Okay to leave subwoofer on all the time? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 25 Old 12-19-2016, 05:57 PM - Thread Starter
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Okay to leave subwoofer on all the time?

Just wondering what most folks do here about subs that don't have auto on/off (or if it's faulty)?

Okay just to leave the sub on all the time? I was thinking of getting one of those surge protectors that can turn off connected devices based on a main device (which in this case would be the receiver), but that basically would be equivalent to yanking the plug out from the sub each time it turns off -- not sure if that's so great for the electronics.

I can't expect the sub to be drawing much power while off, besides a tiny bulb... but I typically don't like to leave devices on for no reason either.
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post #2 of 25 Old 12-19-2016, 05:59 PM
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i leave all mine on auto. no issues yet and 2 of the subs 15+ years old
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post #3 of 25 Old 12-19-2016, 06:18 PM
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I leave all my equipment on all the time, also @ very low volume.
It's not good to turn components on & off. Also keeps my cables burt in! Just my $.02
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post #4 of 25 Old 12-19-2016, 06:56 PM
 
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Quote:
Originally Posted by danmar123 View Post
It's not good to turn components on & off.
Myth. But as to the OPs question, I leave my sub on all the time, for the same reason. It's been on for around ten years, maybe more, I've lost track.
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post #5 of 25 Old 12-19-2016, 07:27 PM - Thread Starter
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Quote:
Originally Posted by danmar123 View Post
I leave all my equipment on all the time, also @ very low volume.
It's not good to turn components on & off. Also keeps my cables burt in! Just my $.02
Thanks for the replies.

My concern wasn't turning the sub (or any devices) on/off, just doing it in a weird way by using an auto on/off surge protector ... which is the same as if I pulled the cord each time I wanted to turn it off. I read somewhere that for newer devices that may not even be so bad, just not sure if old subs would like it very much.

Guess it's not a big deal to just keep the sub on all the time, so I'll keep it as-is. Alternatively I may be able to hook it up to the back of my receiver (I need to check back there if it has a plug-in), but again that is still a 'pull the cord' type of deal as far as power goes.
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post #6 of 25 Old 12-19-2016, 08:08 PM
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Quote:
Originally Posted by Doe Doe View Post
Thanks for the replies.

My concern wasn't turning the sub (or any devices) on/off, just doing it in a weird way by using an auto on/off surge protector ... which is the same as if I pulled the cord each time I wanted to turn it off. I read somewhere that for newer devices that may not even be so bad, just not sure if old subs would like it very much.

Guess it's not a big deal to just keep the sub on all the time, so I'll keep it as-is. Alternatively I may be able to hook it up to the back of my receiver (I need to check back there if it has a plug-in), but again that is still a 'pull the cord' type of deal as far as power goes.
If your handy, you can put an inline on/off switch in.

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post #7 of 25 Old 12-19-2016, 08:17 PM
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The only problem I can imagine is the possibility of a voltage surge during a lightning storm which might damage the subs' amp.

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post #8 of 25 Old 12-19-2016, 08:56 PM - Thread Starter
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Originally Posted by dswierenga View Post
The only problem I can imagine is the possibility of a voltage surge during a lightning storm which might damage the subs' amp.
Wouldn't a regular surge protector help with that?
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post #9 of 25 Old 12-19-2016, 09:01 PM - Thread Starter
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Originally Posted by danmar123 View Post
If your handy, you can put an inline on/off switch in.
My sub has an on/off switch. Just not an auto one. It'd be a major pain to turn it on and off manually each time I wanted to use it, which is why I was wondering about an auto surge protector thingy. Apparently it's not needed, okay to just leave it on.
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post #10 of 25 Old 12-19-2016, 11:46 PM
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I accidentally put my sub to on istead of auto when I moved it into the bedroom. Stayed that way for months before I realized what I'd done. Never had any issues with the sub.
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post #11 of 25 Old 12-20-2016, 03:29 AM
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Quote:
Originally Posted by Doe Doe View Post
My sub has an on/off switch. Just not an auto one. It'd be a major pain to turn it on and off manually each time I wanted to use it, which is why I was wondering about an auto surge protector thingy. Apparently it's not needed, okay to just leave it on.
Now I got it. I have my subs connected to a Panamax MD2.It has a $100,000.00 equiptment policy.

