Axiom Home Page Forums General Discussion Home Theater Faulty Cable?

I would suspect your sub out level from the AVR might be a tad low. I know when I first enabled auto on for my EP350 it did not work. When I hooked up a BFD and was able to measure the output level, it was very low. When I bumped it auto on worked flawlessly.

Rob, Fred's suggestion of raising the sub out trim level on your receiver should certainly be tried. At the present setting the voltage may be marginal to "wake up" the sub amp and more voltage may make it more reliable. The level setting on the EP500 should be lowered in compensation so that the overall level isn't changed.

I agree with raising the subwoofer pre-out trim level. This will make the auto/on feature more stable as described above by JohnK.

You were able to read through my entire 27 page thread on your lunch break? Good God man where do you work? I want a lunch break like that!

Maybe Rob took one of them speed-reading courses. I did and was able to read War and Peace in a hour and a half(it had to do with Russia).

You will have to excuse my ignorance and I am at work without access to the manual....the sub out level/trim - the only thing that I have tweaked/touched is when I was setting speaker levels with my sound meter. Is that what you guys are referencing?

I have been e-mailing with JC at Axiom. He suggests that the rca jack is damaged or faulty. It does not appear damaged but the connection is loose. Meaning that the plug slides in and out very easily - just does not feel solid. His remedy is to plug into the output jack? Apparently the output will act as an input? At any rate, the plug/unplug - on/off routine that I did Friday night turned the sub back on and so far it is working as it should. I will look in the manual tonight to see if I can discern what ya'll are talking about on the trim. Thanks for the suggestion.......Rob

Valedictorian of Evelyn Wood - class of '85

Rob, yes the sub output trim is the receiver setting that has a range of generally about +/- 12dB and which varies the amount of voltage that goes in to the input on the sub and "wakes up" the sub amp. You can try setting it at a + level(but not at the maximum)and reducing the level control on the sub itself to keep the loudness calibration the same.

Yes, plugging into the low level output on the sub has the same result as plugging into the input. They make up an internal "Y" and the signals can reach the sub amp just as well when they travel down the output branch of the Y.

Amazing. I had no idea that the Y existed. So far, So good. I still have the bass. I think that JC was confused by my description of the RCA jack. He told me to be careful not to break the jack off if it was loose. I told him the jack itself is fine it is the connection between the RCA cable end and the jack that seems loose to me......

..... you said 'jack-off'!