Love or hate speaker cabinets I made for Tannoy MG 15's

[walpurgis]

Yes - it's a shame Monacor don't sell MDM-3 anymore (75% wool). It was good because it held its shape better than wool on its own, and it didn't compress easily. Although I've been looking at wool, toy stuffing material that looks like it could be a good replacement.

I'm looking at a roll of that right now. It's been waiting on a shelf for a project .

Wool should be used pretty loose, putting it in mesh bags in the main cabinet volume works.

[fatmarley]

I'm looking at a roll of that right now. It's been waiting on a shelf for a project .

Hurry up and get building then

Wool should be used pretty loose, putting it in mesh bags in the main cabinet volume works.

Yes I should imagine it does, and it would make it easier to keep it away from the ports. Just don't make the mistake I did and stuff a load of fibreglass into tights, It compresses it too much (I hate fibreglass).

[walpurgis]

(I hate fibreglass).

I never use it. Nasty stuff.

[Denzil]

Sorry for quoting my old post, but something occurred to me. If there's a way you could loosen the back panel? (maybe it's screwed on?). Just loose enough, so the enclosure isn't airtight any more. It would be a quick and easy way to see if aperiodic helps reduce your bass problem.

That's a good idea. I'll still need some help be just moving them is difficult, I'm social distancing at the moment. Each speaker weights 143 kgs = 315 lbs each.

Regards,

Denzil

[Denzil]

Teased out long fibre wool is good for bass damping, just don't obstruct the ports.

Is that poly wool? Not sure what long fibre wool is.

Thanks.

Denzil

[walpurgis]

Is that poly wool? Not sure what long fibre wool is.

Thanks.

Denzil

It is literally long natural wool. (washed and clean obviously )

There's a place here that specialises in it: https://www.woollyshepherd.co.uk/aco...dspeaker-kits/

Although I'm sure you can obtain it locally and probably cheaper.

[Denzil]

Hurry up and get building then



Yes I should imagine it does, and it would make it easier to keep it away from the ports. Just don't make the mistake I did and stuff a load of fibreglass into tights, It compresses it too much (I hate fibreglass).

Are you talking about glass wool or fiberglass. There's a difference. I used rock wool for lining my cabinets.

Denzil

[Denzil]

I'm looking at a roll of that right now. It's been waiting on a shelf for a project .

Wool should be used pretty loose, putting it in mesh bags in the main cabinet volume works.

There's a difference between poly wool and sheep wool. And fiberglass and glass wool (the modern substitute for glass wool is rock wool). None of all this should be confused because they all have different properties and work differently in cabinets.

Regards,

Denzil

[walpurgis]

There's a difference between poly wool and sheep wool. And fiberglass and glass wool (the modern substitute for glass wool is rock wool). None of all this should be confused because they all have different properties and work differently in cabinets.

Regards,

Denzil

I know. I've been designing and building speakers (with varying degrees of success ) for fifty years.

[fatmarley]

just don't obstruct the ports.

That's why I'm not keen on the idea of an aperiodic shelf in between the driver and ports. I know it's not the same as directly blocking a port but there's something about it that doesn't sit right with me. The way I see it, it's slowing down air movement through the cabinet, and then through the port.