What is your AVR setting when calibrating your sub?
McLoki
Posts: 5,231
ok, so I am about ready to tear down my house and build a new one. (ok, maybe just a dedicated home theater room)
This is the best that I can get out of my sub. It does graph much worse than it sounds, but still - it looks ugly....
One question, when you all apply a BFD or other equalizer, do you put your AVR in stereo mode, pro-logic, or turn off all your other speakers when trying to calibrate your sub to your system?
The following graph is from stereo mode, before and after BFD - no gains, just cuts.
I am pretty sure the 80hz peak is coming from the poor placement of my front speakers, the big nulls are coming from a bad room design for HT.
Michael
This is the best that I can get out of my sub. It does graph much worse than it sounds, but still - it looks ugly....
One question, when you all apply a BFD or other equalizer, do you put your AVR in stereo mode, pro-logic, or turn off all your other speakers when trying to calibrate your sub to your system?
The following graph is from stereo mode, before and after BFD - no gains, just cuts.
I am pretty sure the 80hz peak is coming from the poor placement of my front speakers, the big nulls are coming from a bad room design for HT.
Michael
Mains.............Polk LSi15 (Cherry)
Center............Polk LSiC (Crossover upgraded)
Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
Center............Polk LSiC (Crossover upgraded)
Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
Post edited by McLoki on
Comments
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Well, managed to mess up the image - here it is again....Mains.............Polk LSi15 (Cherry)
Center............Polk LSiC (Crossover upgraded)
Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms) -
Two words: Bass Traps"What we do in life echoes in eternity"
Ed Mullen (emullen@svsound.com)
Director - Technology and Customer Service
SVS -
Wow, you said it was ugly. You weren't kidding:D
I always put it in stereo mode and unhook the fronts. Not sure if this is right. But I have always been more interested in what happens down low and when I do a graph with the fronts hookled up it is very similiar in this range.
Anyway I am curious to hear the "proper" way to do this.
kevinThe Flea rig
Hitachi 50VG825 LCD
Rotel RSP 1066 (pre) -flea market
B&K St-202 (mains)-flea market
Carver M 200t (x2) (center and surrounds)-flea market
Blu-Ray..PS3 (dvd player)
Polk RTA-11t-flea market
LsiC, Fxi30's
Dual SVS PC-Utra's (1 port blocked) thanks MikeC78
Behringer Feedback Destroyer-flea market
AudioAlchemy DDE v1.0 DAC-flea market
Cambridge Audio Azur 640 CDP-flea market
Signal Cable and Kimber Kable -
Here is the graph when I use sub alone. (all speakers turned down at the amp. Crossover is still active though... (80hz))Mains.............Polk LSi15 (Cherry)
Center............Polk LSiC (Crossover upgraded)
Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)