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  1. Hi All New to this forum, so be gentle. What is your 2 cents on Dynaudio Audience 70 powered by Elektra Reference 2? Since there isn't much references out on the net regarding Elektra Audio or any of their products. Just information on forums. For such a highly regarded product in Aus, I find it strange. So, pending a seller outcome I hope to have the Elektra Ref 2 and pair with my Dyns. As you probably be aware, Dyns needs lots of juice (amperage) to perform at their best. When I first heard the 70, it was driven by a pair of mono Cyrus amps, the mids were just exquisite and sweet sweet highs. Till recently the Dyns were driven by Nakamichi AVR with so so return in sonic quality. Now, the misses allowed me to upgrade to a Denon AVR 4520, so I am using the pre-outs to the Elektra. The rest of the surround are Dyns centre and DM 2/6. But it lacks dynamic, highs just harsh when driven hard and overall lacking what I would term "authoritative" control. All my previous research points to Parasound A21 (which I missed out on a recent sell here). So I am taking a pun that the Elektra is up to the task. My main requirement are mainly two channel audio and weekend 5.1 with the misses. Sources are Pioneer transport and Qnap TS-470 pro via HDMI using FLAC codec. MoreBeer
  2. Recently came across this Beast recently for a bargain..... I think. I was just after peoples thoughts, experiences and opinions with Nakamichi products (In particularity this one), Rather than the tape decks we usually associate the name with. I believe this is a 80's / 90's product and it hasn't been used for about 7 years until yesterday. I have never bothered thinking about 'Caps Replacement jobs etc' on my other vintage gear. But considering the age and that this particular amp might be of some status and value, Would it be worth me spending some hard earned on a freshen up ? If anyone knows anything about the amp, please share. Nakamich PA-7II "Stasis" Inherently Stable/Uniform Amplifier 225+225W Made in Japan. Approx 30KG. Also have the CA-5II.
  3. I have just ordered a $32 100W Class D stereo power module to build into a power amp. I usually build SE and UL tube power amps so a big change. Just wondering if others have built a Class D amp and their comments.
  4. One Silver Exposure Classic 28 power amp rated at 70wpc into 8 Ohms. Item: Exposure Classic 28 Power Amp (in sliver) Location: Bowen Price: $1200 (including postage to anywhere in Australia) Item Condition: Excellent, perhaps 200 hours of operation. Reason for selling: A little too warm for my liking. Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Retailed for about $5K when new. Check out http://www.exposurehifi.com/classics.html for more info. I also have a Classic 21 preamp available (in black) for $750 (including postage to anywhere in Oz) Pictures: Classic pre and power. And with some friends in my big comparo a while back. I could have sworn I had an internal pic as well but it appears I don't . Oh well, additional pics by request if anyone really wants to see the innards. Edit: Almost forgot, this amp does not like high capacitance speaker cables, so braided cat 5 cables, ribbontek (or ribbonflex) or gertz are out of the question! I've tried the first two and I've included the third by reputation.
  5. Item: One Burson PRE-160 and PWR-160 component system. Location: Bowen, Nth Qld. Price: $900 each (including postage to the eastern states, extra $20 to WA and TAS) or $1700 for the pair. Item Condition: Preamp is excellent, power amp is almost excellent (the aluminium finish on the power amp is not quite as nice as the finish on the preamp, not due to anything except the finish from the factory, the preamp is a later model, which happened to have a nicer finish, than the power amp which is an earlier model) The power amp has been modified internally so it can no longer be used in its "valve booster" role. Reason for selling: Been eyeing off an Audio GD Precision 2. Payment Method: Pickup - Cash, Paypal, Direct Deposit Extra Info: Have original boxes and packaging for both but only the manual for the preamp. Pictures: Please note that the Rotel in the middle was only on loan and is not part of the sale. And just in case someone wanted a 'lid lifted' shot.
