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>The Filter Factory/Queen (FFQ) works best at
>line levels so Electrix recommends that folks put it in the effects loops 
>of
>their amps.  But the looper comes before the amp, natcherly.
is it not possible that you put both the filter and the looper in the FX 
loop?
>So...for folks who play guitar and put their FFQ's before their loopers, 
>how
>do you boost the signal of your guitar to nominal levels for the FFQ 
>inputs?
I don't have the Filter Queen , but still need to 
amplify the guitar to line level.
I've been using an ADA MP-1 valve/transistor  guitar preamp lately.
Does good clean pre-amping, or interesting distortions.
:-(  but perhaps not as cheap as you'd like
(don't know though, mine cost £100 in GB, so you 
might find one v. reasonably in US).
andybutler