Passive subwoofer too loud.


Hi,

I have two front speakers rated at 4 ohms and a subwoofer made by the same designer (unknown specs) that should go well with his fronts, but... the subwoofer is laughably loud.

 

The designer recently passed away so I cannot get any support. I am using the same amps to drive the fronts and the subwoofer so it should not be an amp gain issue.

The subwoofer has two 12 inch drivers. Each driver has its own inputs for speaker cable. So I am running one channel of my stereo amp (again sub has its own amp - same kind of amp as fronts) to one woofer on the sub and the other channel to the other woofer on the sub. Is that the issue ? Or,  I am wondering if the sub was internally wired in series when it should have been wired in parallel or vice versa? - Just trying to understand why it is so damned loud when the same guy designed it and knew that the amplifier that I would be using with it is a typical amp - no volume control.

I am so aggravated... hope someone can help.

brjoon1021

It could just be that the subwoofers are simply more efficient than the satellites so you will get more output from them at the same volume setting on your preamp (?) or other volume control device.   A simple fix would be to add a pair of Rothwell attenuators in front of the subwoofer amp.  There are many listed for sale on Ebay and here is an older review:  Rothwell In-Line Attenuators by George Pappas (enjoythemusic.com).   This would be a cheap and simple fix.  A better option might be a single input/output passive preamp although these would require another pair of interconnects.  The EVS or Endler Ultimate attenuators would also work nicely but may be harder to come by.  

Check out Schiit Audio. They have a small passive volume control for about $50 that should work fine to lower the signal to the subs.

You definitely want something adjustable so you can change the sub output to your liking. If you opt for a preamp with a remote you can change it from your listening position on the fly.