Placing foam underneath speakers

[Maccy]

Anyone have any knowledge on this? A proper explanation would help in terms of benefits etc.
I've just tried it with some foam that was in the Logic box and it's actually helped in terms of sound quality, strangely enough.

 

[Dr.EM]

This will reduce the vibrations travelling from the speaker enclosure (which should be minimal anyhow in a good design) to the desk and causing the desk to resonate at its own harmonics. This could cause colouration of the tone. Possibly more important on these speakers is that port right at the bottom. You've now moved that further from the desk and furthermore added the presumably acoustic absorbent foam in between, this reduces boundary reinforcement effects so you may find bass is reduced but advantageously possibly less "boomy". Foam is more popular than spikes for isolation of studio speakers I believe. I t seems like it'd be more effective, providing its fairly dense foam

 

[mrk]

Foam on floorstanders though is not a good idea unless you like toppling them over

 

[Dr.EM]

This is true

Looks like KRK Rokits you got there Maccy? A freind had them, said they were rather good

 

[mrk]

I have a nicer alternative for floorstanders

 

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[mrk]

I had something better in mind

 

[Maccy]

This is true

Looks like KRK Rokits you got there Maccy? A freind had them, said they were rather good

Rokit 6's - they're fantastic!!

 

[wij]

Rokit's are pretty decent budget monitors but because of their price tag the cabinets are not that well damped or braced internally and they do resonate a fair bit at volumes.

Thomann have started making their own version of the Auralex Mopads for about £15, they are a bit better than the logic box foam as its more dense and also gives you an upwards angle getting them pointing more at your ears.

If you really want to try something decent though get some Primacoustic recoil stabilisers, expensive for what they are but they do work very well. Currently using a pair under my Dynaudio BM15A's and am very impressed.

 

[Maccy]

I wouldn't call them budget personally, at just under £300 for the pair!

 

[danza]

My thinking is that rigid coupling between the speaker/stand/floor is the best way to ensure bass drivers are moving the cabinets as little as possible, thus shifting air more efficiently.

Although I'd imagine having the speakers on the desk is doing them no favours, and can see why foam helps in this situation.