Circuit diagram of 1400 watt woofer amplifier

sub-woofer circuit Michael, Check the attached links,instruction and guides, Good luck
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Connect the dual woofer coils in series = 4 + 4 = 8 ohms. The home amp is safe at 8 ohm load.

Looks like you can use minimum 2 ohms, max 16 ohms

LFC Impedance Sensing

CS Series amplifiers feature innovative circuitry for safe operation into any load. When an amplifier senses a load that

overstresses the output stage, the Load Fault Correction circuit adjusts the channel gain to a safe level. Extreme load

fault under high power levels will cause the signal to be muted for the associated channel. This method of outputstage

protection is far more effective than the standard limiting found on conventional power amplifiers. The LFC
circuit is sonically transparent in normal use and unobtrusive when activated.

You will need the schematic diagram

The amp is a discontinued model, but I do think I found the specs on it. It will produce :
350 Watts X2 @ 4 ohms
700 Watts X2 @ 2 ohms
1,400 Watts X1 @ Bridged at 4 ohms
It is designed to be ran inline between your stereo and a set of, or a single, sub woofer.
This could be a significant amount of work for a beginner in car audio, but it can be done.
I would do a little research and decide if you want to use this amp. Join in on forums like http://www.caraudio.com/forums/forum.php, and http://mobileaudioforum.com/forum/forum.php to learn what can be done, and how to do it. good luck.

Hopefully this helps

your probably making your amp run to low ohms if its a 2 channel amp bridged to one channel you can probably only run it at four ohms

Also seeing as your subs are 2ohm dvc you can't wire them individually to 2ohm and use each channel separately. So i'd recommend buying a 2ohm stable monoblock or running it at four ohms. a 1400 watt amp'll still pound at 4ohms and it'll extend your amp's life span

yes bot if the woofer is 500 watt don't make to loud you will blow the woofer of.

First of all the EXA-3940 is rated at 350watts per channel in to 8 ohms. The 1400 watts is bridged into a 4 ohm load. Second, the speakers can handle 1000Wats peak with an average of 600 continuous (i'm guessing). That tells me that the amp is underpowered for the speakers. The sensitivity of the amp is such that the mixer is overdriving the input stage. That is what is causing the clipping. If you are looking for more volume, you are probably better off purchasing another amp and running them in bridge mode, 1 per speaker cab. Be careful though, not to overdrive the speaker cabinets either.

Dan

Sounds like you have burnt out something (as you probably already know LOL) but maybe you just over heated some wires that couldn't take the Amperage. If this is the case, you MUST find out:

Why there was so much Amperage there at the time
Why didn't the Fuse blow? (perhaps too high an Amperage fuse for the Unit?) and
Why could your unit not handle the Power? (perhaps not Rated for that Power Output?).

Note: Watts and Amperage are not Musical terms, they are Electrical terms. So an Amplifier Increases the output Current to a maximum level designated in various ways as PMP (common but misleading) RMS (the International Standard) and DIN (the mainly European standard). The receiving unit (in this case your sub woofer is designed to handle a maximum level of Current input and this is usually desribed (again misleadingly) as simply Wattage. The common factor here is that both your Amplifier and Sub woofer are probably using the PMP rating.

If this is the case then you can easily determine if the 2 units are compatible using their "Wattages". For instance, a 275 Watt amplifier is too much at HIGH outputs (volume) for a set of speakers Rated at 160 Watts (they will "blow") but will work fine at Lower volumes because the Amp is putting out less Power at Lower volumes and is therefore probably below the Speakers Maximum input range.

Conversely, it is OK if the speakers are Rated for higher inputs than your Amplifier can put out. For example, a 175 Watt amplifier is fine with speakers Rated for 240 Watts because it can never produce enough power to "blow" the speakers.

Just putting in heavier wires will almost certainly bow up the sub woofer if the initial problem is not solved.

Take it to a HI FI shop and get them to look at it. If they simply say "Can't repair these, buy this one", try another shop.

Sorry about the lecture.

Good luck.