Elevating subwoofer about two feet off the floor

Hey, everyone, I asked this question last week because I could not do the test myself. My speakers were out for repair so the whole system was down. Today, the speakers were returned so I got to work. I raised one of my two SVS subs off the floor 11" inches by setting it on concrete cinder blocks with Herbie's footers under the sub. Personally, I think ASC is on to something. Raising works for me. The bass blended better with rest of the music.

I only posted their photo as an example. If you need a bass trap, then yes, their product would be helpful. But my room already has bass traps, so I just wanted to see what raising the sub would do.

This should not be surprising; smashing a wave into the floor is never optimum. 

I have been using the ASC sub trap for many years. If you own a sub, you owe it to yourself to try one out...I did, and have never looked back. I feel raising the sub off the floor a few feet gives the sub a much better chance of integrating the low frequency's into the room,a more vertical distribution if you will...away from the room boundary of the floor itself,giving a tighter presentation overall.

With the bass trap centered at 70 Hz,the sub also has a chance of being heard without buildup of room modes. A win win if there ever was one.

I have my small sunfire sub sitting on a speaker stand. It definitely improved performance. A big heavy sub will be a challenge to get off the floor but if you can do it it will help
Alan

It was all I could do to move my pair of JL Audio F113V2's around at all, interesting concept, elevating subs.  The JL Audio's and Velodyne's all have microphones and EQ routines, to "tune" them to the room (I imagine also taking into account the reflections off the floor).  I don't see why one of these wouldn't "tune" properly if elevated.

In my case the room had all sorts of "non-musical" resonances, after installing ten bass traps (with the help of a calibration microphone, and the Room EQ Wizard software) I finally got the subs "dialed in" to the room.

Bass traps are not for everyone...have a very low WAF rating...