Audio speakers I have 2 MA Audio MA100XE 600 watt competition subwoofers ina great built ported box and wired correctly. I now have them hooked up to a 1500 watt monoblock bass bosst amp and they dont hit as hard as they did when i had my 800 watt amp that blew. why is that? & also i realized no air is coming through my port in the box anymore either. they just dont sound right.

• frequency response: 24-200 Hz
• power handling: 300-600 watts RMS (300 watts per coil)
• peak power: 1,800 watts
• sensitivity: 85 dB
• top-mount depth: 6-3/8"
• sealed box volume: 0.65-1.25 cu. ft.
• ported box volume: 1.0-2.0 cu. ft.
• Crutch field audio has a DIY section on box building ;)

If the amp is 1200 watts at 2 ohm stable you will want to set up the speakers as parrallel and bridge the amp. That means conncect the speakers with + to + and - to -. Look at the amp connections. Usually thereare connects that look like this:
+ -
+ - + -

If yours look like this use the diagram on top. You will use the + for the left ouput on the amp to the right - on the amp. This will allow you to use all the power from the amp. Be sure to lower the gain as to not pop the speakers or amp.

buy a bridged amp with half the power of your sub (ie 1200 watt sub use a 600 watt amp) this will stop distortion at high volume get in touch when you have the amp and i'll go through how to wire it .

Hello joseph_delac,

MA Audio's website has the recommended box volume and port size online here. A ported enclosure needs 3.0 CuFt of internal volume and the port should be 48 sq/in and 14.5" in length. A 4X12" rectangular port would give you the recommended 48 sq/in. Using 3/4" MDF, a box 16X18X25 has an internal volume of 3.25 CuFt allowing .25 CuFt for the sub and port displacement.

Hope this helps.

Hello aerickson28,

That MA need a pretty good sized box to perform properly. 2-2.5 cu/ft sealed and 5 cu/ft ported.

Here's a link to the MA Audio specification page for the HK15X2:

http://www.maaudio.com/product.jhtm?id=56&cid=16

Hope this helps.

yea at car audio store

This one Wire should be for the +. Try connecting the + to the Head Unit and - to a Common Ground. At the Worst, You will Blow the Amp Fuse if not Correct. The Lead from the Head Unit is Only an Off and On from the Ignition. Please Rate My Response! Thanks!

that subwoofer has dual 4ohm voice coils, if your amp can handle 2 ohms, you would put a wire from the positive (+) on the amp to the positive on both connectors on the sub, then hook the negative (-) on the amp to the negative on both the sub connectors that will be a 2 ohm load on your amp make sure your amp at 2 ohms is not more than 600 watts RMS or 1200 max.

It sounds like you've got too little impedance on it. How are the speakers wired? Are they in series (one speaker per channel) or are they in parallel (speaker 1 neg wire hooked up to channel 2, and speaker 2 neg wire hooked up to channel 1)? Or do you have a single speaker bridged (pos wire on one channel, neg wire on the other)? Often, an amp going into protection is a result of too much current draw, which happens when you're running a 2-ohm load on an amp that isn't rated to handle that (many are only OK at 4-ohms, which you'd have with series wiring). Let me know how you have the speakers wired and we'll go from there.

Make sure that you have the subs wired in a 4-ohm series and not a 8-ohm load