  6. Ozzie, Ozzie, Ozzie. All Australian made Miniwatt tubes (at least 50 years old) on a Murbue base. Black Lace was always going to be a very Ozzie build. All tubes: 6V6, 6SN7 and 5U4 are Ozzie made. The 6V6s are black glass and spent 40 years under a house nearby uncovered. To keep with the old school feel carbon film resistors are use throughout except for the cathode Rk which are 5W wire wounds. The PS is split at the Russian 4uf PIO first cap. Two 5H Hammond chokes split the PS to pass through a C-R-C filters. 100uf-6.8ohms (carbon film)-100uf. Even at the driver tube the PS is split in two for two drop down resistors each with a 47uf snubbed electro for storage and further filtering. Two 5H Hammonds handle each stream of HT. So as you can see a dual PS stream right from the first cap all the way through. Most filter electros are snubbed with 0.1uf high voltage polies. Only with my ear pressed hard into the bass cone can I hear the very slightest hum. From 1m nothing. Russian PIO caps are used for inter-stage. All hook-up wire was off-cuts from the power tranni and OPTs. The solder was from the 60s or 70s - lead, tin and copper. The sockets are a resin style, no ceramics around here! OPTs Edcor strayed black. The bypass caps on the 6SN7 are bypolar and the bypass caps (Ck) on the 6V6s are low ESR electros. The black lace the amp (Black Lace) has been photographed on will be cut to for a dust cover when the amp is not in use and will be weighted down with clear and emerald glass beads. A great job for my 85 year old mother who loves doing this sort of thing and is good at it. Tomorrow I get the whole day to listen to the amp. All tubes should be run in but all other components are new. The sound for now playing laid-back jazz is crisp, fast and uncoloured. Tomorrow's hard core listening may reveal other characteristics. Now for some images.
  7. Item: Usher R1.5 Power Amp Location: Doncaster, Melbourne Price: $1500 Item Condition: Excellent - 6 Months Old Reason for selling: Upgrade Payment Method: Pickup - Cash, Paypal, Extra Info: Purchased amp new around 6 months ago. The amp has a very smooth sound, and has heaps of grunt(huge bass response). A very tube-like sounding solid state amp. I have driven difficult speakers such as ATC's with no problem. I believe this amp could drive most speakers. From what I have read, the first 50 Watts are in class A. A few reviews: http://www.audioreview.com/cat/amplification/amplifiers/usher/r-1-5/prd_327557_1583crx.aspx http://www.usheraudio.cz/data/test/15-usher-r1-5-and-p-307a-av-magazine-03.pdf http://www.tnt-audio.com/ampli/3_power_amps_e.html http://www.audioreference.co.nz/node/846/pdf Specs: Specifications Power Output (1): 150w @ 8ohm Power Output (2): 260w @ 4 ohm Power Output (Mono blocked): 300w @ 8ohm Frequency response: 20 Hz: 20 kHz : +/- 0.01dB kHz Impedance Input: 67K ohms Input Sensitivity: 1.6v of full rated output Inputs: 1pr XLR balanced / 1pr RCA unbalanced Outputs: 2pr Banana speaker outputs Instantaneous Current Supply: 75 A Power Consumption (Standby): 175 W Power Consumption (Operating): 720 W Signal to Noise ratio: <100dB Voltage: 230vac Height: 225 mm Width: 480 Depth: 480 mm Weight (net): 40 kg Pictures:
  8. Item: Accuphase E460 integrated amplifier with AD-20 phono board Location: Sydney Price: $6900.00 Item Condition: As new Reason for selling: Saving up for a good turntable Payment Method: Pickup - Cash, Paypal + 3%, COD Only Extra Info: Up for sale is my Accuphase E460 with optional AD-20 phono board, bought it new from Sydney Accuphase reseller about a year ago, they retail for about $10010.00 with the phono board, it came with 5 years Australia warranty (4 years remain), it's my second system so it's never been worked hard, there is not short of reviews and data sheets on net, I have the original manual, remote control and packaging, so shipping interstate is not a problem, but i do prefer local pickup with payment, the amp is unmark in every way, just expect like buying a new open box stock, I will provide a copy of tax invoice for warranty purpose. Feel free to ask questions that you may have. I enclosed a link so you can have more information about this beautiful amp. http://www.accuphase.com/model/e-460.html Pictures:
  9. I built this transformer only valve amp back last year (March 2013). It has no capacitiors or resistors in the audio path but simply uses a Hammond Nickel core interstage transformer and a Edcor 5W OPT. Bias is provided by 4 X 9V batteries. The bias is permidiently on but the batteries virtually have no drain on them. The PS uses a step down tranni into a step down tranni backwards to generate about 200VAC. The amp runs on 180V and uses 2 X UX -171A RCA nichel plate 1920's tubes. The rec. tube is a 1940s "80" and the base is a 1940's plant box. The amp only produces 0.5W RMS into 8ohms but drives my Fostex FE206 based speakers (96 db efficient) to better than moderate volume levels. I do have to use a specially built tube preamp with a Pass B1 buffer to get the best from the amp. What I am looking for is any schematics of simple valve amps which only use trannies in the signal path. Can anyone post a link to (or a schematic of) this type of amp. Mine sounds excellent particularly with voice. I called the amp "Intermezzo" The scheamatic should show -40V (-36V in my case) negative bias for 180VHT.
