well i found out the modle number is T6124 and the rms is 500 w

 

If I've figured this right, this is a link to your amp.
XPA4100

150W x 2 in bridged mode (4 ohm minimum).

I'm so confused. Why doesn't it say 150W x 1 in bridged mode? The rear channels would become a mono channel when you take the positive from one rear side, and the negative from the other rear side. Then he could still wire two speakers to the front channels...
Or does this mean that he'd be able to bridge the front pair for one sub and rear channels for another sub?

I haven't been able to find out if that MTX sub is a dual-voice-coil or single-voice-coil woofer. If its a single, then you're getting 150W from your amp. Slightly under-powering that sub. If its a dual-voice-coil, then you're either giving the amp a 2 ohm load, or 8 ohm. 2 if the VC's are wired in parallel, 8 if they're wired in series. The amp is not 2 ohm stable when the channels are bridged. If you have an 8 ohm load, then you're cutting the power down to about 75W.

But like I said, if its a single-voice-coil sub, and it is (as we know) 4 ohms, then you're just under-powering the sub a fair bit.

 

I'm with you here. If it is like most other 4 channels then that is what they mean (I think). Channels 1&2 for powering the fronts, and bridge 3&4 to drive an amp at 150 WRms which is pretty underpowered.

What does the MTX sub say in the manual, if you have it? Look for OHMS, VOICE COIL, and WATTS or POWER in RMS. RMS is important.

Edit: Link to your sub specs: http://www.mtx.com/caraudio/products...ubs/T6124A.pdf

Looks like it takes 250 WRms so if you bridged the Sony, the sub would be getting a little over half what it is rated for. I will still sound "OK" but not as good as it could.

 

All right I don't have the manual but I am getting a 700 w mono block will this work? And thanks for the info

 

According to the MTX website your sub will take 250 WRms. If your new monoblock REALLY puts out 700 WRms then you can cook that sub fairly quickly.

I dont remember now...did you have one or two of those subs in an enclosure? If you have two, you should be fine. One, be careful.

NOTE: The above statement is dependant on what LOAD (ohms) you are feeding the amp. Looks like your sub is 4 ohm. So look at the amplifier and see what it puts out at 4 ohms.

Manufacturers like to quote bigger numbers, so your amp may be 700 at 2 ohms, 350 at 4 ohms, etc.

 

well i did a littel research and found out that my sub is 4 oms and as above stated it is 250 rms and i only have on 12" in bass works box right now it sounds pretty good soo if my amp isnt 600 watts what is it ? and if soo is there any way to get mor power out of it

 

The information to your amp was kindly posted by Tragic above. Here it is once again:Dual Electronics - Mobile Audio Amplifiers - XPA Series

 

keep that sony in the bassworx enclosure until you buy yourself a new subwoofer and amp setup.

 

i would love too but the bass works box is for a 12" and the sony is a 10"

 

1 cubic foot sealed.
all the measurements should be there.