You can use the calibrated mic in R-S's Digital Sound Level Meter and monitor
frequency response using (FREE to low cost) TrueRTA Spectrum Analyzer S/W for PC:http://www.trueaudio.com/index.htmhttp://www.avsforum.com/avs-vb/showthread.php?t=572477
I mount the SLM on a camera tripod in the vicinity of where my ears would be and
manually tweak Pioneer's controls manually, as well as a One-Third-Octave Equalizer
I inserted on the Sub-W Preout to the Sub-Woofer. Behringer also makes a
TrueRTA outputs a Full-Band Pink Noise signal for analysis in either Octave (free) or
the preferred One-Third-Octave mode ($40). Here is THX Equalization Manual:http://www.rane.com/pdf/old/thxeq.pdf
You can also analyze each channel using Pioneer's internal Pink Noise test signals.
Other than setting overall Sub-Woofer level, VSX-1015TX doesn't equalize below
200 Hz, where room resonance (peaks & nulls) varies on the order of 10-20+ dB,
and I don't care WHAT your woofer specs say, it's dropping off like a rock below 30+ Hz.
One-Third-Octave is preferred over Octave to cut back individual "boom" room modes
and MODERATE boost (don't overdo it) for in-between "null" modes so you can hear
ALL of the notes on a bass guitar, drum kit, pipe organ, etc.
PS: You can also use a Test CD with individual tracks for each one-third-octave band,
but it is going to take a very long time to go through all of them, manually jotting
down individual signal levels on the SLM, retweak equalization settings, repeat till squeaky:http://www.rainfall.com/cdroms/pink_noise.htm
BTW: These are primarily one-channel analysis methods. You'll have to swap L/R cables
around to test Sub-Woofer, Center & Surrounds.....