Boss LS-2/routing help please.

[ga_edwards]

Right, just acquired a couple of new toys after some experimenting last week with the two outputs of my Yamaha Attitude.

I want to use the p/up to supply the mid and top end, quite compressed and introduce a spot of blended in overdrive when I choose. The woofer will supply the real bassy low end, kept clean with a lighter dash of compression. Pretty much a la Billy Sheehan on a budget!

I have a Behringer bass eq to roll the low end off of the P p/up, a TC Nova Dynamics to separately compress the 2 signals and a Boss LS-2 to mix the two signals together which outputs to my amp.

My routing is:
P p/up let's call this signal '1' -> eq -> compressor channel A -> LS-2 return A.

Woofer p/up (signal '2') -> comp channel B -> LS2 main input.

LS-2 is set on A+B mix. Knob A controls signal 1 vol, knob B control signal 2 vol.

I initially though I would just plug one into return A, and one into return B, but it requires something plugged into the main input. No matter, I can freely mix the two signals no problems. I also initially thought the Nova Dynamics would ouput the 2 signals in parallel from one output, but alas it doesn't. Hence the purchase of the LS-2.

With me so far? Good...

Now the problem starts when I introduce overdrive into signal 1. I first tried my Digitech bass driver. No matter where I put it in the path, it seems to overwhelm the whole signal and kill the low end coming through signal 2. Even if I set the pedal clean so it sounds the same engaged or not. Turn it on, low end disappears.

I tried my old Marshall guv'nor too. Not as bad, but low end is still going, and it's really difficult to dial in the marshall's eq to get a tone similar to the clean tone - but dirty.

So I'm wondering firstly: Am I doing something wrong? Am I infact not using the LS-2 correctly? Is there perhaps an impedance mismatch causing these troubles when I turn the OD on?
Secondly: Is there a way to use the LS-2 so I have my signal 2 woofer signal, mixed with the signal 1 high signal, then mix in the overdrive to signal 1 on top. So using the A and B knobs to mix the signal 1 clean and dirty respectively with signal 2.

Any suggestions would be incredibly gratefully received. For now I'm pretty much content with just the clean tone, but a splash of OD without losing all the low end will really make me smile!