The best sounding audio integrated opamps

[Andrea:]

Trust me - the OPA1611 is an outstandingly good sounding little thing.

Then comes the LT1028ACN8.

[leeperry]

hey Andrea, I'm really hot for the NG27

HA INFO - HA INFO NG27 - Amplificateur casque USB - Ipod - DAC PCM2702

do you think I can replace the op-amps by AD797B/1028A? BUF634 is used to drive the headphones apparently? it's meant to be used as a 4580 to flood the headphones w/ current apparently?

some reviews: http://forum.lowyat.net/topic/1212815

and a friend of mine sold his STX after receiving it, it does ASIO/KS

from the reviews above, I won't be able to swap the BUF634...but I could ditch the dual opamp for 2*1028/797

[Andrea:]

You can't swap the BUF634 for another buffer easily...but you can always (if you like) "stack" two of them.


I like it except that I don't expect all that much for the BB PCM2702. Maybe it's better than I think. But I'd still prefer to go with the upper model with CS4398 or AD1852 DAC chips (and coaxial/optical inputs too)


Anyway... if you're inspired... and the PCM2702 will pair well with the OPA1611 (though the BUF634 less so).

[leeperry]

yeah ok, we'll see...coz I really need 24/192 anyhow...16/48 is a deal breaker

[Andrea:]

Originally Posted by leeperry

yeah ok, we'll see...coz I really need 24/192 anyhow...16/48 is a deal breaker

Ah well, the USB input implemented with either the PCM2702 or the PCM2704-5-6-7 is limited to 16 Bit 48 KHz anyway.

You need to get a Super Pro 707, which is equpped with the C-Media CM108, to get a higher sample rate USB input, still for cheap diykits

Or for exclusive computer use, even better would be that Musiland USB thingy, which has a discrete buffered headphone amp, too...

[leeperry]

this one is 16/96: HA NG98 24/96 USB Sound Card + Mini DAC + Headphone Amp - eBay

80 EUR shipped w/ one DAC, 90 EUR w/ both DAC's...and there's more op-amps that can be rolled.

I'll think about it

[Andrea:]

Originally Posted by leeperry

this one is 16/96: HA NG98 24/96 USB Sound Card + Mini DAC + Headphone Amp - eBay

80 EUR shipped w/ one DAC, 90 EUR w/ both DAC's...and there's more op-amps that can be rolled.

I'll think about it

That is precisely the one I meant before. Unfortunately, from the USB input (given the PCM2902 USB interface), it won't take any more than 16 Bit 48 KHz.

Take a look at the Musiland...I don't remember how it's called

[Andrea:]

Pacific Valve & Electric Company Pacific Valve Musiland Monitor 01 US

[Andrea:]

Anyway, I think I've found my next speakers! The Italian made "Indiana Line Tesi 260" (the "Musa 105" being a little too expensive). It's so new it's not even in shops yet. I heard the smaller, and less recent "Tesi 204" recently and it performed very well too (better balanced than that twice as expensive B&W DM686), though I prefer how this new model looks, and that it's bigger

[leeperry]

Originally Posted by Andrea:

Pacific Valve & Electric Company Pacific Valve Musiland Monitor 01 US

can't roll