[Edwood]

I meant that each soundcard had a different pair of OPamps.

What's a great clock generator to use?
-Ed

 

[Jasper994]

The next thing you know Peter's going to be building his own amps based off of his Gilmore just modded to hell and back...

 

[Iron_Dreamer]

Quote:

Originally posted by Jasper994 The next thing you know Peter's going to be building his own amps based off of his Gilmore just modded to hell and back...

Hehe, I don't know about that one, though it would be fun to put together an amp someday. Maybe once I get the GF into headphones. She already remarked about how much better my Klipsch PM2.1's are than her stock Dell computer speakers. Who knows where the ceiling may lie?

 

[Edwood]

LOL, careful what you wish for.......

-Ed

 

[Iron_Dreamer]

Quote:

Originally posted by Edwood LOL, careful what you wish for....... -Ed

Heh, indeed, but she's a grad student with a real job, so she can do wallet damage at her own will, not mine

 

[Glassman]

nice guys.. could you do some really close macros of the whole board so that I could read all the markings? also try listening the card in the middle and use foobar to resample to 88.2kHz and then 96kHz.. in each case different oscillator will play so you can somehow compare them, although it's not so fair comparison.. but at least something..

regarding the 'good' oscilator, RME is said to have very good ones and at that point power supply is what matters, not the oscillators itself, so try to build some really clean power supply for them.. use LT1761 LDO low noise regulators, 5V I suppose.. and use ~220uF OSCON cap after.. this should be a VERY worthwhile upgrade..

again, do your best to provide me the greatest close-ups of tha boards guys

 

[Edwood]

Well, I'll try my best, but my camera is not all that great.

Yeah, I have no idea where power filtered could go.

Would be great to be able to filter the power more.

-Ed

 

[Edwood]

Hot damn. I'm really lovin the OPA627's.

Seems only a tiny bit warmer than the stock so far.

It's really smoothing out as it burns in. Was a bit harsh at first. But now it's really starting to sound different than stock.

Same amount of dynamics, but not as fatiguing.

Sound stage is a bit closer up, but definitely wider. The 627 really helps to eliminate that "in a metal tunnel" ish sound of the stock. It's really subtle, but that's what the stock sounds like in comparison with the 627. Highs are more convincing to me, especially cymbal "sizzle" and decay.

What's interesting, is that at louder levels, it doesn't make me cringe nearly as much as the stock card did on more treble aggressive music.

Gonna keep burning the 627's in........I'm really digging it so far.

-Ed

 

[Iron_Dreamer]

I'm still rockin' out to the LT1122. I gave the AD8065 a few days to burn it but it still sounds rather lifeless, though it seems to have a pretty flat frequency response. Perhaps a good chip for analyzing the sound more than enjoying it? I really love the extra bass slam of the LT1122 over the AD chips.

 

[Edwood]

Zemo's sending me a 627. (hopefully it is)

A pair for you too.

-Ed

 

[Iron_Dreamer]

Good deal. I think either those or the LT1122 will end up being my "final chips."

 

[Edwood]

Or both. Mwahahaha.

Why settle when you can have both?

-Ed

 

[Iron_Dreamer]

Indeed. Of course that is true. I usually like to leave my PC running for days on end, so turning it off to change opamps gets a bit annoying. I will just have to keep experimenting until I reach a conclusion.

 

[Jasper994]

or you could just get a second RME and use two different chips...

 

[Glassman]

if you like OPA627, try biasing them into Class A and you will love them! put ~6k8 resistor from output to -12V supply, that's all you need to do..

simple equation - 12V / 6800Ohm = 1.75mA, use anything that will gave you around 2mA per channel..