DOD 250 bass mods

[seanm]

I am trying to get better bass response from a DOD 250 reissue. I removed the 2 diodes and the associated cap to get a basic preamp. This makes testing the response easier since the distortion is not in the way.

If I put the gain at 12:00 and the level at 12:00 I will get distortion from the E string but the rest are fine. So the 4558 seems to be distorting at lower frequencies.

Any hints on what to tweak to fix this?

[j0shua]

..... DOS 250 use LM741 , not a 4558

[seanm]

..... DOS 250 use LM741 , not a 4558

The new reissue yellow box use a KA4558. There are acutally quite a few small component changes in the reissue.

[seanm]

Never mind. It looks like the problem is actually the bass  :evil: