acoustical stuffing / sound dampening subwoofer cabinet REL BRITANNIA B1 subwoofer


Hello,

 

Quick question on acoustical stuffing / sound dampening in a subwoofer cabinet.

I am the 2nd owner of a REL Brittania B1 subwoofer.

Opened it up, and NO stuffing. A bit surprising. My guess is the original who was a dumb &*(&#$   removed it.

I am guessing there should be some stuffing in the cabinet.

 

IF SO, I am looking for recommendations as to how much to put in the cabinet and where.

THANKS for the help!

Please see pictures for view of interior of cabinet. Bottom-Middle- Top pictures

 

FYI--- Interior of cabinet is approximately 13” x 15” x 19”

 

 https://drive.google.com/open?id=0B01U3HhYR3nZZUJ6U0lzZVNMYkE

https://drive.google.com/open?id=0B01U3HhYR3nZbGZNR1ktRHBOMmM

https://drive.google.com/open?id=0B01U3HhYR3nZS3kzSWpOaF9ySmM

REL BRITANNIA B1


stevethe4th

Showing 3 responses by erik_squires

Braces also decrease the internal volume. 

Honestly, if you start thinking that just put the speaker back together and make your own subwoofer. You'll be happier that way.

Best,

E
Keep in mind that adding/removing stuffing also affects the tuning of the cabinet. That cabinet looks REALLY clean, so not sure it ever had any. Stuffing will raise the effective volume, lowering the Q and lowering the tuning frequency. This Another way to put it is it will damp the response at the bottom.

Also, woofers get hot. The more stuffing, the hotter they will get and the more compression, I’m not entirely sure this cabinet ever had any stuffing at all, it looks way too clean. I would reach out to REL and ask if it used any first.

If you decide to add fill, Acousta-Stuff is a pretty good fill but for damping panels I much prefer the multi-layer Sonic Barrier to any thin membrane stuff. Comes with PSA already applied. I would start by playing music and feeling the cabinet for resonances. Apply the thickest possible Sonic Barrier there.

Then, if appropriate, lightly fill the cabinet. Make sure you do not insulate any hot areas such as internal heat sinks, metal surfaces, and leave room around the woofer for it to breathe. Woofers get hot when used, the better cooling, the less compression.

Best,

E