How do you use the subwoofer test tone?
I was playing around last night, trying to set up my homemade subwoofer, using my old receiver to drive it. (still don't have the plate amp) The old receiver is getting an 80 Hz lowpass signal from the line level sub-out of the Onkyo.
When I use the Onkyo's test tones, it seems the tone is above the 80 Hz crossover point. I turned up every possible adjustment (bass level, subwoofer output level, and volume on the old rec.) to MAX, and the test tone was still very much lower than the 6 other speakers.
After giving up on the test tone, I put in my own bass test tone generator, Metallica!! With actual musical bass playing, I was able to blend the sub rather nicely. I set the bass adjustment back to 0 (which is where I wanted it in the first place), the subwoofer level to +4, and the volume of the old rec. to just below max. With these settings the bass is great. Very well blended to the other speakers, and completely non-localized. I think it is just right for not having a proper sub amp.
So, what is the point of the subwoofer test tone?