receiver making a pop when turning off - Blu-ray Forum

OMH · 09-21-2009, 01:27 AM

my receiver is making a little pop through my front speakers and subwoofer when i shut it off.i have it hooked up to a power conditioner and i bring the volume down to 0 before i shut it off.what is causing the pop and could it damage my speakers?

FreddieFerric · 09-21-2009, 01:34 AM

Sounds like a grounding issue. Have you made any changes/additions to your setup recently?

OMH · 09-21-2009, 01:39 AM

i moved my ps3 from behind my tv to where my left speaker is.

Big Daddy · 09-21-2009, 01:42 AM

Don't worry about it too much. Some amplifiers do that. When you turn them on or off, they make a popping sound. The built-in amps in my Def Tech super tower speakers make that sound. When I turn them off, they make a popping sound in their buil-in subwoofers.

My two-channel Carver TFM-45 amplifier does the same. The popping sound is louder when I turn it off than when I turn it on.

I have owned the Def Tech super tower speakers since 1996 and the Carver amp was purchased in 1991. My speakers haven't been damaged yet.

All my amps (with the exception of Cinepro amp) are connected to power conditioners. They may the popping sound with them or without them.

OMH · 09-21-2009, 01:57 AM

the pop is coming trough the tweeters and it just started doing this about 2 weeks ago.can it damage them?

Big Daddy · 09-21-2009, 02:25 AM

Quote:

Originally Posted by OMH

the pop is coming trough the tweeters and it just started doing this about 2 weeks ago.can it damage them?

If the problem was always there, I wouldn't worry about it. However, if it is a new problem, then it could be due to ground hum or other noises in your system. Try by separating the wires from each other. Use shielded RG6 cable for your subwoofer. Double check all wires and cables and make sure there are no shorts in the system. If it only happens when you turn the system down, it probably won't do any damage.

Read the Ground Hum & Ground Hum Isolators thread. You may find something useful there.

Fors* · 09-21-2009, 11:55 AM

Perhaps if the auto-on was used (not sure if this sub has one) this would eliminate the pop. It sounds like you are actually turning off the sub every time. Have you tried this as a possible "work around?" If so, then I agree with BD, sounds like you need new cables or you may need a ground loop isolator.

09-21-2009, 01:27 AM	#1
OMH Active Member Member since:Dec 2007 Blu-ray reviews:2	receiver making a pop when turning off my receiver is making a little pop through my front speakers and subwoofer when i shut it off.i have it hooked up to a power conditioner and i bring the volume down to 0 before i shut it off.what is causing the pop and could it damage my speakers?

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09-21-2009, 01:34 AM	#2
FreddieFerric Blu-ray Knight Top ranked HT gallery Member since:Mar 2008 Location:NOLA Home Theater Gallery:146 4K collection:14 Blu-ray collection:238 Blu-ray reviews:7 Trading Score:1	Sounds like a grounding issue. Have you made any changes/additions to your setup recently?

09-21-2009, 01:39 AM	#3
OMH Active Member Member since:Dec 2007 Blu-ray reviews:2	i moved my ps3 from behind my tv to where my left speaker is.

09-21-2009, 01:42 AM	#4
Big Daddy Blu-ray Champion Top ranked HT gallery Member since:Jan 2008 Location:Southern California Home Theater Gallery:79 Blu-ray collection:122 Trading Score:1	Don't worry about it too much. Some amplifiers do that. When you turn them on or off, they make a popping sound. The built-in amps in my Def Tech super tower speakers make that sound. When I turn them off, they make a popping sound in their buil-in subwoofers. My two-channel Carver TFM-45 amplifier does the same. The popping sound is louder when I turn it off than when I turn it on. I have owned the Def Tech super tower speakers since 1996 and the Carver amp was purchased in 1991. My speakers haven't been damaged yet. All my amps (with the exception of Cinepro amp) are connected to power conditioners. They may the popping sound with them or without them.

09-21-2009, 01:57 AM	#5
OMH Active Member Member since:Dec 2007 Blu-ray reviews:2	the pop is coming trough the tweeters and it just started doing this about 2 weeks ago.can it damage them?

09-21-2009, 11:55 AM	#7
Fors* Moderator Top ranked HT gallery Top contributor Member since:Jan 2009 Location:Pottstown, PA Home Theater Gallery:160 4K collection:12 Blu-ray collection:142 Trading Score:11	Perhaps if the auto-on was used (not sure if this sub has one) this would eliminate the pop. It sounds like you are actually turning off the sub every time. Have you tried this as a possible "work around?" If so, then I agree with BD, sounds like you need new cables or you may need a ground loop isolator.

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