Too much sound deadening? Can you overdeaden doors?

[hari-bhari 10+ year member]

I was reading up on RAAMaudio's site and he seemed to suggest that too much sound deadener, especially behind a speaker, can end up muffling the sound and killing midbass. Is this true? I ask because I am switching from a DLS MS6a to a Hybrid Clarus 6.5" set (one speaker installed so far), but both sets seem to be lacking in the midbass department. It sounds more like a tap-tap than a boom-boom when bass hits, especially at lower volumes. Doors are fully deadened with raamatt (used a whole roll on just the doors), speakers were mounted on MDF rings, isolated with clay, and with egg crate foam behind them. I'm thinking now that maybe TOO much deadening or the egg crate foam is causing problems since these speakers are supposed to be run IB. Speakers are HP at 63hz @ 12dB. Any ideas?

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[wenn_du_weinst 10+ year member]

that is something totally different for an issue.

There is a point of diminishing returns with deadner but it won't get rid of your midbass.

check all your wiring, make sure it's acoustically in phase, try lowering hp.

 

[trumpet 5,000+ posts]

Acoustic foam does nothing for midbass frequencies, so that's not the problem. Too much RAAMatt is a problem of wasting product, so while it's regrettable it won't diminish your midbass output. At lower volume you're going to hear the treble more than bass frequencies. Look up the Equal Loudness Curve.

If you had more midbass before you did all that work to the doors maybe something else changed elsewhere with your system.

 

[keep_hope_alive Premium Member]

Deadener doesn't improve midbass, airtight seals on the doors does.