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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Denon DA-500 mod (after PCM1702 DAC I/V resistor?) posted by Fedde Bouwman on March 23, 2002 at 18:05:08:
Hi Fedde,a couple of extra suggestions in addition to Dave's.
Someone posted here recently with good results after biasing his AD825s into class A - do a search for details. Simply connect a resitor of around 5K between the output and the negative rail. If you like the results, you could try using constant current diodes of say 3mA instead for more stable biasing. Class A working usually results in sweeter sound.
Also, try bypassing the filter - this should be very simple to do in the case of a GIC. Listen at low volume to start with. If it sounds bad, then you need a filter. Try then replacing the OP275s with OPA604s (2604 if you need duals). These op-amps are well know for their smooth, warm sound.
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Follow Ups
- Re: Denon DA-500 mod (after PCM1702 DAC I/V resistor?) - Spartacus 10:37:42 03/24/02 (0)
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