Stuffing in ceiling speaker boxes?

[Blakeatron]

Our new kitchen ceiling is ready for the speakers to go in.

I built 400 cubed, 18mm marine ply boxes inside the ceiling, the ceiling is fully rockwooled and acoustic plasterboard.

Back in the good old days of max power sub enclosures we used to stuff the boxes with cotton wool/insulation to get better bass.

So should I be stuffing these?

I have sonance PS-C83RT 8" speakers and there will eventually be a powered sub once I've built the cabinet for it!
For now will be running of a sonos amp but will upgrade to a full system one day

[VEX]

They already have back cans on them, which the will have been designed to work inside them. I doubt very much that adding / stuffing rockwall into your enclosures will make any change to the sound at all.

Usually car speakers and domestic in-ceiling are open backed, call infinite baffel from memory, lining an enclosure can help in these cases.

As a side note, have you seen how deep those things are! I hope you have deep ceiling voids!

V.

[Blakeatron]

Cheers vex - wise words as always.

I have 400mm height - more than enough!

[chasingracecars]

Think of using these in the kitchen and any areas where there is a bedroom above and you want less sound to travel up.

http://www.hoody-speakerhoods.co.uk

I think these are a requirement in listed commercial builds.

[paralla]

I have closed back 6" speakers in my kitchen and bathroom ceilings powered by Sonos Connect Amps. Mine are straight in the plasterboard, no fabricated boxes in the ceiling. The back of the speaker is already sealed so your boxes are a bit redundant. Defo no point in stuffing them.

For what it's worth I barely get any sound leakage to rooms above and I don't have any hoodys. The speaker itself maintains the fire rating of the ceiling because of the closed back design. Mine are UL 94 V0 fire rated. Someone will be along shortly to tell me I'm risking the lives of family members because I don't have hoods but I sleep just fine.