Hi folks,
Wow! Thanks for all the help.
To clarify..
- My bass is passive (listed in the OP) with new roundwound strings (D'Addarios). Tone, volume, full up. I pretty much only use the P Pickup.
- Tried several different cables....even a wireless, for comparison's sake!!! :-O
- This is the BH250, which only has the three-band EQ and no gain control.
- The various drive and compressor Toneprints help a little, but not much. Honestly, the toneprints as a whole, including the FX ones, don't sound that great to my ears, and they don't compare AT ALL to analog stompboxes. Ahhh, the age-old debate, I guess...
- If I cut the mids, I lose the boxiness, but then I still have the booming low end and very little actual treble. The sound still sounds blanketed and dull.
- When I dime the treble, it sounds like a tweeter clipping. Ugh.
I don't have access to other cabs (I don't own a cab; carrying one around the NYC subway system is impractical, owning a car to drive one in is cost prohibitive, and most clubs here insist you use the house cab anyway to cut down on turnaround time between acts). I decided to try a little experiment; I ran the direct out through a cheapo mixer, and out of the mono line out of the mixer into a Tech 21 Power Engine 60, a clean power-amp combo designed for running preamps and whatnot without coloration.
I got substantially less boominess and congestion in the mids, but still a dull top end (albeit not as dull as running it through an 8x10).
I was hoping to run the amp this week without any pedals, but I've found that adding some top end dirt and harmonics from a BDDI helps. Also, the BDDI's inherent midscoop dials out the PRECISE frequency of the honkiness. So, I guess this is what I'll have to do for the time being. :-/