Axiom Home Page Forums General Discussion Advice from Axiom Owners 500 question / problem

When you have the sub set at 75 db, what is the actual LFE channel in the receiver set at? I know with my SVS they stated to try not to have it below 1/4 of the range (mine for example goes from -12 to +12, so don't have it below -6) because sometimes this will not allow the sub to be triggered out of sleep mode. They say it is better to turn the sub itself down a touch and move the LFE level in the receiver to a more neutral position.

Worth a shot if you are in the lower end of the range.

The sub turns on when it gets an input signal. If the input signal is too weak to detect properly the sub won't turn on. So you can boost the input by turning up the sub level on the receiver. Though, as pointed out above, you'll need to turn down the volume on the sub to keep the over-all output level the same as before.

One thing I've noticed with my Sony sub: the turn-on level is higher than the minimum output level--it's possible for the sub to play a signal, once it is on, that wasn't loud enough to turn it on in the first place. That is, I can play some part of a passage without triggering the sub. But something louder comes along, and the sub now does power up. If I go back and play that previous part I will hear some output from the sub.

I probably should set my receiver somewhere between +1.5 and +3, but I fear if I'm ever listening higher than -10 dB that I might start clipping the output driver for the sub. (That fear is pretty unfounded though, as I don't listen any louder than -12 dB at the craziest of times, and if I was that hot, and there was LFE content which was mixed at -0 dB, I'd be diving for the remote, to cut things back).

Set your receiver to +3, and then calibrate again with the meter only adjusting the volume knob on the sub to get it to 75 dB.

That does sound like there's an actual problem with the sub's amp. Probably want to report that information specifically to Axiom. That no matter how loud the LFE plays the sub won't turn back on, unless it is completely power cycled.

Definately a weird one, but we'll get it figured out.

If you physically turn the sub on, with no info being sent to it, (say TV off) and then turn on one of these heavy bass scenes, does it work properly? If so, it's clearly an issue with it being triggered out of sleep mode which could be be either the sub (likely), the receiver (doubtful), or just a receiver setting.