  10. Item: Pair REF9V3SE Monoblocks And P-9 Preamplifier In Rose Copper Colour Location: Kingaroy QLD Price: $5000 Then $3500 NOW $3200 Inc. Postage (Aus Only) For Quick Sale! Item Condition: Excellent, One or two Tiny Marks (See Photos) Reason for Selling: Got a Silver Pair of Ref9's to match other Gear, Need Tape Loop & Extra outputs now.. Payment: Paypal, Bank Deposit, Or Cash on Pickup (Preferred for Audition & Personal Inspection) Extra Info: Remote, Leads, Booklet Included.. Turns out there is a slight colour difference between the Mono's and the Pre, Which I only noticed when I stacked them to take pictures, Sitting in separate parts of the cabinet it is not noticeable, and I went for a year without even realising! Cosmetically they are very good with only minimal marks (See Images), and In perfect working order. I would be keeping the power amps but I've swapped for a pair of silver ones to keep the Mrs happy (everything Matches now), So these are selling to pay for them .Upgraded To the better Power Supply, Latest V3 Boards Installed By Tony Moore @ Ambience Loudspeakers. Auditions/Inspections welcome In Kingaroy. PS. Paypal will incur 3% fee to buyer at the new reduced price.
  11. Well it’s been a long time in coming but it’s finally here. Part of the reason it took so long was that it’s difficult to start a project like this because that first amp is both evaluated and stipulated at the same time. So if I give amp number 1 a seven for its bass performance then I’m saying that it has very good bass performance and that every amp that follows will be compared to that level of bass that is now stipulated (ie: set in stone) as a seven. You could say that I’ve declared that level of bass as a seven rather than evaluated it as a seven. In a way you have to listen to several amps to get an idea of the level of variety you expect before that first amp can actually be evaluated. Anyway, I have managed to wrap my oblong noggin around the concept so here we go with the very first Power Amp entry. 1. Burson PP-160. This is an amp I quite enjoy listening to, I’ve described Burson gear in the past as sounding crisp, snappy and airy and this amp is no exception. I should probably add detailed to that list as the performance of this amp is very good. It is not an amp to puff up its chest and announce its presence so at times it does seem to be a bit lazy because when the music dies down the music really does die down, but when called on it gives an excellent performance with nicely extended, airy highs (with a very nice “twinkle†effect on the triangle and piano), snappy mids (with transients in between that are very pleasing to the ear) and nicely defined deep and clean bass. What’s more Burson gear tends to keep this sound across a wide range of components that it is paired with, I think it may be partly due to the fact that it has a very even representation of the entire frequency range (so it does not emphasize highs, mids or bass). The PP160 is a stereo power amp with 70 watts per channel into 8 ohms and only one RCA input. It does have a booster amp function so that a lowish (sub 25 watt) valve amp can be plugged into it via a pair of “speaker in†binding posts but mine has been disconnected internally so I can’t test that function out. Test Rig. The Burson was fed from a Consonance CD120 via LBP Parapiao ICs into a Burson PRE-160 and then via Ribbonflex ICs into the PP-160. Then via Ribbontek speaker cables into my Lenehan S2Rs on their matched stands. Power was fed to all source and preamp components via a Consonance PS1 power filter board and to the PP-160 via a PS3 power board. Detail Highlights. Highs: Nice twinkle on triangle and piano, less air than there was when used with the Osborns. 7.5 Mids: Good snap, not as crisp as on the Osborns, excellent transients and nice airy space in between each instrument. 7.0 Bass: Deep and clear with distinct impact, depth and decay evident on drum strikes. 7.5 Vocals: Accurate and clear with female vocals clear in top end. F: 7.0 M: 6.5 Average: 6.75 2D and 3D Soundstaging: 7.0 each, instruments nicely separated and placed within the stage. Overall Performance Integration: Doesn’t excite in the short term, but if you stick with it you come to realize just how capable this amp is. An excellent listening amp that does not over emphasize any one part of the performance. It took a swap to another amp to make me realize just how good this one actually is, an excellent listening amp but not really a party amp. I would describe it as subtly brilliant and I’m giving it an 8.0! Ability to Emote: 6.5 Let down by a slight dryness in the mids, it believes it is up to you to enjoy the music, not it to make you enjoy the music. Electric Guitar Test: 7.5 Very good, very accurate, if it just had a tiny bit of agro energy (and I mean a very, very small bit) it would be a 8.0. 