LOSS OF BASS IS THERE A FUSE IN THE RECEIVER FOR THIS

You need to determine if its a malfunction of the sub or just due to a loss of input. And is it always in response to, say, over-enthusiastic use?

From the manual...

TROUBLESHOOTING

If you used the high-level (speaker) inputs and there is no sound from any of the

speakers:

• Check that receiver/amplifier is on and a source is playing.

• Check that powered subwoofer is plugged into an active electrical outlet and is switched on.

• Check all wires and connections between receiver/amplifier and speakers. Make sure all wires

are connected. Make sure none of the speaker wires are frayed, cut or punctured.

• Review proper operation of your receiver/amplifier.

If there is low (or no) bass output:

• Make sure the connections to the left and right "Speaker Inputs" have the correct polarity (+ and -).

• Make sure that the subwoofer is plugged into an active electrical outlet and switched on.

• Adjust the crossover point.

• Flip the Phase Control switch to the opposite position.

• If you are using a Dolby Digital/DTS receiver or processor, make sure that the

subwoofer adjustments on the receiver/processor are set up correctly.

• Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass.

If you used the line-level inputs and there is no sound from the subwoofer:

• Check that receiver/amplifier is on and a source is playing.

• Check that powered subwoofer is plugged into an active electrical outlet and is switched on.

• Check all wires and connections between receiver/amplifier and subwoofer.

Make sure all wires are connected. Make sure none of the wires are frayed, cut or punctured.

• Review proper operation of your receiver/amplifier.

• Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass.

• Make sure that you have configured your receiver/processor so that the subwoofer/LFE output is on.

Lets check the simple stuff first. Check the speaker calbes and make sure that they are both hooked up the same way. If you have colored cables, then make sure that both "red" (for example) wires are connected to the positive(+) terminal of the speakers. If you have one to + and one to -, you will get sound out but lose the bass. This is because the speakers will be out of phase. This is the most common cause of the loss of bass response.

If that does not resolve the problem, please check with headphones to confirm that the problem is with the amp and not the speakers. Update this with your results.

Thanks,
Dan

Fill in the blanks about the working receiver.

You mention another subwoofer, which suggests your receiver manages the bass and possibly sends most or all of it to the sub.

If it's NOT sending the bass to the speaker terminals you use to drive the AM5 that would explain it's virtually silent bass module.

If those speaker terminals on your receiver can be set to LARGE, do it. Otherwise they assume the speakers are incapable of handling bass.

wow! check this out
you can find some info here
http://www.humminbird.com/

This sounds more like a power supply problem. I would have the voltaeg regulators checked along with the filter capacitors in the power supply area.

Dan

same here. happened after moving residences

That's one correct assumption, but it's actually the element that gets damages causing the coil to rub. Open the top up and see if there is any damage, sung a magnifying glass as the tiniest crack could go un-noticed by the naked eye.

In testing these 2 did you change the frequency at all? trying with a different receiver, having another mic on the "bad" mics frequency?

Loss of lows can also be a sign of a bad wire as this sometimes tend to act as a high pass filter.

Did you do the obvious, change batteries?

jeff

Hi there, I would think that you have blown your bass drivers in the speakers. Sometime you may have a fuse which is blown in the speaker but this is not usual. Try on another speaker if you can.