I was wondering if anyone has experience running a preamp pedal like the VT Bass DI or Para Driver from Tech 21 into a dedicated power amp, and how good the results are. I'm looking at a Crest Pro-Lite 2DSP or 3DSP (possibly even the newer Peavey IPR2 models). I know that the non-DSP versions have a better input sensitivity but I'd like the additional features of the DSP, although not at the expense of a poor sound because of a mismatch between the pre and power sources. Any thoughts or experienced to share would be appreciated. Thanks!