purk
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Last Activity: Today 08:31 AM
Visitor Messages
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However it totally died - electrostatic and dynamic - a month ago. Several more componants in the PS died and when I tried replacing them the soldering pads on the circuit board came off because of the heat damage. So I stopped.
Luckily the guy at Bolder Audio said he would attempt to fix it in October, including fixing the design flaws - he is working on many SP amps now, including some ES-1's.
But as much as I love the sound of both the electrostatic and dynamic outputs, I doubt I would have bought this amp if I knew what i was in for.
Damn you Mikhail!
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When I got it, it only sounded good with only a certain set of tube combinations and it took hours to warm up enough to sound good. And it did sound very good. I had correspondence with Mikhail to figure out what was wrong and he suggested me to send it in. I'm not that dumb.
After a few months the electrostatic output became unlistenable. I finally opened the power supply and saw that one of the wires from the transformer was touching a diode and melted the insulation and shorted. There was heat marks around some of the componants so I measure them. There were five dead diodes, so I replaced them myself. The amp sounded perfect now. Now all sorts of tube combinations worked fine and the headphones became listenable fairly quickly. And it sounds increadable.
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Damn! Why couldn't I have let you buy that SP Concerto!
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Please...you can give me a call. -
About Me
- About purk
- Biography
- My supervisers don't mind me listening to my DHA3000+L3000 at work!!!
- Location
- Norcross, GA
- Interests
- spending time with my lovely wife, watching TV, surf the web......play sports...
- Occupation
- Structural Engineer / Soon to take my PE license....
- Interests (non-headphone)
- Structural Engineering.
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Signature
- Source: Modwright with Kern Modded Sony SCD-777ES w/ Tube Rectified PSU http://www.positive-feedback.com/Issue14/modwright.htm, Exemplar 5910, Modded Sony SCD-1
Headphones: Sony MDR-R10, Audio Technica ATH-L3000, W2002 w/ L3000 drivers, and Sennheiser HD-650 w/ Zu Mobius or Moon-Audio Silver Dragon or Stefan Audio Equinox
Amp:Heavily Upgraded Single Power SDS w/ Blackgates, High Output Capacitance, High Voltage Option w/ Adjustable Bias (Stainless Steel Chassis.) & Audio Technica DHA-3000, Larocco Headcode Dual Mono, & Maxed PPAs
Speakers:Paradigm Reference 100 V.3with Sony N/E/P9000ES Combo
My Feedback
SONY MDR-R10 (SN. #368) & Sennheiser Orpheus Headphone System (SN. # 129)
- Source: Modwright with Kern Modded Sony SCD-777ES w/ Tube Rectified PSU http://www.positive-feedback.com/Issue14/modwright.htm, Exemplar 5910, Modded Sony SCD-1