80s Rock Test: Everything is as it should be, including the tape hiss in the background (which is a bit of a mixed blessing). 7.0 Total Score: 71.75 I think this was an excellent amp to start with, it sets the bar a bit high but why not, right? Pics will be added just as soon as I find the charger for the camera. Edit: And I did. At rest. And ready for action. And in the interest of full disclosure. I am a Burson fan, every piece of Burson gear I've heard has been what I would call "above average" in performance and very well built. I have made every effort to conduct this evaluation in a fair and impartial manner. Though not necessarily in a mature one. The chair in use was a recliner of acceptable comfort level with adjacent shelving that is frequently used as a drink stand. The air conditioner was not in use for the review and I suspect this is the reason that the ice in my Pepsi melted long before I was finished. My long haired cat was strangely absent for the review so it worked out well that the room heated up a little as my feet would have been a bit cold otherwise. Scale: 1 to 3 means a performance below par with one being somewhere in the vicinity of fingernails on a blackboard while a poorly tuned AM radio shrieks out static in the background and 3 being just bearable but still rather messy. 4 to 6 is average, listenable but nothing noteworthy, 4 being a bit messy or harsh and 6 being pretty good but nothing to write home about. 7 to 9 is better than you would expect them to be, with 7 being a good performance, 8 being an exceptional performance and 9 being the best you are ever likely to hear. And it is pretty damn unlikely that I will ever award a 10 because that would mean it is the best of the best of the best. (Add them all up for a final score out of 100, and remember from 30 to 60 you can go from an absolute stinker to an amp that is pretty good at what it does, anything above 60 is likely to be something worth investigating) Next up is a stalwart of the power amp industry, the Rotel RB1070 which have on loan from ellrots.
  12. Recently I have been experimenting with my cd players once again. I have 2 marantz cd5000 in which sits the venerable Philips TDA1549 which is a dac chip as rare as hens teeth. In this Philips based cd player sits a digital volume control and normally a standard ic op amp for analogue stage. A couple of years ago I upgraded and modified these Marantz cd players with discrete op amps and jantzen capacitors in the analogue stage as well as new capacitors in the digital power supplies. This brought a marked improvement over an already great sounding stock player and I was happy to compare it with some great high end cd players as it seemed to hold it's own. After Lukas Fikkus's suggestion that this DAC chip has enough voltage out to drive an amp I by passed the analogue stages and I connected the dac chip up to the RCA outputs via Jantzen silver caps. Wow what a difference, I run the output directly to the modified version of a Marantz pm7000 power amp section only by passing the pre amp section entirely and use the cd players digital volume control to vary the spl. I am amazed at how much better it sounds and to be Honest I kind of like it better than my Musical Fidelity a3cr pre amp and power amp setup with an Audio GD dac being fed by a digital only Pioneer avi989 dvd player as the transport.(removed the analogue stage and power supplies) very clean, great bass control and crystal clear midrange and treble. very happy to say that I will not be looking for an upgrade in the future and am now considering bypassing all the pre amps in my systems with this method. I also have a Sony cdp308 esd that has been clocked and discrete op amps and jantzen poly caps in the output stage. The Sony is a different kettle of fish and must run through the analogue stage but it also has a remote volume control and variable output and direct into a power amp brings this tired old bird to life once again. A tube stage may add some benefit to the Sony but with the Direct DAC to power amp of the Marantz cd5000 I am in heaven. regards Jonathan
