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Subwoofers.....Leave On/Off?

I run dual Sunfire Sub Juniors in one of my A/V system and really like what they bring to the game.
They are connected to independent power strips, which I use to turn them on/off since they lack the
auto on/off feature most subs now have. Both subs emit a sizable thump when I power them up/down,
making me wonder if I'm doing more harm than good by not leaving them on full-time.

My monthly power bill reflects the amount of equipment I have plugged in throughout my home, so I'm
trying to lighten the load, so to speak.
discnik
batman1971
96 posts
 
My dunlavy sub amp just went out a few months ago.  It’s been always on since 1994.   It does notspin the power meter  very much at idle.  I just use an external amp with it now.  My 2 class a amps ,on the other hand, add over 100 per month to the electric bill
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lonemountain
461 posts
 
discnik

The thump you hear is likely discharge of capacitors in the power supply and causes no harm, nor is it a sign of something wrong.  I am associated with a company that manufactures monitors that do the same thing, and I have had long discussions about it.  The normal way to prevent the thump is to use turn on/turn off muting circuits, such as a relay, which in some cases engineers feel affects the sonics.  In other cases they say it's one more thing to go wrong.  Connecting the driver to the amp without power on/off muting is a choice and not an oversight.  It does sound a bit alarming but isn't a worry!

Brad  
jj77's avatar
jj77
24 posts
 

How did you hook up A second  sub

 

T

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