I would be interested in trying a couple fed from +/- 12V or +/- 15V.
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I would be interested in trying a couple fed from +/- 12V or +/- 15V.
Micromega Stage 5
https://farm2.staticflickr.com/1633/...c1ee849a_b.jpg
Only had audio cct smoothing caps replaced with much higher values so far, and a snubber added over the AC winding. The implementation is pretty good on this player, but I will be looking to try different opamps. Supply is +/-10v.
DAC/Audio PCB;
https://farm2.staticflickr.com/1508/...9982969e_b.jpg
OP opamps - note there is no output cap, the pot is to adjust for 0v offset, so final opamp would need to support this;
https://farm2.staticflickr.com/1661/...2f93542f_b.jpg
Original layout (before silly-sized smoothing caps :));
https://farm2.staticflickr.com/1686/...89d4c231_b.jpg
Richard
Internal of CD63 showing Audio GD discrete op-amps.
http://i73.photobucket.com/albums/i2...psujlr2srd.jpg
For anyone who is interested other mods are a Trichord Clock 4.2, multiple voltage regulators in place of current limiting resistors (some are DIY low noise), a JLH Ripple eater on the PS, Panny Caps replacing standard PS caps, HDAM modules by-passed and other stuff that I probably can't remember:D
The Op-Amps arrived yesterday and I fitted them today. Initial impressions - very good. Will report back in a couple of weeks time.
http://i73.photobucket.com/albums/i2...psvkemxuch.jpg
Who else got some of these?
I wasn't aware of this thread till today, but I used the V5 modules in my active x-over for my Yamaha NS-1000M speakers.
Much better than any of the opamps I tried.
http://theartofsound.net/forum/showt...M-Tweaks/page9
I have another 6 on the way.
Yup, 48 hours on constantly and ......boom:D