Archive of the former Yahoo!Groups mailing list: MOTM

Hi
Im a knew MOTM user, just received my first 4 modules and the soldering iron
is still hot. The quality is just as great as expected from what I ve heard from
this list and the MOTM website and I cant wait to get everything up and
running.

One of my modules is the 410 tripple filter which includes some 4558 op-
amps in the design.The 4558 is more or less a twin 741 which is not the best
audio opamp. It says in the manual that these were there in the original Korg
design and thats why these quite old opamps are used. I dont now the
original Korg 3100 sound and there is nothing wrong with vintage design but
has anyone tried to use never "better" opamps. TL072 should replace with no
problems I assume.

For now I think I ll put in some good quality IC sockets for easy replacement
then I can test different opamps later.

Greetings from Denmark

Gregory