My CA-3554 speakers do not turn on

If you remove the signal cable from the amplifier while the Sub is switched on (turned down about half way) you should hear a thump sound. If you do that proves that your sub is working and you need to look at your Yamaha. Perhaps the sub channel has been disabled in the logic settings. Check the speaker configuration pages. If all looks well reset your amp to factory settings and try again. I have had a logic glitch which was fixed in this way.

blown sub if it sounds liek a cracking, with sub off, gently press the sub in, if you hear noise, its dead

Neither the amp or the sub have grounded power cords.

I have discovered the ML Dynamo takes about 30 minutes to switch to standby in auto mode.

With speaker level inputs connected to the Onkyo A807 amp, both units powered from the same wall outlet, Dynamo sub on Auto, the sub hums for about half an hour after the Onkyo is switched off, then the sub goes quiet. Not so good.

I connected a bonding wire between the two units on 3_7_09. If I smoked some old audio gear I could just look at that as an opportunity, right?

Works fine. Now I have the ML powered from the wall and working normally.

fusion h/u ca-cd500

well if your getting sound out of your surround speakers then the sub is busted, if your getting no sound at all then your speaker input's are either bad or out... i would test the speaker inputs...

You should try to increase with remote of your yamaha the sound level for sub.In my Pioneer receiver I can increase level from minus 10 to plus 10 DB

MAKE SHURE YOU HAVE TOLD THE AMP YOU HAVE A SUB IN THE SET UP MENU UNDER SPEAKER SETTINGS.
IFF YOU ARE USEING SMALL SPEAKERS THEN SET THIS IN THE MENU AND OUT PUT BASS 2 SUB ONLY ,SET XOVER ON AMP IFF U CAN 2 120HTZ, ALSO CHECK THAT YOU HAVE THE SUB CABLE PLUGED INTO SUB OUT ON BACK OF YOUR AMP ,AND NOT THE 6 CHANNEL INPUT.
HOPE THIS HELPS.

CABLE GUY.

Actually. I don't think you have to wire a remote switch from the radio to the amp on this product. This powered subwoofer supposedly has automatic signal sensing turn-on circuitry. I have the same problem. So I think I'll try to just hook up the power (to the battery), ground and the + / - speaker wires to one of the back speakers in the car and see if that works.

since it still thumps i suspect the speaker is ok, but i suspect you have an electronic problem in the amp. since it is a powered sup & has the ability to auto turn on it has electronic circuits inside, take it to a service center for an estimate

I was face the same problem 2 year's ago.This problem occur when you move the speaker's here and there.at that time speaker's wire diconnected in inside...please check the whole wire by electricians for where exactly it is disconnected...