Originally Posted by the_abbot
When you guys use an SPL meter to manual set levels, are you turning the avr volume all the way up to 0? THEN go into the test tone menu to set levels? Or are you just using an arbitrary number for vol (like -12), and using it as a reference "0"?
I've never turned mine up to 0 before and am curious.
1. You should turn the MV up to 0 dB then the internal test tones (at -30 dBfs, band limited pink nosie, 500 Hz - 2 kHz) should output 75 dB SPL (Sound Pressure Level) at the MPL (Main Listening Position). So, this is what your SPL meter should show you (withn it's tolerance range, usually +/-2 dB).
2. You may use arbitrary numbers, but in that case you have to do the arithmetics, like in case of -12 dB MV your SPL meter should read 75 dB - 12 dB = 63 dB, etc.
Hope this helps.