looking for low cost dB measuring tools for AVR158 harman - AVS Forum
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post #1 of 5 Old 07-25-2012, 02:04 PM - Thread Starter
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Hello,


i own Harman AVR158 and it doesnt come with microphone for setup , is there is any simple method or tools to measure?

im looking for something simple and low cost max 150~200 USD. im using 5.1 setup.
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post #2 of 5 Old 07-25-2012, 02:24 PM
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Do you have a Smart phone..
Android or iPhone..

Both have some great SPL measuring apps available..
Apple has VUMeter, which I use frequently.....

Just my $0.02... wink.gif
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post #3 of 5 Old 07-25-2012, 02:48 PM - Thread Starter
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Quote:
Originally Posted by M Code View Post

Do you have a Smart phone..
Android or iPhone..
Both have some great SPL measuring apps available..
Apple has VUMeter, which I use frequently.....
Just my $0.02... wink.gif

wow nice , there is any tutorial showing how to setup your AVR using SPL ?
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post #4 of 5 Old 07-25-2012, 04:22 PM
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Very simple..
The basic idea is to have the SPL (volume level) from each loudspeaker to be of equal level @ the listener's sitting position. Use the Test Tone with the AVR it will go to each loudspeaker, set the AVR volume @ about -25dB. As the Test Tone goes from 1 loudspeaker to the next, using the remote control set for Channel Trim level, adjust its volume level to be about 75dB an ddo it fro each loudspeaker. Note that here the actual AVR volume setting is not crucial but it is important to have each channel @ the same volume level....
For example, if the left front loudspeaker is too loud compared to the right front, then this will pull the surround sound field out of balance. Once the levels are set, you can go always go back and adjust it more if you want the front loudspeakers to be louder or softer compared to the rear surrounds.

Just my $0.02... wink.gif
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post #5 of 5 Old 07-25-2012, 04:51 PM
 
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SPL meters can be had at the Shack. There's where I picked mine up many years ago for the same said purpose of balancing the speakers.
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