Quality Volume Control Newly developed electric volume control uses the latest volume control IC to realize better channel separation, dynamic range and distortion-reduction, while retaining the operational feel of an analog volume control device. The amplifier employs new Marantz-designed electric volume control for high linearity and best-in-class channel separation. Current Feedback Amplifier Current Feedback amplification is a well-known, Marantz-original circuit technology, thoughtfully designed to match the requirements of Super Audio hi-res music for wide-bandwidth, high-speed reproduction. The impedance at the Current Feedback point is limited, generating a very low phase shift. Marantz Current Feedback amplifiers reduce the need for phase compensation by minimizing Negative Feedback (NFB). This simplifies the signal path and results in a high through-rate, excellent transient response and superb sonic transparency across the full bandwidth. Unlike conventional Voltage Feedback topology, Current Feedback also makes the power amplifier insensitive to difficult loudspeaker loads. Balanced Power Amplification Drawing on design elements of the PM-10, the PM-KI Ruby is built to leverage enhancements, maintain the purest possible sound and support the power needed to drive the most demanding speakers. The amplifier output stage of the PM-KI Ruby allows a large power output, delivering 2x100W into an 8ohm load, and easily copes with high-impedance speakers thanks to a 2x200W output into 4ohms. The amplifier module connects directly to the rear panel PCB on the PM-KI Ruby to maintain signal purity and sound stability. Pure Analog Design The purely analog design of the PM-KI Ruby contributes to its noise-reduction structure and clean build. Rather than build the DAC into the amplifier, which would add noise within the chassis, Marantz built the PM-KI Ruby without one and then implemented the DAC in the SA-KI Ruby Super Audio CD Player. This eliminated interference with the delicate analog signals passing through the amp, maintaining an analog environment that’s as pure and clean as possible. Carefully Selected Components Marantz has a steadfast reputation for choosing the best-possible components for its Premium Series products. The Marantz alternative to the “amplifier on a chip” IC components, the HDAM, is a miniature amplifier module built entirely of discrete components. Marantz engineers selected and optimized the HDAM through extensive listening in dedicated Marantz facilities in Europe and Japan. Extensive, painstaking and meticulous tuning has long been the secret of exquisite-sounding Marantz amplifiers. During the development stage, every part is carefully selected, tested and validated by Marantz audio engineers to ensure audio perfection every time you listen. Multiple Analog Inputs and Outputs In addition to phono and CD analog inputs, the PM-KI Ruby features two line-level inputs and two pairs of recorder input/output jacks that enable the connection of multiple sources and recorders. Use the PM-KI Ruby as a standalone stereo power amplifier for additional system configuration versatility with the included power amp input, or connect the PM-KI Ruby to an external power amplifier via the stereo pre-amp outputs.
  18. Further information: This AMP was modified according to Richard McDonald by myself the year before last year when I had time playing with things. I think the mods result is very similar to the famous Hugh Dean Aksa 55, which, without wonder, was a product by Richard and Hugh as you can read the story here. http://www.aesmelbourne.org.au/wp-content/media/THE AKSA STORY.pdf The modified circuit shares high similarity with AKSA circuit, which is said to be the most tubey... Only difference is that A2760 is much better looking amp than a original AKSA 55 as you can see from the picture . Aksa 55 amps don't have speaker protection circuits and kindof dual mono transformer either. And also, I used fancier capacitors such as metal films and Nichicon Muse series, etc. Anyway, I used it to drive my Yamaha NS1000M and did look anywhere else. I actually had two of them, with one added remote volume control, source select and even a phono stage as the retired preamp power supply is actual very good for addon things like those. This one has been my in my video shelf as AV amp, but now I have started to try surround system. These is also a VSPS, very simple phono stage, designed by RJM Audio to come with it or the next owner to play with it. Photos: Advertisements without photos of the actual item will not be approved.
