Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

okay, I've been using the 2101 since 96, and lurking in the various 
newsgroups since Randy was still posting.

Here's my question/problem, I can't seem to get the "dual preamp" set 
up mentioned in the 2101 (artist) manual working correctly.  I've got 
a Marshall DSL201 ombo (1x12, 20 watt, ch. switching).  I've done 
exactly what the manual says (using a "y" adapter since the DSL201 
doesn't have 2 inputs) and the balance of signals is wildly off.  In 
other words, if I use the Sum/No Sum/Bypass to control which preamp 
is in, BIG difference in volume and the sound of the effects is very 
weak.

Yes, I've triple checked the connections.  Has anyone else had a 
problem with this. I'd love to keep the analog section of the 2101 in 
front of the marshall and get the effects in the effects loop of the 
marshall, mainly because --  with the 2101 in front of the amp -- the 
digital effects because SERIOUSLY pronounced when I engage the 
overdrive channel on the marshall (must be something to do with the 
preamp circuit design when the other preamp tubes are engaged in the 
overdrive channel).  Anyway, if I've got, say, a flange with a bit of 
delay and its sound great in the "clean" channel, when I switch to 
the overdrive channel the effects become so pronounced it's like a 
new patch.

So, anyone connected the 2101 in the manner indicated in the manual 
to get both preamps, and done so with an amp that does NOT have dual 
inputs?  Anyone using the 2101 with a DSL201?

BTW, the DSL201 is fantastic because you can drive the power amps 
hard at a volume that doesn't kill on stage or drive the sound man 
crazy (and rarely has the keyboard yelled "turn it down").

FYI, I'm playing a variety of guitars through this rig: 82 American 
Strat w/ Gilmour EMGs, Epi Les Paul w/ Duncan 59 and JB, ASAT with 
stock p/u's, and an Epi Riviera w/ stock p/u's.  All run great 
through this rig.

Thoughts and suggestions are appreciated.

Greg