erix
500+ Head-Fier
- Joined
- Jun 25, 2001
- Posts
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This is Amp 9
The enclosure is a 3.5" deep aluminum extrusion I got off the 'Bay. It looks very much like the extrusion used for the Cosmic and Supreme.
Details:
Jung's multi-loop topology w/ppl's resistor values
OPA2132P Dual Opamp
BUF634T Buffer (w/heatsinks cause they're so manly)
BUF634 virtual ground
Cerafine 2200uF/16V filter caps
Wima MKS2 1uF bypass caps at all supply pins
1% metal film resistors from the Shack
Runs off 12V wall wart from the Shack
Performance:
I measured less than .5mV DC offset at the output jack.
Sound:
Very nice, nuetral sound - not quite as *sparkly* as the AD823-EL2001 combo. Very smooth, which is good 'cause they will be driving a pair of Grado 80's.
ok,
erix
The enclosure is a 3.5" deep aluminum extrusion I got off the 'Bay. It looks very much like the extrusion used for the Cosmic and Supreme.
Details:
Jung's multi-loop topology w/ppl's resistor values
OPA2132P Dual Opamp
BUF634T Buffer (w/heatsinks cause they're so manly)
BUF634 virtual ground
Cerafine 2200uF/16V filter caps
Wima MKS2 1uF bypass caps at all supply pins
1% metal film resistors from the Shack
Runs off 12V wall wart from the Shack
Performance:
I measured less than .5mV DC offset at the output jack.
Sound:
Very nice, nuetral sound - not quite as *sparkly* as the AD823-EL2001 combo. Very smooth, which is good 'cause they will be driving a pair of Grado 80's.
ok,
erix