Reduce the power on a subwoofer

julien_saadeh

Hello,

I recently bought a surround system which turns out to have a very powerful subwoofer, making it basically impossible to use. I need to reduce the power on this subwoofer which is 200W RMS, I think.

Do you know of any hardware (such as a big variable resistor) that I can use for this, before I decide to sell the whole thing and get a smaller one?

Thank you.

J4D

The woofer would normally have a hole on one of the sides. Stuff a sponge in there. :)

julien_saadeh

J4D wroteThe woofer would normally have a hole on one of the sides. Stuff a sponge in there. :)

But it will look ugly! The opening is in the front.

solo220

Couldn't you lower the bass channel or play with the equalizer?

ballad

What is its brand and model number?

julien_saadeh

I already have the subwoofer at -6dB.
It's a Sony DAV-TZ715

ballad

subwoofer is passive so even if you change resistors or electronic stuff the dvd part will still supply it with the same power so you should check the dvd/amplifier part
maybe the technicians of sony can override the software part in it
but in general all mainstream surrounds are not very reliable

julien_saadeh

In movies, the sound is awesome but when I'm listening to music, the Bass is very loud.

But I believe that if I add a 3-Ohm resistor before the subwoofer, the Bass output will be cut in half as the impedance will become 6ohmd in total, meaning less current. Then I will be able to move the subwoofer slider higher than -6dB in the software :D

julien_saadeh

J4D wroteThe woofer would normally have a hole on one of the sides. Stuff a sponge in there. :)

Jad, i actually did that today with a pillow. It works! I guess i'm going to find a black sponge to stuff in there :D

It wouldnt hurt the subwoofer, right? The membrane will actually vibrate less when the airflow to it is blocked.

J4D

Nope, it won't do any damage :)