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post #12 of 25 Old 12-20-2016, 04:55 AM
 
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Originally Posted by dswierenga View Post
The only problem I can imagine is the possibility of a voltage surge during a lightning storm which might damage the subs' amp.
You're more likely to be hit by lightning than for a surge to damage the amp.
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post #13 of 25 Old 12-20-2016, 05:29 AM
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Originally Posted by Bill Fitzmaurice View Post
You're more likely to be hit by lightning than for a surge to damage the amp.
But it does happen. A storm took out my DefTech sub amp, a Denon integrated amp, and my garage door opener. Sad day. Still waiting on being struck myself though.
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post #14 of 25 Old 12-20-2016, 08:56 AM
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If the equipment has an auto function, I'll use that. Otherwise, I like to turn my equipment off when not in use.

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post #15 of 25 Old 12-20-2016, 12:07 PM - Thread Starter
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Originally Posted by Bill Fitzmaurice View Post
You're more likely to be hit by lightning than for a surge to damage the amp.
I would think a regular surge protector should protect the equipment anyway... I mean, that is what surge protectors are for. If the device is on or off at the time... well, I suppose ideally it'd be off (or disconnected completely), but the odds of a surge breaking stuff would seem to be pretty rare to begin with, and even more so using a surge protector.
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post #16 of 25 Old 12-20-2016, 12:39 PM
 
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Originally Posted by Doe Doe View Post
the odds of a surge breaking stuff would seem to be pretty rare to begin with, and even more so using a surge protector.
A surge protector is effective, but only against surges that generally wouldn't bother most audio gear anyway. At least they're cheap enough that there's no reason not to use them. They're ineffective against a major incident, like a lightning hit, where they'd get toasted along with everything else. The reason why you see big buck 'insurance' policies with these things is that their manufacturers know that the possibility of any gear attached to them being damaged is literally about the same as you getting hit by lightning. They're playing the odds, and the house always wins.
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post #17 of 25 Old 12-20-2016, 01:13 PM
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Subwoofers that have auto function shut down the amp anyway. So technically it is shut down.
Now the ones that don't can be a bit problematic. I had this Jamo sub that would make a buzz as well as get hot. I shut that down. It does have a massive heatsink at the bottom but still. It's an old Jamo SW600.
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post #18 of 25 Old 12-20-2016, 11:32 PM - Thread Starter
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Originally Posted by jasonsong View Post
Subwoofers that have auto function shut down the amp anyway. So technically it is shut down.
Now the ones that don't can be a bit problematic. I had this Jamo sub that would make a buzz as well as get hot. I shut that down. It does have a massive heatsink at the bottom but still. It's an old Jamo SW600.
I was referring to subs without an auto function, as otherwise that would be easy to figure out, just set it on auto and forget about it (assuming the auto function works, read a lot of times it can be flakey with some subs).

My sub is old and doesn't have an auto function, just on/off. I got it dirt cheap, so it's not a huge deal if the thing breaks -- and it's only so-so to begin with -- but I didn't want to accidentally hasten its demise by hooking up an auto on/off surge protector to it, if that could mess it up somehow. I believe the thing has been on for like a decade+ straight... so long as it's not gobbling up electricity, I'm fine with just letting it chug along as it has been.
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post #19 of 25 Old 12-21-2016, 12:39 AM
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Let's look at it in simpler ways;

1) If you're going to be using it everyday, leave it on all the time.
2) If you're only going to use it once a week/month/year, then well... you know what to do.
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post #20 of 25 Old 01-26-2019, 08:00 AM
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Originally Posted by Ben Tan View Post
Let's look at it in simpler ways;

1) If you're going to be using it everyday, leave it on all the time.
2) If you're only going to use it once a week/month/year, then well... you know what to do.

