Rational Forum folks....could use some advice. Filling in for a vacationing Sound Tech on FOH. The venue is a local Veteran's hall / Legion, with an audience of about 100 to 150. Set up with the band last night but no chance to optimize their system or play with the EQ. Band played 2 tunes while I tried to dial in something workable. Have the opportunity to go back this afternoon (in a few hours) ..in advance of tonights gig and see if I can get things sounding better. Downloaded the SMAART demo and would like to give it a test run.
Speakers are a pair of internally crossed over EV 12's Mid Hi boxes on sticks and 1 x18" Sub. Dance floor is about 20x20 of hard Lino in front of the stage and then Carpeted seating area thru out. Set up in a corner stage. I've splayed the speakers to keep the sound off the walls and give even coverage thru out the venue. Overlap zone between the speakers falls in a service aisle.
I'm going to try to see If I can resolve any phase issues between the Sub and the Mid/Hi's but I only have an analog crossover and no way to set delay between the speakers. So, I'll do what I can. My concern is the Room EQ. Admittedly , I don't have the best ears. I am working on developing pitch/ frequency recognition...but that is not going to help me 4 hours from now (lol). I've read Bob McArthy's book cover to cover several times, exhausted the rational website...so the principles of dual FFT measurements are not foreign to me. But I could use a hand getting started.
I'm a bit confused as to the Ground Plane vs. Mic on a stand . I realize you have to consider ground bounce for the Mic on a stand. But their seems to be issues with certain aspects of the ground plane. I'm not going to have time today to source out some absorbtive acoustic / Auralex panels to kill the bounce so should I stick with a Ground plane? I can bring a 4x4 sheet of plywood along to sit on some tables farther back.
I only have 1 measurement Mic.McArthy's book advocates mutliple Mic measurements in a star pattern in the Isolation zone of the speaker. How can i achieve this with limited equipment.
I guess my question over all is..Can any advice be given on how to see room/ Speaker EQ trends with my limited set up? (I know...i know...I'd take a Rational class if there was one remotely near my area but their isn't. Travelling costs to some other part of the continent are too cost prohibitive for a part timer/ enthusiast / hobbyist like myself)
Thanks in advance...Jeff