Correct. Some like to add a Y splitter at the AVR to feed the left and right channel. This allows you to add both the mains to do a sub + mains measure.I just plugged the soundcard line out (right channel only) into AVR analog in (right channel only) to do the sub measurement, is this correct?
You can measure all your speakers by turning off the sub and connecting any speaker you want to measure to the right or left mains output. The AVR is always in stereo when using REW - no multi-channel soundfields allowed.I'm using RS Digital SPL meter, is it a great idea to measure Front and Centre speakers? How do I measure the main speakers? One speaker at a time?
I've read that many times and have wondered what is the negative associated with that? If it's only good to 3000 hz... why would I need anything higher than that? I've considered buying a new SPL but not sure why I would need it.What brucek said. I'll also add, keep in mind that Radio Shack meter is only accurate out to about 3000 Hz.