I would be interested in trying a couple fed from +/- 12V or +/- 15V.
I would be interested in trying a couple fed from +/- 12V or +/- 15V.
Barry
Location: Stäfa (near Zürich), Switzerland
Posts: 308
I'm Richard.
Micromega Stage 5
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;
OP opamps - note there is no output cap, the pot is to adjust for 0v offset, so final opamp would need to support this;
Original layout (before silly-sized smoothing caps );
Richard
Internal of CD63 showing Audio GD discrete op-amps.
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
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The Op-Amps arrived yesterday and I fitted them today. Initial impressions - very good. Will report back in a couple of weeks time.
Buy Bose...And get your parking validated!.
https://youtu.be/ZCBe7-6rw4M
No Highs...No Lows....It Must Be Bose!
Who else got some of these?
Buy Bose...And get your parking validated!.
https://youtu.be/ZCBe7-6rw4M
No Highs...No Lows....It Must Be Bose!
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.
Last edited by Qwin; 05-04-2016 at 11:38.
Location: Leeds
Posts: 164
I'm Dave.
Yup, 48 hours on constantly and ......boom
Buy Bose...And get your parking validated!.
https://youtu.be/ZCBe7-6rw4M
No Highs...No Lows....It Must Be Bose!