QuadraPentUp
Member
How can you tell from a boot if a show was quad? I’m not being a wise-ass, I just don’t know how one could differentiate - even if a boot is stereo - between panning between FR & FL and panning in quad.
Short of anything definitive literally mentioning a quad sound system - and some reviewer using the term generically and probably incorrectly - color me doubtful Led Zeppelin used a quad system live.
If the boot is recorded with a good stereo mic you can get a sense of it..as I mentioned previously...strong signal in right channel, moving to weak signal in right channel, then weak in left, then strong in Left....rinse and repeat, with the odd criss-cross. Go back to the 75 boots and have a listen
Cheers