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Max Headroom

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  1. The power amps had balanced inputs added during their design phase to accommodate those with pre amps that have balanced out, but the designer is not keen on Balanced inputs/outputs due to the cost of properly implementing a true balanced design. See the OAD website for a treatise on the pros and cons of having a balanced design.
  2. Item: OAD Ultrafidelity CP1 Preamplifier and UF1 Power amplifier Location: Williamstown Vic Price: $6900 - RETAIL $12,800 Item Condition: Like new Reason for selling: Upgrading Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Here is something special that you don't see every day on StereoNet. The reason is that those who buy the OAD pre and power amp combination rarely if ever let them go. Probably the best kept secret in hi-end audio, Jon DeSensi has created something very special with his CP1 pre and UF1 power amplifiers. The degree which he has gone to create these world class amps is something that most manufacturers wouldn't consider. WIth a background in electrical engineering and consulting on large scale projects for government and industry, his experience and knowledge in designing and developing cutting edge electronics is unmatched in the Australian Hi-Fi industry. Having previously created one of the most popular DACs available internationally, and a range of amplifiers under the Musiclabs brand, he is now back with his latest creations. I have owned many solid state and some valve amplifiers before hearing the OAD pre and power amps, but nothing prepared me for the CP1 pre and UF1 power amp. On hearing them in my system I knew there and then I had to have them. It wasn't a case of 'these sound really good', more like 'these amps are so superior to anything I have ever heard' that I had to have them. These amps re-define the concept of clarity, detail and purity of signal. When putting these amps up against anything anywhere near its price point, the OAD amps will shock you with the soundstage and presence they create, and the unforced detail and dynamics. And absolutely unmatched at anywhere near the price is the included phono stage. It will easily compete with an RCM Sensor 2, and is only bested by phono stages significantly more expensive. I was originally running my Michell Gyrodec into a Musical Surroundings phonomena, which I thought sounded pretty good. I then upgraded to the battery powered Musical Surroundings Nova II, which was an eye opener and a serious improvement over the phonomena. It was amazingly quiet, with music escaping from a black background. But absolutely nothing could have prepared me for the massive improvement that the phono stage in the CP1 delivered. I had the Nova II plugged into the CP1 to compare with the internal phono stage... which lasted all of 30 seconds... I disconnected the Nova II, packed it straight into a box and never used it again. The Nova II is an amazing phono stage, but is not in the same league as the internal phono stage in the CF1. With a high quality moving coil cartridge, the low noise and high bandwith phono stage will floor you with its immediacy, colour and dynamics. The things that make the OAD amps different, also define them as groundbreaking, and unlike many cutting edge products, highly reliable. Starting with the CP1, its a masterpiece of design, with the shortest possible signal paths, with all unnecessary elements removed to improve sound quality and reliability. The OAD CP1 has eight discrete power supplies, four for each channel. There are no mechanical potentiometers and switches - source switching and volume is controlled by a colour touch screen. Input selection is made with high quality gold plated Swiss made relays, and only the selected input is connected - all other inputs are isolated. The selected input is followed by a buffer amplifier and presents a benign load to signal sources. The volume control uses laser cut precision, low-noise and zero- induction resistors. It controls both volume and balance. Such is the quality of the resistors, that they were originally designed for the aerospace industry, The CP1 also uses these resistors in selected areas of the signal path as well as direct coupling to remove all capacitor colouration. This is the kind of component you will not find in just about any other hi-fi component. Crosstalk is virtually eliminated by using a dual mono layout for left and right channels. Input and output signals are made through the highest quality silver-plated oxygen free copper (OFHC) RCA connectors. There are 6 inputs - 5 line stage and 1 for connecting moving magnet or moving coil cartridges. The UF1 is extremely fast with ultra-wide bandwidth