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DAC upgrade, worth changing opamps to?
DAC upgrade, worth changing opamps to?
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Old 11th April 2012, 06:22 PM   #1
grahamfocal is offline grahamfocal  United Kingdom
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Default DAC upgrade, worth changing opamps to?

hi everyone, i have an Original CD2008 MKII and have built the AMB DAC (Gamma 2) which is gorgeous, is it worth upgrading the opamps in the CD player as well (really simple and modular insides to the player) or does the DAC completely bypass all opamps in the CD player, and is it not really worth it.

I've got an idea--an idea so smart that my head would explode if I even began to know what I'm talking about
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Old 11th April 2012, 11:32 PM   #2
SoNic_real_one is offline SoNic_real_one  United States
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If you connect via SPDIF the two, the signal stays in digital form. So there is no need to upgrade the OpAmps (analog path) in the CD player.
if you want to compare the two DAC's (internal of CD2008 and the external one, than it would be good to change the OpAmps inside the CD player. But truthfully, that CD2008 has already decent OpAmps. And what's more interesting, it has two separated DAC's - one for CD (Burr Brown PCM 1792), another one for HDCD (Burr-Brown PCM1732). With OPA604 and OPA2143 OpAmps.
Your DAC has Wolfson WM8741, WM8742 or WM8740 DAC cips with AD8656 OpAmps (CMOS).
So it is really a tight race...

Last edited by SoNic_real_one; 11th April 2012 at 11:45 PM.
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