John H
Second Unit
- Joined
- Nov 27, 1998
- Messages
- 472
I am using a pair of Paradigm Servo 15's in conjunction with a pair of Velodyne HGS-18's in a 16L'x16W'x8H' room.
I use the 18's up front in each corner. The 15's are positioned along the rear wall on each side of my bed firing at each rear corner. The 15's are out of phase with the 18's up front.
An Audio Control PCA III bass synthesizer is used on their signal. It is adding 35-17½Hz subharmonics from a 70-35Hz sampling range. An ART 351 is used for final equalization.
I am using the Auto Sound CD and the RS SPL meter for measuring at the listening position.
Below are corrected numbers.
80Hz-87.0dB
71Hz-94.0dB
63Hz-88.5dB
56Hz-84.5dB
50Hz-86.5dB
45Hz-90.0dB
40Hz-86.5dB
36Hz-90.0dB
32Hz-86.0dB
28Hz-83.0dB
25Hz-84.0dB
22Hz-87.5dB
20Hz-88.0dB
16Hz-87.0db
The 80Hz reading is with both the Mains and subwoofers playing.
There is no more room to reduce the 71Hz peak. The 351's 80Hz,63Hz and 40Hz sliders are at the bottom 12dB cut. No frequencies have been boosted.
John
I use the 18's up front in each corner. The 15's are positioned along the rear wall on each side of my bed firing at each rear corner. The 15's are out of phase with the 18's up front.
An Audio Control PCA III bass synthesizer is used on their signal. It is adding 35-17½Hz subharmonics from a 70-35Hz sampling range. An ART 351 is used for final equalization.
I am using the Auto Sound CD and the RS SPL meter for measuring at the listening position.
Below are corrected numbers.
80Hz-87.0dB
71Hz-94.0dB
63Hz-88.5dB
56Hz-84.5dB
50Hz-86.5dB
45Hz-90.0dB
40Hz-86.5dB
36Hz-90.0dB
32Hz-86.0dB
28Hz-83.0dB
25Hz-84.0dB
22Hz-87.5dB
20Hz-88.0dB
16Hz-87.0db
The 80Hz reading is with both the Mains and subwoofers playing.
There is no more room to reduce the 71Hz peak. The 351's 80Hz,63Hz and 40Hz sliders are at the bottom 12dB cut. No frequencies have been boosted.
John