Axiom Home Page Forums General Discussion Home Theater A1400-8 Questions

Has the issue with using Audyssey on Onkyo/Integra pre-pro causing the A1400-8 to fail been fixed?

How does it compare with other Class-D amps such as D-Sonic Magnum 2500-7?

Well mine failed after a month but I use a Yamaha
Mel N.

I have an Integra DTC-9.8 pre-pro with the A1400-8. I have not used Audyssey but initially this was from personal choice. Now, I can't use it because of the reported amp failure by several users who used it. I think Axiom needs to make a statement. Either a warning that the amp should not be used with Audyssey or a fix. I think enough time has passed from the initial reports that a statement from Axiom is in order.

John

Would you be saying that this problem applies to any receiver auto set-up. The reason I ask is because if this is going to be a problem for me when I get my new amp, I better not use the auto feature. Would anyone from Axiom let me know, either using auto set-up is an issue with the amp or it is not.
Thanks
Mel N.

I've had an A-1400 for several months now without fail. I have not used Audyssey with it after the initial reports. I did my own calibration with an SP meter. (this takes about 10-15 minutes.) I'm using an Onkyo 908 as a pre-amp.

Apparently the flucutating voltage above 1.5-2v from the Audessey causes a safety shutdown of the A1400-8. This may be a common feature of some high-powered amps. Again, I never used Audyssey, by personal choice, but I wouldn't want the amp to fail if I choose to use it someday. I would greatly appreciate some official comment from Axiom on the issue.

John

I'm not sure what's causing my amps to fail. On my first two, the relays stopped engaging. I played around with Audyssey on the first amp, but I hadn't been using Audyssey for a while when it failed. The second amp failed a lot sooner with the same problem even though I didn't use Audyssey at all. My third amp came with one channel having a lot lower output than the other channels. I could calibrate it up to the correct volume, but Axiom decided to replace it anyway just to be sure. Kudos to them, but being on my third replacement amplifier has me wondering. I'm concerned about the relay problem cropping up again. But we'll see what Axiom says. As far as I know the problem could be my Integra DTC-9.8.

Maybe I'm just the new Randy of the group.

In response to the sound levels being low on your amp. How can you tell what the level is supposed to be? When I first got my system I hooked everything up to my Yamaha avr for a couple of days just to check if there would be any overheating issues. Then I hooked everything up to the A-1400. To my ear without a meter, I couldn't really tell a difference between the two (going by my avr readout). So I switch to my front two M80's and centre to the A-1400 and the two surround M80's to the Yamaha and kept it that way. I think I'll have to find an spl meter before my new amp shows, I don't need any more problems. So I ask again, How do I know if the amp is putting out (sound wise - db's) it's supposed to?
Mel N.

It's just that that specific channel was much quieter than the other 7. No matter what output from the processor was feeding it, its volume was lower. It was a very drastic difference. That channel had to be adjusted to +11 or so in the processor while all of the other channels were around -7 or -8 to get the same SPL.

Thanks for clarify it for me. I've got to get a meter before I touch my new amp. Thanks
Mel N.