I'm writing to see if I can get some feedback for my ACI Force subwoofer setup. I ordered and received the sub recently and diligently went to work setting it up; reading the guide, playing with positioning, and measuring the in-room response. My findings were that the subwoofer sounds best nearer to a corner, with the bottom plate off, aiming down at a medium thickness carpeted floor. I ran measurements from my primary listening position, twice just to be sure, with an radio shack analog spl meter according to ACI's instructions w/ their test CD. My crossover is at 100Hz, the signal is line level left in, phase is 0, crossover A and B dials on the sub both near 100 mark, and gain on max on the subwoofer with a 1 setting from the receiver (out of 0-20). One interesting thing I saw (and this is perhaps quite normal) is that the subwoofer driver still resonates when frequencies are played that are above 100 well through 150 with the 100Hz crossover. I am enjoying the sub and the bottom end it is filling in but as is usual would like to get the best performance possible. My compensated measurements are listed below. Room size is ~ 12'Hx16'Wx16'L with carpet and one large entry way, of which the audio system is pointed away from, and the room having no other paths for sound to escape.
Atm, i'm considering an EQ system to even out the response(RDES, SMS, or RoomEQ w/ soundcard). Bass traps will be hard to pull off because of WAF but willing to look into it. Thanks for any help.
20 -> 70.2
22.5 -> 70.4
25 -> 68.4
27.5 -> 68.7
30 -> 66.4
35 -> 61.5
40 ->64
45 -> 62.7
50 -> 60.3
55 -> 65
60 -> 70.9
65 -> 72.8
70 -> 737
75 -> 72.6
80 -> 69.5
90 -> 62.4
100 -> 69.3
110 -> 60.25
125 -> 74.2
140 -> 75.15
160 -> 75.1
