Is anyone running a 2x12 and a 1x15?

madbassplaya · #1 10-20-2010, 02:01 PM

Currently, I'm running a single 2x12 @ 4 ohms. My Carvin B800 head runs a max of 500 watts at 4 ohms. I have found a matching 1x15 cab though and am thinking about picking it up. It is 4 ohms as well and my head says that its capable of 2 ohms with 800 watts of power.

Is anyone else running a 2x12 and a 1x15? I've never ran an amp at 2 ohms before either. Any chance of it over heating or having problems running at its max potential?

Thanks guys!

craig.p · #2 10-20-2010, 03:16 PM

Yes, it's 2 ohms, but you'll send those speakers to Kingdom Come way before you approach the amp's current limitations. Be careful.

madbassplaya · #3 10-20-2010, 04:55 PM

interesting. i haven't even thought about that to be honest with you. i've been more worried the amp would over heat.

RickenBoogie · #4 10-20-2010, 05:15 PM

Idk about overheating, but certainly you'd be running the amp hard, and it'd at least get warmer than it does now. Shouldn't be a huge issue though.

craig.p · #5 10-20-2010, 05:29 PM

An amp's overheating is a function of the current flowing through the output stage. The mere presence of a low-impedance (low-"ohmage") load won't overheat an amp. It's the work the amp is doing into that load that determines its heat output. My point is that with so few speakers handling that many hundreds of watts, the amp will never get to the point, output current-wise, where it starts getting hot; your speakers will yell uncle way before then. However, if you were driving two SVT cabs, then it'd be another matter, because now we're talking about lots of voice coils and cones able to handle lots of current, plus SVTs aren't the most efficient cabs on the planet, either. That's when you might have a concern. But even then, if the amp were spec'd for safety at two ohms, there'd be no need to worry, assuming proper ventilation. (Some guys get into trouble when they start cramming things into a rack without thinking first.)

Don't worry, you're safe.

Hope this helps.

**BullHorn** · #6 10-20-2010, 06:14 PM

craig, he never mentioned what kind of cabs he's talking about. Some 2x12 and 1x15 cabs are intended for more than 800W and 1600W at peak.

I'm on a 2x10 and a 1x15 and it sounds good. Just listen to it. As long as the wattage and resistances are OK and you like the sound, go for it.

madbassplaya · #7 10-20-2010, 06:27 PM

Both cabs are made by Dr. Bass. The 1x15 is capable of handling 450 watts and the 2x12 is capable of handling 600 watts.

madbassplaya · #8 10-21-2010, 03:31 PM

I just sent payment for the 115. I hope these two sound great together!

Dark Barn · #9 10-21-2010, 07:23 PM

Buying used or new direct from the good doctor? Hope you've done your homework.

madbassplaya · #10 10-21-2010, 11:51 PM

Quote:

Originally Posted by Dark Barn

Buying used or new direct from the good doctor? Hope you've done your homework.

Ahh yes, I indeed know the horror stories.

I first bought my 2x12 used (in like new condition) and fell in love with it. When I saw this matching 15, I knew I had to have it because ordering a new cab would take forever if I got it. Its a shame really, his bass cabs are the best I have ever owned...

craig.p · #11 10-22-2010, 06:51 AM

Quote:

Originally Posted by BullHorn

craig, he never mentioned what kind of cabs he's talking about. Some 2x12 and 1x15 cabs are intended for more than 800W and 1600W at peak.

I'm on a 2x10 and a 1x15 and it sounds good. Just listen to it. As long as the wattage and resistances are OK and you like the sound, go for it.

Sir, you have fallen into the old speaker-ratings trap. 800 watts aimed at only three drivers warrants extreme caution, period. Especially in reflex cabs. I've already PM'd the OP on that matter.

redstrand · #12 10-22-2010, 09:12 AM

I put a MB 4x6 with my 1x15...rattles the rafters. You'll have 800 watts at your disposal, but you'll find that the full sound you're getting won't need full volume.

anonymous02282011 · #13 10-22-2010, 09:17 AM

Quote:

Originally Posted by madbassplaya

I just sent payment for the 115. I hope these two sound great together!

Are you nuts?

You read all the threads about how he's stiffed tons of people and you still sent him money?

madbassplaya · #14 10-22-2010, 02:50 PM

Quote:

Originally Posted by adbass

Are you nuts?

You read all the threads about how he's stiffed tons of people and you still sent him money?

apparently you didn't read the full thread. i bought the cab from an individual, not the company.

thanks.

LaklandMike · #15 12-10-2010, 03:59 PM

Hope you don't mind me bringing this back to life, but how did it end up sounding?