  13. Item: Elektra Theatron 7 Channel Power Amp With Upgraded Relays Location: Caroline Springs Melbourne VIC Price: $1750 (including donation to SNA) plus freight if required Item Condition: Excellent, 8.5/10 with upgraded relays Reason for selling: upgraded to the HD model Payment Method: Pickup - Cash, Paypal (family and friends) Extra Info: Up for sale is my Elektra Theatron. I am the original owner, I purchased it new from the Big Picture People in Hoppers Crossing Melbourne. It is in excellent condition and I have never had a problem with it. Lovingly cared for and comes from a smoke and pet free home. I just had it serviced by Arthur and he replaced the relays with the gold plated ones. I never had a problem with the original relays, rather I wanted to ensure it was in tip top condition before I sell it. There are many reviews of this beast. All I can say is that it is truly a wonderful high end amp produced by a passionate local manufacturer at a value for money price. Local pickup from Caroline Springs Melbourne VIC is preferred as I don’t have the original box. However, I can ship it at the owners expense, I would need to source a suitable box for transportation though. Pictures:
  14. Hi All, I have an RB1080 (2 x 200w/ch @ 8omhs) still in it's box unopened. Let me be clear.....purchaser shall open the box for the very first time! Kept for a rainy day but, it's something that never came to fruition. Come on, you've always wanted a power amp.......He's your chance to pick up a brand new unit at half current price. $900.00 ONO Cheers! C17 http://www.rotel.com...etails.htm?Id=8
  15. Item: Lexicon LX5 power amplifier Location: Sydney metro Price: $1950 Item Condition: used excellent 9/10 Reason for selling: moved and downsized Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: see below Pictures: see below Lexicon LX5 Power amp. 200 x 5 or 400 x 2 Bridged. Excellent condition 9/10. No scuffs, scratches or sun damage. Regretful sale, but I no longer have the room for a big 5.1 rig. Does not have original box, but with Manual etc. I have included the blurb below Designed to exacting standards, the LX-7 and LX-5 provide top performance and power even under the most rigorous operating conditions. With extensive protection circuitry, they deliver maximum performance without risking failure. The strong industrial design makes these amplifiers perfect companions for Lexicon processors and disc players. The LX amplifiers deliver ample power in a compact package.With individual amplifier cards, each channel drives an impressive 200 watts into 8 ohms, and is stable into 2 ohms. Bridgeable architecture makes it possible to drive even higher-power outputs, combining up to four 200-watt channels into two imposing 400-watt channels. Each 200-watt channel is capable of driving loudspeaker impedances of 2 ohms and above, while each 400-watt channel can drive impedances of 4 ohms and above. Massive toroidal power transformers and several oversized capacitors allow the amplifiers to retain ample power reserves even when all channels are delivering maximum output. Following the Lexicon design philosophy of flat frequency response, low distortion, and high signal to noise ratio, the LX amplifiers deliver the finest reproduction of extreme music and film soundtracks with exceptional fidelity. Selectable balanced (XLR), unbalanced (RCA), and 1/4-inch Tip/Ring/Sleeve inputs and four custom-designed, hand-graded output transistors per channel allow them to reproduce the subtlest sonic details with stunning clarity and dynamic range. Heavy-duty, gold-plated output connectors allow the LX amplifiers to accommodate a wide range of loudspeaker connectors, including bare wires, banana plugs, and spade connectors.A ground-lift switch is also available to minimize the audible hum that can result from multiple grounding paths. Lexicon LX5 Power amp. 200 x 5 or 400 x 2 Bridged. Excellent condition 9/10. No scuffs, scratches or sun damage. Does not have original box, but with Manual etc.
  16. Item: Pair REF9V3SE Monoblocks And P-9 Preamplifier In Rose Copper Colour Location: Kingaroy QLD Price: $5000 NOW $3500 Plus Postage For Quick Sale! Item Condition: Excellent, One or two Tiny Marks (See Photos) Reason for Selling: Got a Silver Pair of Ref9's to match other Gear, Replacing Pre with BCD Pre2p For Tape loop/Phono Stage. Payment: Paypal, COD, Or Cash on Pickup (Preferred for Audition & Personal Inspection) Extra Info: Remote, Leads, Booklets Included.. Turns out there is a slight colour difference between the Mono's and the Pre, Which I only noticed when I stacked them to take pictures, Sitting in separate parts of the cabinet it is not noticeable, and I went for a year without even realising! Cosmetically they are very good with only minimal marks (See Images), and In perfect working order. I would be keeping the power amps but I've swapped for a pair of silver ones to keep the Mrs happy (everything Matches now), So these are selling to pay for them .Upgraded To the better Power Supply, Latest V3 Boards Installed By Tony Moore @ Ambience Loudspeakers. Auditions/Inspections welcome In Kingaroy.
