Looking to put a compressor in the rack with my old Trace Elliot amp. Been offered a couple of ART units, but can't find out much about using them with bass. ART Dual Levelar and ART PRO VLA. Bongo's reviews talk about the earlier Levelar, not sure if this one is just two of those in a full rack size. They both sound quite similar to me as far as compression goes. Not knock your socks off, not bad either. I do quite like the sound of the preamp on the PRO VLA, warms up the Trace a touch. I don't really have a lot of experience ith compressors to compare these with and was wondering what you guys thought, especially if you've A/B-ed with others like the DBX etc.