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  1. #1

    Member Sales Rating: (0)

    Join Date
    Jul 2006

    Default Allways on vs Auto on

    I was wondering what the advantage to using Auto on vs Allways on is for powered subs. I would not think the amp is doing much if there is no signal even when always on, but I could be wrong. It does seem to me though that on/off cycling is bad for all electronics so would it be better to use allways on and save wear and tear on the amp section of the sub?

    Anyone know anything about this?


    Denon AVR4806CI
    Denon DVD3930CI
    Panamax 5500-EX
    Polk LSi25 mains/subs
    Polk LSiC center
    Polk LSi9 Surrounds on Custom Skylan stands
    Mitsubishi WD-65831
    Audio Art IC-1 Interconnects
    Audio Art SC-5 Speaker Wire

  2. #2

    Member Sales Rating: (13)

    Join Date
    Aug 2003
    Exit Seventy-three on the LIE


    I used to leave my PSW450 on all the time, but the heatsinks were always
    warm to the touch even in standby mode, so I now plug it into a switch controlled outlet, and it's only on when the rest of the system is on.
    From what I understand, leaving the sub on all the time will ensure no dropoffs or delays whenever a DVD or CD is played, but I can't imagine it would make that much of a difference if left in standby? I doubt there is much wear and tear on the amp, but I could be wrong about that. I would say leave it in standby though; it's not really "on" til a signal is received.

  3. #3

    Member Sales Rating: (58)

    Join Date
    Feb 2003
    6 Underground


    I've run subwoofers both ways and never noticed a difference in lifespan or performance. I currently use "Auto-On".

  4. #4

    Member Sales Rating: (0)

    Join Date
    May 2004
    Poughkeepsie, NY


    I always leave my sub-woofer on, because I don't always have a strong enough signal to trigger the auto-on. I do a lot of low volume listening, and my normal sub-woofer level is -7 (gives me the freedom to temporarily boost the sub-level up using my remote).

  5. #5

    Member Sales Rating: (0)

    Join Date
    Mar 2006
    deptford nj


    i keep my subs in the always on position....sometimes im not listening loud enough to activate my subs....turn it up a bit and boom my sub comes on...hate when that im always ON
    Yamaha RX-V2600
    Adcom GFA555 x 2 :D
    Yamaha CD685 cd changer
    Yamaha Dvd c950 dvd changer
    Polk RTi12 mains
    Polk CSi3 center
    Polk psw303
    Polk RTi6 (surround and surround back)
    Acoustic Research 12in 200 watt sub(8 years old and still hits hard:D)
    WindyWillys cooling fan (works great)
    Mitsubishi 52in big screen
    blue jeans cables
    AR interconnects

  6. #6

    Member Sales Rating: (0)

    Join Date
    Jul 2006


    Interesting, I didn't realize that low volume could lead to them not coming on in the "auto on" position. Thanks.

  7. #7

    Member Sales Rating: (10)

    Join Date
    Dec 2005
    Safely in my Faraday cage


    Is there a switch like this for the fairer sex?

  8. #8

    Member Sales Rating: (2)

    Join Date
    Aug 2003
    BC, Canada


    Quote Originally Posted by SKsolutions
    Is there a switch like this for the fairer sex?
    Yeah there is but it works the other way around (auto off - usually caused by a gassy signal ;) )

    I think the only reason people don't use auto-on is if they have a sleepy sub (as in it shuts itself off easily when listening to quiet movies or music). I personally use auto-on just because I get a little bit of hum when my sub is on and like to get rid of that persistant noise when I'm not listening to music. Either way, my amp gets warm even when I'm not using it.

  9. #9

    Member Sales Rating: (1)

    Join Date
    Apr 2005
    Patterson Cali.


    Auto on here but I do notice my Sherbourn amp stays warm, in fact my whole rack stays warm.

    If I could find a decent switched outlet for everything I would use it.
    SOPAŽ Founder
    The system Almost there
    DVD Onkyo DV-SP802
    Sunfire Theater Grand II
    Sherbourn 7/2100
    Panamax 5510 power conditioner (for electronics)
    2 PSAudio UPC-200 power conditioners (for amps)
    Front L/R RT3000p (Bi-Wired)
    Center CS1000p (Bi-Wired) (under the television)
    Center RT2000p's (Bi-Wired) (on each side of the television)
    Sur FX1000
    SVS ultra plus 2
    Thanks for looking

  10. #10

    Member Sales Rating: (18)

    Join Date
    Mar 2004


    FWIW, I use auto on, with my current set up. In the past I did have issued with a particular system, not receiving the signal on time so I left it on all the time.

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