and has a high current capability. An amplifier must be able to cope gracefully with impedance dips to 4 Ohms and lower. As the load impedance of an amplifier is decreased to below 8 Ohms large signal non-linearities begin to appear. Unlike, crossover distortion, this large signal non-linearity is significantly dependent on the amplifier's output stage power transistors. Utilizing the latest in cutting edge bipolar transistor technology to deal with these significant distortions. the transistors used in the UF1 are in a different class from the more conventional transistors. The current gain is completely maintained over its full power bandwidth, and accurately processes relatively large signals to deliver current capacity and maintain performance, independent of the load presented by the loudspeakers. . Correct utilization of these transistors minimizes not only the large signal non-linearities but significantly lowers crossover distortion. The use of of these bipolar transistors also allows the UF1 to omit using an output transformer. In its place are Thermaltrak output transistors. The internal layout of the UF1 power amp is also dual mono, and built to an incredible high standard with the highest quality components, ensuring reliable and trouble free operation. One thing that will strike you when you listen to the UF1 is that when you drive the amp hard, the sound will not distort, the quality of the sound does not change or decrease. Basically as you put the volume up the sound increases. With many other amps the quality of the sound being reproduced will change. What this means is that you can listen to a symphony orchestra and have the dynamics of a performance delivered without compression, or you can listen to a rock album turned up and get the same uncompressed sound quality throughout the frequency range. After listening to the CP1 and UF1, I couldn't go back to my previous amps as they sounded compressed and shut-in, missing the detail that the OAD pair brought to my music listening. It's really eye opening listening to these amps for the first time. You realise what is possible in Hi-Fi and you get a glimpse of the absolute high-end. Which probably makes you ask 'well if these amps are so good, why is he selling them?' Well after using the OAD amps, I have been bitten by the upgrade bug badly and I'm chasing the next step up. I want to see how far I can take things. Which means it's going to get expensive... real quickly. Unfortunately I can't afford to keep everything, so something has to give. I'm emptying the cupboards, selling all my extra gear, and saving for the next step in my audio journey. So I have priced these amps very keenly to encourage offers to purchase. The amps come with their original packaging so can be sent interstate. Included is a remote control, which performs the same functions of the touch display, including input switching, volume control, mute and standby modes. These amps are in as-new condition, and will suit someone looking to upgrade way beyond their current mid-fi equipment, especially someone who loves vinyl, has a decent turntable and wants to get a taste of the high end. A donation will be made to SNA once sold. https://www.stereo.net.au/news/open-audio-design-launch-at-sonic-purity https://sonicpurity.com.au/brands/oad http://openaudiodesigns.com/ Photos: Advertisements without photos of the actual item will not be approved.
  3. Item: Thorens TD125MK2 Location: Williamstown Price: $650 Item Condition: Reason for selling: Too many turntables, not enough time! Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Thorens TD125MK2 in good original condition. Lid has some scuffing but otherwise turntable’s condition is really nice. Comes with Thorens TP16 arm and two new switch covers. Has new Thakker belt. Many years ago my first ‘serious’ turntable was a TD125, and I’ve had a soft spot for them ever since, so much so that I couldn’t resist getting this one. But too much gear and not enough time means this should go to someone who will appreciate it! Great as is, fantastic when upgraded. Donation to SNA on successful sale Photos: Advertisements without photos of the actual item will not be approved.
  4. I'd question that comment. As always theres good and bad examples of everything. I've heard plenty of AB amps that are so-so. And the above comments probably refer to early versions of class-d amps. Also, if you dont spend a bit you are going to get a cheap amp no matter what. Good Class D amps are great, but theres many different types and implementations so do a bit of research and audition some of the better ones before taking anything for gospel.
  5. Anyone who tried to message me re these cables and found my inbox full can message me now as i've cleared out my inbox.
