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Found 4 results

  1. Hi SNA'ers, Would love to get some advice and feedback in replacing the tubes on my mono blocks. I would like to achieve something that is more warmer, and most likely a little lay back as I listen to Jazz namely Bebop. The tubes that I am looking to replace are EL84 which I have learned are smaller pins, with more usage for guitar amps as opposed to audiophile HIFI; although, the amps are great listening regardless. Goals are to replace these blocks with something else in future.For today, I little learnings alone the way. I have been reading up on this, but sadly it comes off as a completely different language for me. I figure that if I'm to swap the EL84 to another one such as Mullard that I'd just need to get matched quads and redo the bias. Is this right? I am looking to achieve a British sound. I am also looking for some recommendations and experiences with this type of changes. In addition if someone has some that I can loan or cheap matched sets (quads x 2) that I can buy to start my journey into tubes. Current set up is Rega P7 | Rega Ania | Emotiva XSP-1 Gen 2 | Manley Mahi Mahi | Dynaudio Contour S 3.4 | Spendor S8 I have taken photos of the current tubes which have never been changed. As a side note: Am I running into issues using the Mahi's to drive the Dynaudio (4ohms)? Taken from the Manley website: Input Tube: 1 x 12AT7EH large plate Eletcro-Harmonix Russian Driver Tube: 1 x 6414 JAN NOS GE or Raytheon branded Output Tubes: 8 x EL84 Ships with Russian NOS EL84M (aka 6Pi14Pi-EB)
  2. Item: Weston Acoustics Rare Black Matching Touchstone Pre Amplifier and Custom 300b tube mono blocks in gloss black over wood grain- price change. Perth WA Price: Price: $7000 Original receipt shows just under 12k including extra cables made by Earle, Upgrade to remote and Balanced with 2 extra added inputs section. This amps hold their value better than almost anything and would be double or more if a European or US brand name was attached, they are stunning in everyway. They are that good and simply stunning to look at. Item Condition: `Almost Perfect with spare tubes cannot spot any issues and all running smoothly and sweetly. Spare tubes for almost every tube on pre and mono blocks and no 6 month plus waiting list. Reason for selling: Simplfying Extra Info: Pickup - Cash, Paypal, COD Only- prefer pick up as 3 very heavy boxes plus box of valves and chords etc. But can box and pack at buyers cost. Extra Info: Hand built to order as are all of Earle's masterpieces. Earle's first set in Polished Black finish with heavy duty remote control for volume and has extra balanced inputs, very very rare 6 input Preamp. Have shots of them being built and as below. A Good Selection of spares tubes as well about an extra full set in total and supplied by Earle's own hand made RCA cables. Earle did not ever add remotes untill i asked if possible and took 3 months to discover one good enough to be used on his beautiful products. Very regretful sale and can demonstrate in Perth. http://www.westonacoustics.com Perfect and as new without the very long wait list, 6 months or so and look awesome in black at night with the rest of the system glowing. Have instruction books and come with standard power cords as supplied by Weston Acoustics. Shipping possible at buyers expense and they would need all the tubes moved and boxed and then padded and packaged into 3 boxes each weighing 20 kilos x3 and tubes on top. `i would recommend a crate from a shipping agent that are not that much and well worth the peace of mind. Pre Amp Specifications.from website. mine are custom orders and actually below in photo section and they are more powerful . 35 watts not 18. 4 x 300 tubes per mono block. Max Voltage Output ......5 volts rms. 14 volts peak. Frequency response.......6hz to >50khz Separation.......……….... >55db Signal to Noise............. >88db A Weighted Signal to Hum…….…......>68db Distortion.................…..<0.05% at 0.5 volt rms output Hum Level…………….......<0.1 millivolt Gain.............................6db Inputs………..…………......6 Outputs .............................2 Mono Block Power amp see actual SPECIFICATIONS sheets below these were from the website and did not not realise mine were so much higher. Power Output - 35 watts upgraded from 18 per channel pure class A Frequency response -3db - 6hz to >75khz Signal to Noise - >90db A Weighted Signal to Hum - >80db Distortion - <0.05% at 1 watt rms Hum Level - <3.0 millivolt Sensitivity - 500mV Input impedance - 62K Inputs 1 Speaker output 8 ohm (6 to 12 ohm is fine) Damping Factor >5 (20hz to 20khz 8 ohm) Weight ~20kg (~44lb) per monoblock. Dimensions 440mm x 370mm x 220mm (width x depth x height) per monoblock. Preamp very similar plus small box of tubes and cables. Pictures:
