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Originally posted by John Kotches:
I don't have that disc, but I do have similar discs.

I'm set at 80 Hz High-pass, 150Hz low-pass on all speakers. I'll do some testing and see what I get.

A friendly reminder -- crossovers aren't brick walls and for 1-2 octaves past the crossover you could get measurable output that is psychoacoustically masked.

Let's say for example you're playing tones @ a 90dB target spl at all frequencies. At the crossover frequency would be getting 87dB from each loudspeaker. This crossover is asymetrically implemented with the High-pass side @ 12dB/octave and the low-pass side at 24dB/octave. It is important to note that this ignores any room effects completely and it assumes only 1 loudspeaker plus subwoofer. I know, it's not the real world but we're looking at the crossover's effect on either side so cut me a little slack wink

So let's go two octaves above and below to look at our output:

Code
Freq       Main SPL     Sub SPL
------     --------     -------

 20 Hz        63 dB       86+dB
 40 Hz        75 dB       86 dB
 80 Hz        87 dB       87 dB
160 Hz        86+dB       63 dB
320 Hz        86+dB       39 dB
I hope this helps you out some smile

Cheers,
What disc do you recommend I use for testing? Does your built in sine wave generator on the Meridian work for the crossover filter? Or does it not work through it?

I have my 861 set to the settings you gave me (was it 65Hz or so?) and the volume set to 70dB. I have my test tone at 100 Hz giving a sub output of ~70dB.

The reason why I am worried and trying to figure out the issue is because I want to use EQ on the sub. Right now it is turned off. When I play the speaker tones on the CD and set the volume so the speakers are at 80Hz, and then switch to the sub tones, the sub is measuring ~5 dB lower in volume. This shouldn't be the case, because in the 861 setup I set the sub levels to be at 80Hz compared to the main speakers. No matter what source I use, there is a discrepency in the dB levels between the speakers and the subs. I called Revel and they said that both tracks have the same level settings, so they should both be measuring the same when the volume is raised and I have the crossover set to the value that Revel recommended (80Hz), but they don't measure the same.