Maybe I'll start a new thread, but it's always good to test-the-waters:
Anyone using the BX500 (or similar 500w Class D) into 2, 15" cabs at 2 or 4ohms? Anyone doing so and played a venue where this wasn't loud enough? Explain. THX!
(((BTW I have a Carvin Neo 600w rms and a fEARful sub with an "emergency" Kappa-Pro15LF2 600w rms. Tonight I'll test the new fEARful sub with 200-300w rms into each cab from my "pa" amp. If the volume's good, I'll be looking at a BX500 to replace my 80lb. power amp & 50lb. rack.))))
Hmm, ended-up running my amp at near-full-capacity just to match the PA-mains and sidefill volume (for when I play clubs with no PA): 650watts into the Carvin Neo 4ohm, and 400watts into the KappaPro15LF2 8ohm. Interesting that the Carvin started out a bit louder in the 100-200watt range, but the Eminence ended up louder at twice the ohms/resistance, and with fuller bass. To be fair, the Carvin is in a tiny, Sonic Mini cab. But with the 6.7mm xmax of the Eminence vs. the 4mm xmax of the Carvin, I really did expect twice the vol. and about 3x the bass, which I got.
Anyhow, this was just one of those common, unofficial ear-tests. I'm sure others will want more tech-data; or provide it themselves. But the soundman/club owner loved the fEARful cab and KappaPro15LF2 too.
My conclusions are
1) Man, an Avatar TB153 and Greenboy fEARful 15/6 must REALLY smoke.
2) For the clubs and music I play at least, I know the BX500 isn't gonna satisfy me. The BX1500 too would only give 450w to the Carvin 15" and 300w to the Eminence 15".
3) The Carvin 15" is at its limit at 600w rms, so I can't stack it with the Eminence 15" for 2.67 ohms and run them at 2000watts with the Carvin B2000 amp either.
4) Maybe I'll get a Carvin BX500 to run the Carvin 15" as a monitor, and then a Carvin HD1500 PA/slave amp (900w bridged at 8ohm) for the Eminence Kappa 15". Hmm.
Heck, idea #4 would cost almost $1,000 with rackcases. The 2x6" ALPHA CUBE I'm prototyping is looking better and better as it'll bring my 8ohm fEARful sub down to 4ohm for cheap, provide monitoring for the stage side and rear, and I could sell my 2nd 15" cab to fund just the BX500. Total cost, about $250 shipped for the ALPHA CUBE parts and labor from a friend (vs. $1,000 for idea #4).