H15 Shutting Off

[cdub]

My newly installed APC H15 PC is shutting off/on while watching movies with heavy LFE @ loud volumes (105-110 db), specifically the emergence scene in War of the Worlds & when the Joker shoots the RPG at the Armored Truck in The Dark Night trip it when the volume is up.

The "Line OK" light, which used to me on, is no longer lit on the H15. I am able to listen to sustained loud music (entire Aenima disc @ 105+ db) without issue. The overload light is not lit, and the most I see the draw is ~65%.

If I turn it down a db or 2 on the receiver it works fine, any ideas? The only units being powered by the H15 when it happens are the Z7, PS3, 2 DVR's and wireless ethernet bridge. It isn't a circuit breaker, I checked, and the H15 comes right back on after it shuts off.

cw

 

[lsiberian]

My newly installed APC H15 PC is shutting off/on while watching movies with heavy LFE @ loud volumes (105-110 db), specifically the emergence scene in War of the Worlds & when the Joker shoots the RPG at the Armored Truck in The Dark Night trip it when the volume is up.

The "Line OK" light, which used to me on, is no longer lit on the H15. I am able to listen to sustained loud music (entire Aenima disc @ 105+ db) without issue. The overload light is not lit, and the most I see the draw is ~65%.

If I turn it down a db or 2 on the receiver it works fine, any ideas? The only units being powered by the H15 when it happens are the Z7, PS3, 2 DVR's and wireless ethernet bridge. It isn't a circuit breaker, I checked, and the H15 comes right back on after it shuts off.

cw

Subwoofers can cause lots of issues for Power Conditioners and I'm sure the H15 is no different. I suggest plugging your subwoofer into a standard APC power strip instead. It's actually better to have the sub and other equipment isolated. Subs require a lot of power.

 

[TLS Guy]

My newly installed APC H15 PC is shutting off/on while watching movies with heavy LFE @ loud volumes (105-110 db), specifically the emergence scene in War of the Worlds & when the Joker shoots the RPG at the Armored Truck in The Dark Night trip it when the volume is up.

The "Line OK" light, which used to me on, is no longer lit on the H15. I am able to listen to sustained loud music (entire Aenima disc @ 105+ db) without issue. The overload light is not lit, and the most I see the draw is ~65%.

If I turn it down a db or 2 on the receiver it works fine, any ideas? The only units being powered by the H15 when it happens are the Z7, PS3, 2 DVR's and wireless ethernet bridge. It isn't a circuit breaker, I checked, and the H15 comes right back on after it shuts off.

cw

The peaks must be drawing enough current to overload it. Power signals have phase angles, so there is a true power draw and an apparent power draw. However the current for the apparent draw has to be provided instantaneously. This is what VA ratings and continuous power in watts is all about. When using any device like you describe it must be able to meat the total load in VA and continuous watts. I can bet that under the conditions you describe the VA rating is not met by your APC H15 conditioner.

 

[cdub]

Subwoofers can cause lots of issues for Power Conditioners and I'm sure the H15 is no different. I suggest plugging your subwoofer into a standard APC power strip instead. It's actually better to have the sub and other equipment isolated. Subs require a lot of power.

The sub is on a separate outlet on an APC power strip, they are likely on the same circuit though, I will have to test that and perhaps get another circuit run for the sub.

 

[Adam]

cdub, your post states that you don't have the sub plugged into the H15 when this is happening. I'm wondering what is drawing so much current with LFE. The only thing that makes sense to me is the Z7, but I don't know why unless you are sending a lot of bass to your other speakers.

Is the Z7 plugged into the "AMPLIFIER" outlet on the back? That and the subwoofer outlet are supposed to be high current outlets.

EDIT: Ahh, you posted right before me and confirmed the first sentence.

 

[TLS Guy]

cdub, your post states that you don't have the sub plugged into the H15 when this is happening. I'm wondering what is drawing so much current with LFE. The only thing that makes sense to me is the Z7, but I don't know why unless you are sending a lot of bass to your other speakers.

Is the Z7 plugged into the "AMPLIFIER" outlet on the back? That and the subwoofer outlet are supposed to be high current outlets.

EDIT: Ahh, you posted right before me and confirmed the first sentence.

Common myth here Adam!

Setting a speaker to small and crossover over at 60 or 80 Hz, off loads the receiver very little. Most of the power is in the range of 80 to 400 Hz. With most speakers that frequency range takes 2/3 of the amp power.

The range around 30 to 100 Hz coincides with the tuning impedance peaks of most speakers, and so that region does not actually pull much power from the receiver with most speakers.

 

[Adam]

Thanks for the info! I didn't know that.

I was thinking more along the lines of the LFE track (because the OP mentioned LFE), though, which should only go to the sub unless the receiver is set up to also send that signal to the front speakers. At least, that's my impression.

 

[Rickster71]

The sub is on a separate outlet on an APC power strip, they are likely on the same circuit though, I will have to test that and perhaps get another circuit run for the sub.

Absolutely, it sounds like you've answered your own question.

I recently moved my sub across the room. It already had a dedicated 20-amp circuit, and I ran another one to it's new location.

Since I unplug my sub after every movie, I don't bother with a surge protector for it.

 

[lsiberian]

Common myth here Adam!

Setting a speaker to small and crossover over at 60 or 80 Hz, off loads the receiver very little. Most of the power is in the range of 80 to 400 Hz. With most speakers that frequency range takes 2/3 of the amp power.

The range around 30 to 100 Hz coincides with the tuning impedance peaks of most speakers, and so that region does not actually pull much power from the receiver with most speakers.

Very interesting. That isn't surprising.

 

[ThA tRiXtA]

Just on a side note, if you scroll through the APC screen read out by pressing setup, you can see various data on your power usage. It will show voltage in / voltage out, VA out and amps too I believe. I think it will also show you a % of how much headroom you have left.

Good luck with your problem friend.