  6. Item: IsoAcoustics GAIA III set of 8 Location: Williamstown Price: $550 Item Condition: Brand New Reason for selling: NLR Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: I purchased these for a set of speakers that I ended up selling so they have sat in their boxes unused. They are un-marked and absolutely new. Will support speakers up to 32kg each. I actually have a set of Gaia ii on another pair of speakers I own, which is why I bought this set. They are so effective I was astounded at the improvement they delivered, I just bought this set without even thinking. They're also great in a practical sense in that they wont damage wooden floors - spikes always seem to slip out of spike shoes when you are positioning speakers or moving them, but the Gaia's won't damage your floor. And spikes don't come close to the effectiveness of these feet. Search the internet. You will find innumerable reviews of how effective these things are. You wont find a more effective upgrade at anywhere near the price. And if you have carpets you can buy spike cups specifically for these feet, so you can use them anywhere. Improves the clarity of bass and midrange, improves sound staging, makes your speakers sound like they've just been upgraded to the next model up. Unbelievably good. HomeTheatreReview.com had this to say... "With every track, I consistently heard tighter bass and lower midrange, with greater focus and depth. What I already considered to be stellar imaging of vocals and instruments was further improved, and the soundstage was also noticeably wider and deeper. Overall, music had a more three-dimensional, natural sound, causing the speakers to disappear more completely from the room. These improvements were not subtle, either. They were both obvious and significant. With the GAIA II isolators in place, music listening was just a more emotional experience. In fact, I found myself queuing up track after track, discovering micro-details in the music that I hadn't heard before, no matter the genre being played. High Points • The GAIA isolation feet provide significant improvements--including tighter, more impactful bass, improved precision of voice and instrument placement, and the creation of a wider, deeper, more three-dimensional soundstage. • Speakers disappear from the room with the GAIAs in place, providing an experience that brings the listener closer to the original sound heard in the recording studio. • The stylish design aesthetic of the smoked chrome footers will complement the look of most any loudspeaker. Low Points • I can't think of any low points for the GAIA isolators.... IsoAcoustics is a company that gets loudspeaker isolation right--and isolation is important if you want to experience the very best performance that your speakers have to offer. Few products can make such a noticeable performance improvement to floorstanding loudspeakers as the IsoAcoustics GAIA acoustic isolation stands. In my opinion, they are are a no-brainer for all floorstander owners with speakers priced anywhere between the extreme budget and the über expensive ends of the price spectrum. I've heard A/B comparisons with a variety of well-respected speaker brands, including Focal, Bowers & Wilkins, and now Aerial Acoustics--all of which revealed significant sonic improvements. You owe it to yourself to either catch IsoAcoustics at a regional audio show for your own A/B audition or just take the leap with an IsoAcoustics retailer that offers a satisfaction guarantee. For me, this product is so good, it's simply a must-have, Pictures:
  7. Item: Tara Labs RSC Prime 3M bi-wire speaker cables terminated as standard speaker cables Location: Williamstown Price: $395 Item Condition: Excellent Reason for selling: NLR Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Pair of excellent Tara Labs RSC Prime bi-wire speaker cables. These cables are flat solid core cables. PLEASE NOTE these cables have been terminated as standard speaker cables ie non-bi-wire. I assume a Tara Labs re-seller can re-terminate as bi-wire. $10 donation to SNA on successful sale of cables. Pictures:
  8. If you were in Melbourne it would be gone! Damn, no packaging (do you have packaging?). Bargain! Good luck with the sale.
