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

The best configuration you can get for a sub could be a dual opposed side firing driver configuration (ie two opposed drivers in the same box)., in consideration of how subs couple into a room...and what all happens thereafter. 

 

I'm a fan of MK subs (push/pull). 2 in my front system & 1 avr duty.. 

The new generation is out of my spending zone, but they do look sharp! YMMV

Bass is basically omnidirectional so doesn't matter if down firing, or standard front firing. the bass will radiate in all directions.

@kofibaffour This isn't exactly true. What is true is by the time your ear can sort out what bass note is being played, the bass has bounced all over the room and that is why its omnidirectional.

But it does bounce. You want it to bounce as much as possible to reduce standing waves which can cause a boom or a loss at certain frequencies and locations in the room (IME at the listening position...). For this reason a down-firing driver will be a bit more effective if the cabinet has only one driver. 

If you have only one driver in the sub and its not down-firing, I've found it more effective to point it at an angle towards a nearby wall, so the bass energy has bounced around a bit. This helps reduce standing waves.

If the cabinet has outputs in two directions angling it is even more effective.