after some searching on these three cabs, I can say that I really didn't find much with my specific combination of bass/preamp/amp/cab(s), so I thought I'd let you guys know what has been terrifying the neighbors with rattling china and windows... Ibanez sr755 bass
Sansamp bass DI
(used as preamp) Carvin R1000 head
(Sansamp running into effects return - bypasses tone controls on the head which SUCK)
Cabs: JBL JRX 125
(2-15" w/ tweeter PA cab - 500W/1000W pgrm/peak)
- ROCKS THE FREAKIN HOUSE!
Handles 1000 watts @ 4 ohms no problem (500W program but I keep it below 5ish on the knob), waaaay too loud for any soundguy or stage on the planet (I'm convinced), and has a SIZZLING top end. Only bad things are that the cab is heavy and incredibly awkward to move by yourself and it take a little bit of volume (not too much, just average excited practice volume) to sound its best. Primary cab for my hard rock band.
Anecdotally, last theater I played (appx. 600 ppl), sound guy rushes the stage in the first song and waves at me to turn down. After the show, 3 people come up, tell me they are bassists, and ask how I got my tone. As one put it "I have to know... how did that happen?!?!? Every time you played a note, my chest exploded and my skin ripped... best overdrive tone I've ever heard!!!!" Ampeg SVT 410 HLF
(500w/1000w pgrm/peak @4ohms)
- Bought used from Guitar Center. Used one practice for my praise and worship band. Returned the day after.
Classic Ampeg sound was good, but when turned up AT ALL (running 350ish watts at 4 ohms), the cab farted more intensely than Jabba the Hut. Thought it was lacking wattage (rated 500w program/1000w peak), so I bridged the amp and pumped 1kW into it... farting continued at volume, so I went back to 350W. Same happened when playing anything below an D. Don't expect to be slammin' the 5'er's heavy gauge with this one.
Seemed like a solid cab and sounded good in the store, but couldn't handle the volume nor the low notes. Too bad... really wanted it to work out. Great punch and sound though! Would make a good cab for quieter players who only play 4-strings or for getting a good sound at a studio. Carvin BRX 10.4 Neo
(1200W@4ohm - not sure peak or pgrm, but Carvin says it handles just about anything you can throw at it)
- Returned the Ampeg, bought the Carvin. Will be here Friday, and will certainly report back, after (hopefully) shattering some garage windows and scaring nearby dogs and children. PRAY FOR YOUR WINDOWS, NEIGHBORS!!! PRAY!!! hehehe
In all seriousness, though, I don't need to be the loudest person on the planet. What does it for me is that pocket where the drums and bass and guitar all pretty much have their place but none are over-powering. I like my stage volume to be as close to that sounds-good-but-won't-cause-dain-bramage volume. If a cab needs to have a little push to sound good, give it, but I'm not about blowing speakers out.
That being said, in my hard rock band I'm fighting a guitarist with a Peavey 5150 half-stack and a love of loud volumes
The opposite is true in my So. rock/blues band. and my worship band is about middle-of-the-road.