  17. Item: Pair Ref9V3SE Monoblocks and Matching P-9 Preamp in Copper Orange Colour Location: Kingaroy QLD Price: $5000 Including Postage Australia-Wide Item Condition: Excellent, One tiny Scratch on One Piece of the Pre-amp. Reason For Selling: Replacing With the 7Channel Model; Need the money for a Bike. Payment: Paypal, COD or Cash on Pick-up (Preferred so you can see the units in person before purchase) Extra Info: Original Amp Boards from Before Upgrades supplied, Remote and all Power/Control Leads. Approx 3-3 1/2 Years old. Gutted to see them go, hope they go to a good home!! RCA and True Balanced XLR on Monoblocks. I Apologise for the bad light in photos, they are perfectly matching in colour etc, Identical size as well for stacking. I just chose not to so I could go cheap on leads by putting them a metre or so closer to speakers!! ^_^
  18. Just a quick question to the more technically minded out there. I notice that my Halcro gear has both voltage and current outputs on the pre and current and voltage inputs on the pwr amp. The only thing mentioned in the manuals is that using the current inputs can eliminate ground hum and some similar issues but I was wondering... Is there any difference in the effectiveness of using current instead of voltage? Is one method potentially superior or inferior to the other? Or is there no real difference to talk about? Just one of those things that might otherwise have kept me awake a little longer at night, so I thought I might as well ask the minds that know.
  19. Item: Audio Research VT50 power amp Location: Clayton, VIC Price: SOLD Item Condition: Very good Reason for selling: Need to free up some funds. Payment Method: Pickup - Cash, Paypal, bank deposit Details: This is a lovely amplifier. It was my first valve amp, and made quite an impression. Build quality is excellent, this thing is a tank. It sounds like I expected a valve amp to; meaty bass with a lovely warm midrange and smooth highs. Even though it's only rated at 45wpc, it didn't have any trouble driving my Dynaudio C1 and Magnepan MMGs. Going by a previous owner, the valves are approximately 2 years old and would have relatively few hours on them (I can't say how many exactly but I know the previous owner used the amp sparingly). The unit will come in its original double-box packaging with power cable, proof of purchase and manual/booklet etc. Demos are welcome, as is pickup from Clayton 3168. Shipping to eastern states should be $60-70 via insured courier. PM me with any questions! Reviews: http://www.drhifi.net.au/Reviews/ARC%20VT50%20Review/1.htm http://www.audioreview.com/cat/amplification/amplifiers/audio-research/vt50/prd_115604_1583crx.aspx More info: http://www.audioresearch.com/vt50.html Pics:
  20. Hi everyone. I was just wondering if anyone has had any experience with the Emotiva range? I'm looking at 2x XPA 100, XPA-2 or possibly the XPA-5 (depending on the stereo quality compared with the stereo and mono's). Also I'm looking at the XDA-2, USP-1 or UMC-200 (if i went with the XPA-5) to drive them. The biggest deciding factor for me is sound quality for stereo. Surround sound in the same unit would be handy for the future but stereo is my focus for now. For now it will be powering a pair of KEF LS50's and a pair or AXIS HTLS (floorstanders) but in the near future will be upgrading to something that can take advantage of the extra power. Also if there are any other suggestions around the same price range that would be great too. Thanks
  21. Item: ME750 power amp Location: Adelaide. Will post nationally at cost, but it's heavy. Price: EOI Item Condition: Excellent, internally better than new, see below Reason for selling: Downgrading - this is too much amp for me, I've changed to more sensitive speakers Payment Method: Pickup - Cash, Paypal, Bank Transfer Extra Info: No marks or scratches externally except some slight polishing scuffs on the top, though you'd have to hold the amp up to the light to see them. If you can. Completely rebuild by Paul Fenwick, SA's only qualified ME repairs as recommended by Peter Stein. Bought second hand from a dealer who claimed it was fully serviced, he lied - I spent over half my asking price getting it restored in early 2012. I'll offer a six month warranty if you find any defect, as this amp is built like a tank. Note - you will hear the fan working once you switch it off into 'stand by' mode, as this is a cool down cycle. The fan is inaudible in use. This is not a defect. Paul's