  19. Hello, I just upgraded my speakers investing in a pair of KEF LS50. My source is digital only (Spotify, Idagio and my FLAC+MP3 files). Currently, I power my speakers with a Rega Brio 3. As a stremer/DAC I use the the Allo miniBOSS hooked to a Raspberry Pi Zero running Volumio. From the Volumio app I play FLAC and MP3 files from my NAS, I play from Spotify with Spotify Connect and from Idagio with AirPlay (both supported by Volumio). Now I would like to upgrade the amplifier but maybe also the streaming/DAC solution with a super integrated. Given a budget of about $1,500 what would you suggest? 1. Invest everything in an integrated w/ streamer (e.g. the POWERNODE 2i) and save money...? 2. Investing in a integrated without streamer, keeping my Allo miniBOSS. 3. Investing in a power amplifier (e.g. 2nd hand Schiit Vidar?) + preamp (maybe a preamp DAC?) Thanks!
  20. Further information: This C500 from Audio-GD is a dual mono class-A parallel amplifier. It is rated at 250W@8ohm per channel. The build, as always from Audio-GD, is exceptional. It contains only audiophile grade components, including DALE resistors, WIMA caps, custom order NOVER (UK brand) caps, all audiophile grade input/output sockets and gold IEC sockets. The chassis is also very impressive with heavy heat sink. Input sockets: RCA, XRL, CAST The build is reflected in its weight. The shipping weight is 39kg in a big box 48CMx44CMx19CM. I still have the original box. As far as sound is concerned. Audio-GD claimed that it is “very neutral and neuter, truly delivers the sound of source and doesn't add any colour”. Personally, having used it for some 8 years, I found it very similar to my age old Audiolab 8000C/P with the exception that the C500 has a slight edge in imaging, bass and of course sheer power. This amp is discontinued from current production. But its design is still very much alive in its current line of amplifiers. The one closest to this amp is the Master-10 which retails for US$2180 excluding shipping. The two even look the same externally. The amp also comes with a remote for channel and volume control. This is very useful. It negates the need to get up from your seat and change it at the amplifier. BONUS: A China-made power cable and a pair of speaker cables The power cable has US style plug. The original spec can be found here: http://www.audio-gd.com/Pro/amp/C500/C500EN.htm The Master-10 here: http://www.audio-gd.com/Master/Master102019/Master-102019EN.htm Photos: Advertisements without photos of the actual item will not be approved.
  21. Further information: I bought this IOTAVX SA3 about 12 months ago with an intention to do a write up on it but I haven't managed to find the time yet and it looks like I'm not likely to in the near future so I'm putting it up for sale. It's a nice amp to listen to, reminds me of the 800 series Rotel amps which were warmer and easier on the ears than their newer 1000 series models. The DAC is quite decent too and well matched sonically to the amps abilities. I also bought a pair of PAIYON P4 speakers around the same time and I've found that they match well with the IOTA. I've taken the pics of the items together but will list them separately (which seems easier to do under this new FS layout). Would make a good starter amp for a budding audiophile or an amp for a second/office/workshop system, particularly if you add on the Aircast remote (which is not included as I didn't buy one). Official website below. https://www.iotaenterprises.co.uk/collections/amplifier/products/iotavx-audiophile-stereo-amplifier-sa3 Postage in the original box will not be a problem as this puppy is small enough to be sent by Austpost. Photos:
  22. Further information: This is in perfect condition. No longer used, so I'd rather see it go to someone that could use it instead of it just sitting around. Donation will be made to SN once sold Photos:
  23. Further information: They have won a HiFi Pig award. https://hifipig.com/graham-slee-proprius-mono-power-amps/ Item Measurement Power output (rms) measured 26 Watts into 8 Ohms; 45.5 Watts into 4 Ohms (ref 1% THD+N at 1kHz) Power bandwidth at rated power into 8 Ohms 10Hz - 47kHz (-3dB), 20Hz - 25kHz (-1dB) Power bandwidth at rated power into 4 Ohms 12Hz - 40kHz (-3dB) Total harmonic distortion and noise at 8 Ohms 100Hz: 0.043%; 1kHz: 0.047%; 5kHz: 0.061%; 10kHz: 0.085%; 20kHz: 0.125% Total harmonic distortion and noise at 4 Ohms 100Hz: 0.066%; 1kHz: 0.071%; 5kHz: 0.094%; 10kHz: 0.129%; 20kHz: 0.181% Signal to noise ratio in dB "A-weighted": 87dB; 22Hz-22kHz "Q-pk": 80dB Bias type Class Ab; Bias current: 60mA (approx.) Input sensitivity for rated output 575mV rms Short circuit protection Fuse and power supply shut-down (short circuits should be avoided to prevent component stresses) Fuse F2A 5mm x 20mm (glass "quick-blow" fuse rated at 2A) Power supply 48V DC, 120 Watt - self adjusting to AC mains 100V - 240V, 47 - 63 Hz; IEC cord supplied Size (approx.) Amp W105 x H55 x D205 mm; Power supply W65 H40 D170 mm Photos: Advertisements without photos of the actual item will not be approved.