  9. Have Mkii version, and these speakers have to be heard to be believed. Very good buying for a great set of speakers. A slice of high-end heaven and very under-rated. GLWS
  10. Item: Sonus Faber Guarneri Momento speakers Location: Williamstown, Victoia Price: $9200 $8500 $8250 Item Condition: Almost new (except for leather front panels as there is 2 or 3 small marks on the edges of the leather front baffle, hence the price drop) Reason for selling: Selling on behalf of my brother - he needs the funds for renovations. Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: The most beautiful pair of Sonus Fabers, the Guarneri Momento. These exquisite speakers were purchased new by my brother from Audio Connection in NSW who were the Sonus Faber Distributor at the time in March 2010. They present in perfect condition minus a small mark or two on the leather edged front baffle (Can be seen in the images). But you will notice that the ‘string’ grills are in as new condition, i.e. not loose and shabby. They come complete with original timber crate for the speakers and cardboard boxes for the stands. Those that know of this model will know how incredible they sound. They were designed by Franco Serblin as a musical instrument. This model was his last Guarneri before he sold the company and arguably his greatest achievement. The first three images are from the internet to give you a better sense of their fine furniture grade finish, and sense of scale, as the photos supplied to me by my brother really don't do these beautiful speakers justice. Sonus Faber Guarneri speakers don’t come up often - if you’re looking for something a little special, and you don’t want to compromise on sound quality, you should consider these speakers. The soundstage and mid range is to die for, and the speakers just sound better every time you connect them to more powerful and refined amplification. I've been running these speakers at my home for the last week, and what they say in the reviews is true - you don't notice that you are listening to a small speaker as the bass coming out of these small beauties is quite simply amazing. Just give them some serious quality power amps to hang off, and you will be gobsmacked. A beautiful classic like no other. Michael Fremer wrote about these beauties in Stereophile. Regarding the quality of bass reproduction he wrote: “I haven't heard the original Guarneri Homage, so I'm not in a position to compare, but it's no overstatement to write that, in my more than two months of listening, the Guarneri memento never produced a sour note, and never failed to astonish and surprise me by producing (among other things) remarkably deep, powerful, well-textured, and nimble bass free of midbass bloat and overhang — at least down to just below 40Hz, which is deep enough for most of the range of both acoustic and electric bass.” And the superb mid-range and top end: “The Guarneri mementos' midrange transparency and freedom from congestion or obvious tonal coloration got me as involved in the music as I could be—the subtlest musical and spatial details were revealed with pinpoint precision across and within a far larger, deeper, and stabler soundstage than such small boxes had any business producing. Solo vocalists were rendered with a complete absence of nasality, chestiness, or other obvious distractions, thanks both to the speaker's freedom from midbass bloat and its silky-smooth yet finely detailed top end.” Alan Sircom wrote in Hi-Fi Choice: There’s a paradox, here. Sonus Faber reputedly designs all speakers using its own 50-watt Music amplifier. If so, Sonus Faber hasn’t heard how good Songs Faber’s speakers really are. Because, although these speakers sound magical with 50 watts or so delivering the goods, they sound an awful lot more magical with 200 or more up the speaker terminals. Using the word ‘magical’ twice in the same sentence would be overkill for any other speaker; with the Memento, it’s almost understatement. This is a sensational speaker, possessed of a musical passion that’s all too rare in hi-fi. Once again, you can set aside all the usual hi-fi requirements (it does all that, perfectly) and become absorbed into the music, into its harmonic richness and texture. You feel a connection with the music that can happen with other small speakers, but is fleeting. On the Guarneri Mememnto, you feel as if you are having a masterclass with Bach and Glenn Gould when playing the Goldberg Variations, or a lesson in abject funkiness when listening to Fred Wesley and the Horny Horns. And you get this on almost every disc played. If there is a downside to the Guarneri Mememnto, it’s that it won’t let you play music in the background - the sound (even at low levels) draws you in. This isn’t a product you simply listen to. It’s a product you fall in love with. It’s not simply a high-end sound; it’s a magical sound, backed up by one of the best-looking cabinets money can buy. The Guarneri Mememnto will seduce you. Give in to its charms! Pictures:
  11. I'm surprised these speakers haven't sold. They're really that good with top flight amplification. You get a slice of serious performance for not much money. I'd buy them but I have too many speakers but so tempting. If youve got a really good amp then buy without hesitation as these speakers will shine.
  12. Brilliant speakers. Had a pair. Drive them with a gutsy amp that has lots of current drive and they will reward you with a lively, accurate and punchy sound. Comparable in speed and imaging to a pair of Wilson Sashas, just not as much absolute bass extension, but at a fraction of the price, a top quality audiophile speaker. Great buying!
  13. Not sure you understood my post Snoopy8. By ‘aggressively priced’ I meant very cheap. When you add up the time it takes to add components to the board, the different case rear for the extra ports and the extra parts, you wonder how Clay makes any money.
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