Experience with Downfiring Subwoofer


Colleagues:

SITUATION: I own a pair of Monitor Audio Bronze W10 subwoofers. They are down-firing units. Placement will be on Berber carpet with heavy padding on a wood composite second story floor. The units are designed to have the amplifier set upon 4 feet approximately 2 inches from the ground. 

QUESTION: Recognizing the down-firing speaker radiates sound outward in all directions on the floor, what are your experiences in leaving the feet on a carpeted surface, solid platform, or on a raised subwoofer/equipment platform?

Thank you for sharing your experience and insights.

rock-on

@izeek11 oh there is additional energy fed into the floor. Yes, bass is omnidirectional but the floor because the first radiation surface that takes the brunt of the wavefront. so that is a care to take regardless of bass being omnidirectional

Can't you put a piece of granite, wood etc. Under the woofer that is large enough to accept the spikes sitting on it?

ozzy

@kofibaffour-so no additional energy fed into the floor with down-firing?

thanks. i figured there would be. not gonna work on my wood floor. 😆

@rock-on. you're probably getting floor and wall resonances if you're floor is suspended wood. you might consider some form of decoupling. 

my floor is also suspended wood. while i don't have down-firing subs, they still resonate through the floor. my solution is the subs on an isoacoustics sub stand on a paver on the carpet. i tried the feet, nope. the stands better. much improved with with stands on pavers. 

my towers are somewhat similarly set-up.

definitely does a great job reducing floor and wall resonances. 

that being said. everything you use will have it's own effect. i hated sorbothane. it truly sucked in my chain.

next up, granite plinths. they'll, at least look better. maybe, a small improvement in decoupling.