Master module

[Harry Bissell]

I've used the LM386 to drive headphones sucessfully. The performance is
good, but not spectacular. I usually use headphones for checking things
out (live?), and not for listening for hours... If you have "audiophile"
(which to me means you have a perverse obsession with audio... see
pedophile, necrophile... etc.) in your title, then this chip ain't good
enough.

The Op-Amp / Transformer is a long standing question. I vote TRANSFORMER
because it can give (with ground lift) total isolation between modular
and sound system. But if you control the environment totally (your own
personal studio perhaps) then the Op-Amp works just fine.  :^) Harry

Hallgeir Helland wrote:

> Hello all,
>
> I intend to make a "master" module for my modular, containing a
> simple stereo mix and stereo outputs and a headphone amp.
>
> Have anyone else made this kind of module? (probably yes.)
> If so, how did you build the headphone amplifier? I'd like
> mine to drive at leas 32 ohm phones, at a fair volume.
>
> And how about balanced outputs? Ought I use transformer-balanced
> XLRs or some sort of op-amp circuit? What is the best solution here?
>
> Thanks,
> Hallgeir
>
> BTW: Spring reverb is the COOLEST thing! (just finished mine.)
>
> --
> .,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
>  Hallgeir Helland   hhelland at mailandnews.com
>     Evlogia           http://fly.to/evlogia
> '¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'¨'