Richard Driver

Hee Won Jung, post: 34921, member: 948 wrote: I agree to an extend. The Corner Positioning is something that i guess is a here nor there aspect but there is no way in hell i would ever turn my sub to face a wall. Here is my reasoning…you may get more dB out of your sub for an overall louder sub…but the wall only reflects certian frequencies…and it will absorb others…now the problem with this is that I like to be able to feel that punch in my chest when im on the dancefloor, and you cannot achive that same punch feeling when 1/2 the frequencies are being absorbed with the wall.

As well another issue you face is that when your sub is at a different distance from your crowd than your speakers you get out of phase. The videos i posted below will give u a general idea of what i am talking about

If you have time i want you to do a little test…Grab your phone turn a song onto it and put it into a Metal or plastic cup. You will notice that the sound will be greatly amplified BUT you will get almost like an echo effect happening. The results are that you get a louder sound at a reduced quality as the sound bounces between the walls of the cup before it is audible to your ears.

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sub woofers always need to be in one group. Low frequency sound (bass) spread 360 degree around the speakers and reflection from walls and floor kill direct radiating sound. If you separate sub woofers you add additionally problems because sound from stacks kill each other because is out of phase, you will get comb filtering.

yea im not sure that the wall will absorb 50% of the frequencies. but as I mentioned before, allot of other people attest to this method and for me, well the jury isnt out yet but I will indeed give it a try and report back

thanks for the input guys. good stuff here. in the past ive always had my tops and sub alined in a row with sub facing out towards the crowd. but then i remembered from my car audio days that you almost never wanted to face the subs inwards towards the driver and always towards the trunk. and i found that the closer it was towards the trunk, i would get a big difference in sub out put. my buddy at the car audio shop proved this to me by testing this out in my car with an sound pressure meter (spl) meter. 135db facing the front 138db facing the trunk furthest away, and 141.5db when the subs were right next to the back of the trunk. I had a pair of JL audio w3 on a mean Memphis amp. but long gone are the days of big car bass of my youth but not the knowledge of trails and errors and wasted money trying to reach sound nirvana. and im telling you that if you google sub placement many upon many of people will tell you to put your sub in a corner with like 6-8 inches of space is ideal. 2nd facing the wall and 3rd against a wall. they even suggest for out door use (no walls) to set up your subs to be able to face downwards at an 30 degree angle (modification required). but all and all, im taking input from all sources and i really respect the opinions of you terry and Hee Won Jung. and i do by the way plan on a second sub. Again, I guess there is noting left but to do it. I promise Ill report back after that gig. I wish i could do it at home but i like on the 2nd floor of a multi-unit apartment building with thin walls. My rockit 5s are to much and i get complaints while practicing. Ill show up an hour early for this sound check guys. again thanks so much!!!!