  3. Item: MFA 75B monoblocks Location: Blue mountains Price: 2000 Item Condition: i am the 2nd owner. the original owner purchased them new in the states in about 1990 - comparing them with the likes of the harman kardon citation 2. thats what he told me anyways. they have some worn writing on faceplate and the chassis sags a little under the weight of the transformers. this can all be seen in the accompanying photos. perform flawlessly Reason for selling: just too powerful for my current speakers (100 and 102 dB respectively). Payment Method: Cash, Paypal, COD , transfer etc Extra Info: MFA Systems M-75B monoblock amps (Moore-Frankland Associates), 75wpc, 1984-1989These are very nice sounding and exceptionally well built amps. They were designed by Bruce Moore (Bruce Moore Audio Designs) and Scott Frankland (Wavestream Kinetics). They use top quality parts and are hand built in the USA, using the point to point wiring method. They have unregulated power supplies (no current limiting) and run in class A up to 40 watts output, and class AB1 above that. These will ship with a set of excellent quality recently replaced (no more than 50 hrs) USA GE 6550 output tubes - two per amp. 6DJ8s are Brimars. They can also use KT88s, KT90s, and KT99s. The amps are rated at 75 watts per amp into 4,8, or 16 ohm loads. They use some of the biggest transformers of any amps in this power range and are extremely wide bandwidth (16-80khz). They sound lush and detailed but with plenty of sparkle in the highs and lots of authority and control in the bass. These are classic designs of top quality and are quite rare. The amps also have AC balance pots to fine tune them. please note the amps are 118V so a tortech stepdown transformer is included if needed pictures
  4. Item: Weston Acoustics Rare Black Matching Touchstone Pre Amplifier and Time Machine 300b tube mono blocks in gloss black over wood grain. Location:Perth Price: $8500.00 Original recipe shows 12k including extra cables made by Earle, Upgrade remote and Balance section. This amps hold their value better than almost anything an would be double or more if a European or US brand name was attached, they are stunning, if they don't sell at this reduced price i will keep forever. They are that good. Item Condition: MINT Reason for selling: Change of Room and System requirements and too much equipment and need to focus direction. Payment Method: Pickup - Cash Preferred, Direect Payment Paypal plus costs 3% i believe Extra Info: Hand built to order as are all of Earle's master pieces. Earle's first set in Polished Black finish with heavy duty remote control for volume and has extra balanced inputs, very very rare 6 input Preamp. Have shots of them being built and as below. A Good Selection of spares tubes as well about an extra full set in total and supplied by Earle's own hand made RCA cables. http://www.westonacoustics.com Perfect and as new without the very long wait list, 6 months or so and look awesome in black at night with the rest of the system glowing. Have instruction books and come with standard power cords as supplied by Weston Acoustics. Shipping possible at buyers expense and they would need all the tubes moved and boxed and then padded and packaged into 3 boxes each weighing 20 kilos x3. Pre Amp Specifications. Max Voltage Output ......5 volts rms. 14 volts peak.Frequency response.......6hz to >50khz Separation.......……….... >55dbSignal to Noise............. >88db A WeightedSignal to Hum…….…......>68dbDistortion.................…..<0.05% at 0.5 volt rms outputHum Level…………….......<0.1 millivoltGain.............................6dbInputs………..…………......6 Outputs .............................2 Mono Block Power amp SPECIFICATIONS Power Output - 18 watts per channel pure class A Frequency response -3db - 6hz to >75khz Signal to Noise - >90db A Weighted Signal to Hum - >80db Distortion - <0.05% at 1 watt rms Hum Level - <3.0 millivolt Sensitivity - 500mV Input impedance - 62K Inputs 1 Speaker output 8 ohm (6 to 12 ohm is fine) Damping Factor >5 (20hz to 20khz 8 ohm) Weight ~20kg (~44lb) per monoblock. Dimensions 440mm x 370mm x 220mm (width x depth x height) per monoblock. Pictures:
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