2 Q 15's and 4 X 12's

[Naledge503 0]

Right now I have a pair of Q 15's in an 8.0CuFt enclosure, after all displacement. Tuned to 30 Hz. I was thinking about doing 4 X 12's in about 8Cuft enclosure tuned to 32 Hz. Power wise, it would be easier on my electrical. But my question is, would the response be there? Would the X's play sloppy? I'm happy with the Q's but I want a little more output (SPL). And I'm sure like alot of you, I like to change things up. Right now my Q's are powered off a PA A3000db at 1 ohm. The x's would be at 2 ohm. Just to throw this out there..I have 2 PA A3000db's if that helps you with your suggestions.

Suggestions please?

[///M5 2,833]

get rid of the PA and try a different amp

[Naledge503 0]

get rid of the PA and try a different amp

I have thought of that as well. I know you know your stuff. Can you give me a reason. I know that this amp is looked down upon but I have read on termpro that someone benched it at 2100rms. I also have seen a birthsheet for the Planet Audio VX2200d, which is the same amp internally, and it is rated at 2253 rms @ 1 ohm on 13.0v.

[///M5 2,833]

Because it is a piece of junk.

You'd probably be way happier with a higher tuning frequency as well.

A new box is a better idea than new subs.

[Naledge503 0]

Why is it a piece of junk though? I've had it for about 2 years. I've had them at 32Hz as well in a 8.1CuFt enclosure, and I like the 30 Hz tuning better. It plays alot flatter. I did like my 32Hz tuning on my old SD2.5's but not so much on my Q's. I was just wondering what the difference would be in output and response between the 4 X's and the 2 Q's. Also, what amp would you recommend?

[mjmarovi 8]

The Q's are the sound quality line, so of course they will have a little better quality, and also take much more of a beating. IMO I think it would sound worse and not be as loud. If you want louder you need to upgrade amp and/or build new box. Since you have two of those amps you could do two 18" BL's fully loaded, that should be quite a bit louder.

[Godsmack 361]

Runnin with Sean here...............GET A NEW AMP

It may be the same 'board' but a piece of chit is a piece of chit no matter what the label says.

Sundown, DD, US Amps, Rockford, Old Crossfire's (the new ones suck IMO), Orion and some of the JBL line are good amps man.

Go research and some suggestions can be given man.

J

[splblazer98 1]

:fyi: most birthsheets are just random numbers printed out within a given spec

get a new amp, 2 q 15s deserve a SAZ 3000d

also i don think the x 12s will be louder

[Naledge503 0]

Thanks for all the responses. Yeah, I know about alot of different amps. I was just in denial and didnt want to give up on the A3000db's. lol. Looks like I'll be selling a pair of A3000db's here soon.

I dont post much on here or CA. But I read ALOT. So if Chad says that he doesnt think the X's will be louder, then I'm taking his word..lol.

Edited December 13, 2007 by Naledge503