Technically Correct Subwoofer Settings.....


Here's a huge debate that's been lingering around that frankly I'm determined to get to the bottom of...

What is the correct method of setting a Subwoofer's output to blend with a home theater AND music system....?????

Here's the issue: I use a sound level meter w/ the Avia disk for audio calibration of my home theater. IF one uses the standard pink noice from the disk or a preamp, we can get one sub setting. If one uses the "Subwoofer" setup section, it makes the person setting up the system ADD about 10 dB to the sub output.

Here's my understanding, it is technically correct to use the standara pink noise to set ALL speakers to the same level, including the sub. When one uses the Avia subwoofer setup section to calibrate the sub for home theater, one adds about +10dB to achieve the same decibel output. Now music sounds too boomy.

I spoke w/ those tech gurus from the "Ranch" and they agreed that one should technically use the pink noise from the processor to calibrate and NOT the Sub pink noise to calibrate your system, from a demo disk such as Avia. Has anyone else run across this Sub for music vs. Home theater calibration issue???

Cheers...
hager_charles

Showing 1 response by danner

I've used both the technical (1/3 octave analyzer with pink noise) and empirical (listening to music) methods. Over time I've shifted almost entirely to the latter. Integration requires both level and phase. Pink noise is of no help with the critical phase setting which causes the music to 'lock in.' I use cut 11 on Albert Collin's Deluxe Edition from Alligator Records. It's a 20 bit recording that starts with a killer bass solo. When the bass is right I then listen to the attack of bass and drums after the solo. Once done, I go to piano (cut 2 of Gould's Hindemeth CD for example) for any fine tunning. This is followed by cello and classical guitar. IMO all of these instruments need proper setup of a sub that goes down to 20Hz to sound right.