build notes from our emails: "In summary the ME750 has been completely rebuilt with new top quality electrolytic capacitors where needed and known trouble spots as well as mods to size and voltage ratings of many electrolytic capacitors as suggested by Peter. This has been performed on all boards in the amplifier including the control board which has also had new IC’s fitted as well as the caps. I have also installed copper shielding around the aux/secondary transformer (supplies voltage for IC’s only) as well as fitting new fan support foam. Repairs to the printed circuit board on one channel were performed and new driver transistors fitted (I see this often and have developed a fix for it that is both electrically and mechanically perfect). Repairs to flat multi core control cables were also undertaken. The ME750 has been running beautifully now for the last 24 hours continuously (soak test and measurements)and sounds stunning. I have just re-biased it yet again and DC offset is now zero as it should be (was 600mV on the left channel which I was not happy with and it turned out to be an intermittent resistor and out of spec zener diode killing the servo IC). New filter material has been fitted and it is filtering as it restricts the air flow just enough to raise the heat sink air temperature by 10-15 degrees C when in place and maintaining an average temp of 55 degrees C over 24 hours at varying volume levels. Time spent on this amp would run into 100’s of hours (21 hours were spent on disassembly of the entire amp and cleaning all the old sticky foam out of every nook and cranny and off the printed circuit boards and components)!" And the nameless dealer I bought it from admits: "The end result however, seems to be that you now have an amplifier with better than new performance and with a replacement value of probably $5500. So although this has been a drawn out exercise the end result is pretty good for your musical enjoyment." Pictures:
  22. OK, earlier this year I had the Redgum monoblocks fail on me and cause much wailing, gnashing of teeth and stress induced panic. They shorted (somehow) and had to have the transistors replaced. Now I have, just this morning, had an Exposure Classic 28 fail on me and send a deep, intestine twisting, thrum through my much loved speakers. What I would like to know is: 1. What causes this? and 2. Could it be due to me doing something wrong? If it happens to be 2 then I'm going back to integrateds as of today. You don't have these issues with integrated amps, 50 (or thereabouts) integrated amps and not one bass note of death. I haven't even got to ten power amps and this makes two (three if you count the Redgums as 2 monoblocks) times that the Grim Reaper has dropped by my sound lounge to tune his Bass guitar. What is going on guys?
  23. Hi All, I recently picked up this Mitsubishi DA-A15 Power amplifier, I thought it was a great pick up - the look of this thing is impressive. Currently it's not going 100%, It makes a clicking noise and the audio cuts out and then repeats like this. The right heatsink heats up extremely hot after a few minutes and it is in rough condition. Which now leads to my Questions if anyone out there can answer; - Is this particular amplifier worth the time / Money / effort ? - Is there anyone whose had experience with this sort of amplifier that can shed some light on what to expect (Reputable?/Reliability/Soundwise?) - How much $$$ would this amp get against the likes of Pioneers similar models, Seeing as I can't find Mitsubishi amps anywhere Any help or advice is very much appreciated - I have also attached a few pics.
  24. Item: Bel Canto Evo 200.2 Location: Bathurst, NSW Price: $925 Item Condition: Excellent 9/10 Reason for selling: Bought the Bel Canto Evo 4 (run in bridged stereo mode) so this one is excess to my needs Payment Method: Pickup - Cash, Paypal, Bank transfer Extra Info: I loved this amplifier so much I upgraded to the next model up. The Bel Canto is a large slice of high-end audio at a really affordable price. Neutral, with a wide deep stage, I find it superb with almost all forms of music that I like; classical , blues, rock and roll and jazz. Can also be run as a mono bridged amp, pumping 700W in 4ohms. Image is stock image; I'm having trouble getting a decent image out of my camera at the moment. Pictures:
  25. Hi All Anyone have recommendation for good Amp to drive these speakers? Regards A
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