  24. Mint condition, used infrequently and battery always kept charged. Legendary performance. Comes with original box and accessories including charger, USB cable, booklet, rubber strap bands for stacking with other devices, international power adaptors. Upgraded to Mullard 6021 and Sonotube tubes (great improvement over stock tubes). At the front: 3.5mm single ended headphone output; 5 LED sample rate indicator for DSD64 (white), 88.2kHz/96kHz (blue), 176.4kHz/192kHz (green) and 44.1/48kHz (red); a volume potentiometer (also serves as on/off switch); power LED indicator; high and low gain switch and 2.5mm balanced headphone output. At the rear: 3.5mm fixed 2Vrms analog output signal (straight from DAC); power/charging connection; micro USB digital input; input switch allowing you to choose from digital or analog input sources; a 2.5mm balanced input; and a 3.5mm single ended input. Dimensions: 145mm x 25mm x 82mm / 5.75″ x 1″ x 3.25″ RMS per channel, both channels driven: Single Ended: 80mW into 32 ohms 95mW into 50 ohms 75mW into 150 ohms 60mW into 300 ohms Balanced: 125mW into 32 ohms 145mW into 50 ohms 110mW into 150 ohms 95mW into 300 ohms Input impedance SE: 10k Input impedance BAL: 50k Output impedance SE and BAL: < 1 Ohm Photos:
  25. Item: HiFi stereo system Location: Melbourne 3183 Price: 1200 Item Condition: very good Reason for selling: too many stereo systems Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Carefully selected Hi-Fi stereo system. All in good condition and working order. Separated sale: 1. ROTEL RA-980BX Integrated Amplifier $390 The amp was checked and serviced recently. It has OP amp sockets, DIYer could change the OP amps to get different sound. Open the the top cover and then change the OP-Amp you like. There are three pairs of Ops: original AD712 (vintage sift sound, JRC4558 (modern more clean and detailed sound) and LM4562 (bit more detaied). Currently installed LM4562. Many other OP-Amp suits for this amp.. Power output: 100 watts per channel into 8Ω (stereo) Total harmonic distortion: 0.03% Dimensions: 440 x 121 x 347mm Weight: 10.1kg https://www.hifiengine.com/manual_library/rotel/ra-980.shtml Example: 2. Speakers: Ascension Woodfox Ribbon 822SRTL Bookshelf Speakers. $890 Dimentions: 500 H, 270mm W and 315mm Depth. Weight is approximately 18kg each. High quality woofer using an Papyrus cone, ribbon tweeter, Rose Mahogany Veneer. Two years old. Power 120W 8 ohms Sensitivity 91db 3. Sold. Subwoofer: Infinity Primus PS-8 $170 See spec attached Photos: Advertisements without photos of the actual item will not be approved.
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