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 sean

My experience is that HT and music work best with completely different LF settings. How much of a boost is required for "best" HT will vary with the extension, type of loading and placement that the subs have to offer. Trying to find one setting that is a good blend between the two different formats is very tough and usually a compromise at best.

As far as integration goes for music, one should mount the subs pretty close to the mains ( if at all possible ). This presents a more stable image, less localization problems and minimizes the time delay differences between each cabinet. Using large full range speakers for every channel is by far the best solution but most people aren't willing to sacrifice the necessary amount of "acreage" to do so.

Once you achieve the proper blend between your mains and the sub(s) for music, one can simply introduce more LF boost for movies as they see fit. Toggling between two different settings is not that difficult in most cases, especially if you have some type of programable processor.

If using powered subs, simply dialing up the gain on the sub amp is a quick and dirty approach. That is, so long as you remember where the settings are. Making a paper template with several different preset marks and taping it to the control panel on the sub can also be done quite easily. This gives you an instant reference for various settings ( rock / classical / jazz / movies, etc... ) with minimal fuss and no worries about memory loss : ) Sean
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