I own the EP500 V4, and the amp just turns off for no reason. I can simply let it sit with the gain turned all the way down, and it will eventually turn itself off. I am now certain after many days of testing it has something wrong with it.

Has anyone ever had to get something repaired? What is involved? I mean I cannot image trying to send the whole unit back, so do they have local dealers? Or can they send out the piece, and then have the end user swap it out.

An information of how this is done would sure be greatly appreciated.

They typically send out the piece. In the rare instance where they replace the whole sub, I believe they pay for the return shipping. I could be misremembering this.

That's great, Ken! I'm going to start using it right away. I misremembered the correct answer. I misremembered my wallet, officer. I will never again have to say I was wrong! How pissah!

Contact Axiom they make it as quick and simple as possible.
I had a bunk driver last year they replaced it right away.
Really easy.

Thank you all for the information. I was hoping to never have to test the support aspect, but stuff happens.

Assuming of course that by "turning off" you mean the sub is in use when it turns off regardless of gain setting. Then yes call Axiom.
Otherwise the subs do go into standby mode when not in use.

Wouldn't no gain on the sub also be the same as turning it off.
Sending it to standby after say 5 or 10 minutes the same as no signal.

For the list price at Axiom you'd think they would include the now standard auto on/ off feature. My SVS sub only powers up on signal and goes to standby after a time after no signal. No gain in your system should put your sub into standby mode according to what I've read but that that still doesn't adress Chesseroo's comment. Does it turn off with signal?

The 500 doesn't have auto on/off. It has a 12v trigger though.

From the EP-500 owner's manual ...

The subwoofer has an instantaneous standby mode that enables itself whenever there is no signal input from your A/V receiver or preamp. The Green LED POWER indicator does NOT change color when the subwoofer enters its idle mode, however power consumption is reduced to 10 watts or less. Leave the switch at the ON setting unless you go away for an extended period. Moving it to OFF will shut down all power to the subwoofer.

Yes the sub woofer will go into power saving. The reason I put the gain down was to limit the sub to a very light work load. It was barely audible. This way I could see if it was just too much load on the amp the way I had it.

The sub eventually heated up like it was under load, and turned off. There is a little LED inside the amp, that you can see through the slits, and that turned red and the sub stopped. It took a few hours, but it definitely shut off.

Blatisi:

1. Your amp is almost surely in need of replacement, and if you are willing to do the swap, Axiom will likely send you a replacement unit rather than do shipping both ways on the entire subwoofer. You would be saving them money. They will appreciate the efforts.

2. I posted the quote from the owner's manual to clarify whether or not the amps had an "auto stand by" mode. They do.

After you call them, please post what you thought of the experience of dealing with the issue.

I will post what ended up causing this, when I finally get in touch with support. I have been calling, but I have not been able to contact them as of yet.

Craig, I don't think the new amps have a standby feature. If they do, it's not described in the manual I found on the EP500 page.

Monday was a holiday for most of Ontario, so you should have better luck Tuesday onwards.