[JahJahBinks]

Can I use a different opamp on the ground channel than on L/R channel? 627 is pretty expensive.

 

[n_maher]

Quote:

Originally Posted by JahJahBinks Can I use a different opamp on the ground channel than on L/R channel? 627 is pretty expensive.

Yes, you can. There are a few threads on this here if you search. Results may vary as to what effect this has on the amps sound and just be sure to use an opamp that is unity gain stable.

HTH,

Nate

 

[JahJahBinks]

So this has some effect on the sound, that's interesting. I thought it's just a path for the return current.

 

[Teerawit]

Quote:

Originally Posted by JahJahBinks So this has some effect on the sound, that's interesting. I thought it's just a path for the return current.

Who knows, maybe you won't be able to detect it in certain combos

Which opamps were you planning to use?

 

[jar]

I haven't built my M3 yet, but I run 637s with a OPA227 in the ground on my pimeta for battery life reasons. I couldn't tell a difference between the 227 and the 627 in the ground on a pimeta. YMMV.

 

[JahJahBinks]

Haven't decided yet, but certainly less than 10 bucks.

 

[Teerawit]

Quote:

Originally Posted by JahJahBinks Haven't decided yet, but certainly less than 10 bucks.

$10 each? or $10 total?

 

[JahJahBinks]

less than 10 for ground channel opamp.

 

[JahJahBinks]

Also is it okay to use 1/10 w resistors in place for 1/8 w?