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Different sensitivity speakers in HT

Hi. I have Thiel CS1.5s up front and Thiel SCSs all around. The 1.5s are 86db and the SCSs are 87db. The SCSs are clearly louder than the 1.5s when I play the same thing through all the speakers. My preamp has adjustments for the center and surrounds which I've mostly gotten to my liking. I'm wondering if there is a specific formula I should be using to set the level for the different sensitivities. The preamp adjusts in 1db increments but just lowering 1db on the SCSs still keeps them too loud. Recommendations? Thanks. leo.
leoturetsky

Showing 1 response by gpalmer

gpalmer
174 posts
 
The best way is to get a Radio Shack sound pressure level meter (about $40-$60 depending on model)and a test CD with test tracks for the channels. Your preamp might also generate test tones for the different tracks which you can use instead of the test CD, I'm not really familiar with it. Then it's just a simple question of measuring the volume of the signals with the SPL meter and adjusting till they're equal with you positioned where you will be listening.

Greg
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