Thank you. Just purchased a new sub woofer and where I have it positioned it's a bit difficult to access the power switch. Now I can leave it on without worry
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post #21 of 25 Old 01-26-2019, 10:51 AM
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Thank you. Just purchased a new sub woofer and where I have it positioned it's a bit difficult to access the power switch. Now I can leave it on without worry
if you have the auto on switch use it imo.. it saves on the amp being on all the time , which*may" help prolong amp life and save a little bit of electricity..

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post #22 of 25 Old 01-26-2019, 11:01 AM
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Originally Posted by Doe Doe View Post
Just wondering what most folks do here about subs that don't have auto on/off (or if it's faulty)?

Okay just to leave the sub on all the time? I was thinking of getting one of those surge protectors that can turn off connected devices based on a main device (which in this case would be the receiver), but that basically would be equivalent to yanking the plug out from the sub each time it turns off -- not sure if that's so great for the electronics.

I can't expect the sub to be drawing much power while off, besides a tiny bulb... but I typically don't like to leave devices on for no reason either.
imo , it won't hurt anything to toggle it off at the end of use. i honestly believe *heat* is the enemy not current on/off.. it's all myth & magic.. everybody that chimes in will have anecdotal tales that will back up *their* thoughts...if you took actual studies ,1/2 the people on here would dispute it.. as a matter of fact i don't think it's worth worrying about with budget electronics...
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post #23 of 25 Old 01-26-2019, 11:12 AM - Thread Starter
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imo , it won't hurt anything to toggle it off at the end of use. i honestly believe *heat* is the enemy not current on/off.. it's all myth & magic.. everybody that chimes in will have anecdotal tales that will back up *their* thoughts...if you took actual studies ,1/2 the people on here would dispute it.. as a matter of fact i don't think it's worth worrying about with budget electronics...

Thanks, although this is a really old thread of mine, over 3 years old... took me a while to even remember what sub I was referencing.

On my main (old) sub, I'm not entirely sure why, but auto on/off kind of kicked in for it when I changed receivers. There isn't a switch for it, but it just sort of magically became active. Maybe my old receiver was giving it a low level signal for some odd reason and kept it in 'on' mode, not sure. A combination of audyssey/settings and minor position changes (nudged it away from the wall) also improved the sound with it too... can't say it's great (not like I even know what a 'great' sub sounds like) but I can say it beats mediocre subs (Bic, etc).

On my secondary setup, I just use an on/off power bar, as it's mostly for gaming/occasional streaming, and I just turn that sub and the avr off at the same... mostly out of habit.
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post #24 of 25 Old 01-26-2019, 11:14 AM
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Originally Posted by Doe Doe View Post
Thanks, although this is a really old thread of mine, over 3 years old... took me a while to even remember what sub I was referencing.

On my main (old) sub, I'm not entirely sure why, but auto on/off kind of kicked in for it when I changed receivers. There isn't a switch for it, but it just sort of magically became active. Maybe my old receiver was giving it a low level signal for some odd reason and kept it in 'on' mode, not sure. A combination of audyssey/settings and minor position changes (nudged it away from the wall) also improved the sound with it too... can't say it's great (not like I even know what a 'great' sub sounds like) but I can say it beats mediocre subs (Bic, etc).

On my secondary setup, I just use an on/off power bar, as it's mostly for gaming/occasional streaming, and I just turn that sub and the avr off at the same... mostly out of habit.
lol , i didn't even check the dates since it was up hi on the 1st page... my bad...

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post #25 of 25 Old 01-26-2019, 11:20 AM - Thread Starter
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lol , i didn't even check the dates since it was up hi on the 1st page... my bad...
I've done that too. I remember writing up a long response to someone a while back, and right before I hit submit I thought the topic seemed oddly familiar. Then I check the date and it was like a 5 year old thread that someone revived... an odd thread that got brought back from the dead a couple of times.
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