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> From: rob_ocelotTL048 must be a mistake. I expect they mean TL084, which is a quad FET-input
>
> I was checking out Youtube videos of the Polaris today and I
> came across this gem:
>
> http://www.youtube.com/watch?v=TlXI0QBOAZw
>
> Text in the video reveals that the owner replaced the last
> LM348 quad op amp (Z3 on the output board) with a TL048cn.
> The end result is supposedly a punchier sound and more
> defined low end. I did some more research and came across
> someone else saying to use a Burr Brown OPA2604 -- which is a
> dual op amp.
>
> Anyone here attempted this mod or something like it?
>
> I'm contemplating using the 2604 since the TL048 appears to
> be obsolete and difficult to find. If I were to use two
> 2604's then is it possible to tie the 12V supply for each
> chip together? (effectively making a quad op amp)