After getting my Seinnheiser HD600, what's next?

[jasonhanjk 0]

How many buffers are you using for the META42?

The recommended is 3.

 

2 for stereo and 1 for virtual ground. Stick to this config first until I find 100mA from the buffer not enough to drive HD600 300 ohm impedence to the max 80mW.

 

[Northern Oak 0]

I heard of ppl stacking 10 for each channel, guess it's a gross overkill!!!

[jasonhanjk 0]

I heard of ppl stacking 10 for each channel, guess it's a gross overkill!!!

10!!!

 

Definately an overkill. I am also currently looking at other possibility instead of the meta42.

I like to build some new circuit, is there anyone out there willing to test for me.

 

Instead of using 2 opamp and 3 buffer, I may try to buy 2 special Audio amp IC (TAD2030h) to replace the part of the meta42 design. Current THD for that IC is 0.1% and I don't know how is the META42 THD.Anyone got link to that???

 

A better version of that IC cost more than S$100 per stereo channel!

The cheap and good one less than S$10.

 

Maybe go down Sim ling tower tomorrow.

 

 

[Northern Oak 0]

Envious, I've got to work and by the time I get down to SLT, most of the shops are closed. When I go there on Sat, they are not even opened. I had been more reluctant to try DIY.

 

Have you taken a look at Pass Labs? I was told that the old A40 amp may be used to drive headphones ...

Edited May 6, 2003 by Northern Oak

[jasonhanjk 0]

Envious, I've got to work and by the time I get down to SLT, most of the shops are closed. When I go there on Sat, they are not even opened. I had been more reluctant to try DIY.

 

Have you taken a look at Pass Labs? I was told that the old A40 amp may be used to drive headphones ...

I can go there directly after work, reach there fastest 5.30...

 

Hmmm, Pass Labs. Will take note of this...

 

Goodnight!!!

[evil-zen 0]

dude check out tangent's website. chock full of DIY info.

 

tangent did a RMAA test on the new PPA in progress and the meta42.

http://tangentsoft.net/audio/ppa/bench/index.html