myrison,
Try this link for cable connections:
http://www.hometheatershack.com/forums/s...ion-basics.htmlYou may be monitoring the wrong channel (left vs. right).
This link provides a great step by step setup and calibration process:
http://www.hometheatershack.com/roomeq/wizardhelp/help_en-GB/html/index.htmlAlso, if you are using the Radio Shack SPL meter? If so, have you accounted for it's innacuracy in the lower frequency range? If not, then the dip you have at 50 Hz is actually more severe. The values below are how far off the meter reads at lower frequencies. In other words, if you measured 86db at 20Hz, the real sound level was 92.56.
15.00 -10.28
16.00 -9.28
17.00 -8.53
18.00 -7.86
19.00 -7.12
20.00 -6.56
21.00 -6.18
22.00 -5.77
23.00 -5.41
24.00 -5.10
25.00 -4.90
26.00 -4.54
27.00 -4.27
28.00 -4.03
29.00 -3.73
30.00 -3.53
31.00 -3.25
32.00 -3.04
33.00 -2.84
34.00 -2.61
35.00 -2.54
36.00 -2.44
37.00 -2.28
38.00 -2.13
39.00 -1.97
40.00 -1.80
41.00 -1.75
42.00 -1.60
43.00 -1.54
44.00 -1.51
45.00 -1.43
46.00 -1.34
47.00 -1.23
48.00 -1.12
49.00 -1.02
50.00 -0.90
The dip at 50Hz and the +15db difference (32x power!) at 80Hz could account for your lack of "slam".
