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  1. #1

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    Default Leaving Sub Powered?

    I have a DSW550 in my HT and just added a DSW660. The new 12 incher produces a pretty good "thomp" when it powers up on auto. I can also hear the 550 when it powers up, but just barely (perhaps because of the smaller driver). It's also volume of the system related, i.e. it gets louder if the volume is up on my avr. My avr powers up at -35 volume, but I may have to increase it to get the subs to kick in. I have a dedicated power line, don't think it's an AC related issue or the cable to avr, I've swapped it out to no avail. I've read in other threads of people have the same problem on different subs, so I'm chalking it up to the "nature of the beast". The sub works great otherwise, it's just a small annoyance really. But in some of the other threads I've read, one of the solutions put forth by a few people is to leave the power on the subs all the time. I just wanted to get people's take on here as to how they thought about that. I'm not worried about a power consumption issue at idle, I'm more concerned about sub amp longevity. Any thoughts pro or con leaving the subs on all the time? Thanks for your input....

  2. #2

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    Are sure it is not a sub problem, MY SVS or HSU does not do that.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
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    Cables: Mits S3 IC and Spk cables| PS Audio PCs

    Ofc: Wright WLA12 preamp: Anthem Amp 1: Pio Elite DV-79AVI: Airport Express: CAL Sigma II DAC: PA LS90 sonicaps and mills

  3. #3

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    What did your AVR set the sub at? It could be you have the volume knob on the sub turned up too high. You want your AVR to set the sub between +/- 5 dB. The closer to 0, the better. I would double check that number before leaving a sub always powered. Actually I would probably walk over and turn them on myself, before leaving them powered.

  4. #4

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    I leave mine powered on all the time. Mine would take a long time to pick up the signal when I had it on auto, so now I just leave it on.
    Sunfire TGP III PrePro, Sunfire Cinema Grand Signature 405wpc 5 ch. Amp, Rotel RCD-1072 CDP, Onkyo TA2600 Tape Deck, Pioneer Elite 47-A DVD, Sony 32" XBR TV, Polk RTA-8T Main Speakers, Boston VR-920 Center Channel, Boston PV-600 Subwoofer, Polk DSW 400 Subwoofer, Polk FXi-3 Surround Speakers

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    We had this thread about amps on/off ages ago .I was really surprised to learn most here left amps on and I didn't and still do not. Then I look over to my Klipsch pwrd sub that I have never shut off w/ the exception of an impending lightening strike. Does this make me a hypocrit?

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    Quote Originally Posted by leftwinger57 View Post
    Does this make me a hypocrit?
    lol.......only if your worried about your carbon footprint.

  7. #7

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    Quote Originally Posted by rpf65 View Post
    What did your AVR set the sub at? It could be you have the volume knob on the sub turned up too high. You want your AVR to set the sub between +/- 5 dB. The closer to 0, the better. I would double check that number before leaving a sub always powered. Actually I would probably walk over and turn them on myself, before leaving them powered.
    MCACC has set my subs to +1db and I'm not using "plus" in the Pioneer settings, I'm running the 660 at about 28-30 volume on a 0-40 scale. I do have a remote and can turn them on before I boot up the other stuff...if I remember. I'm getting old and....well, you know how it goes. I may drop CS here a note as well and get their take on leaving them on and on the issue of the sub itself.

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    Just a final note on this. Polk CS figures this to be the cap charging/discharging and nothing to worry about. If it bothers me, they have no qualms about leaving the sub on all the time, as long as I don't mind paying the couple bucks a year that might cost. I believe that's the route I may go, thanks for your input all...

  9. #9

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    Another option you may consider is a auto sensing/switched surge suppressor for the subwoofer. You could plug your AVR into the master outlet and put the subwoofer (set to always on) into one of the switched outlets. That way your subwoofer will be on/off with your AVR without having to worry about spending more on electricity or power on thumps during listening time.
    http://www.tripplite.com/en/products...xtSeriesID=866

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