I tried a variety of settings of the HPF variable filter, while keeping the volume control on full. My understanding is that the Series 3 is a cut-only volume control with no boost.
I could get stuff happening with the HPF filter that I couldn't with rolling off the BX500 bass control. At a certain point, it became too much cut as it approached the highest setting of 140 Hz. I'm not sure what frequency this was, but the most I set it at was 12 o'clock.
Very nice piece. It was quiet on the gig. Thanks for the toot on the HFP-Pre, Jeff.
Correct on the volume, always run it at 100%. I play mostly weddings and bar gigs, and I always run the fdeck HPF in my electric rigs. It cleans up my smaller amps and helps maintain the boom in all the crazy places they decide to throw parties in this town (especially those all-brick joints downtown). I also recently started gigging a BX500. I think the way the rolloff works on the FDECK is just different from what you can get making cuts at the amp, even on one with as much control as that Carvin.
Speaking of the BX500, do you ever run direct from the XLR out? It seems really, really hot for a pre- line out, even on 2 and with a passive bass. I'm shopping a good DI I can use in its place.


