So I got to the gig last night , plugged everything in like I have done hundreds of times.
Hum from the speakers , quite loud, but independent of channel volume , so I swapped leads , just the same , so I unplugged the VMS 4.1 at hey presto , just the normal slight hiss from the speakers , so I unplugged the USB from the laptop , plugged the VMS back into the crossover and loud hum again , so guess I have a faulty VMS , got through the evening on the left channel only , no sub , just the one top and the Horizon 1300 amp , and I had to put up with the hum , no one noticed in the pub ,I was surprised how much bass I could eek out of the 8" tops , no either the output stage of the VMS has a fault , of something else , I will try the booth output later , failing that I new controller is needed ASAP.
Your thoughts ans suggestions are welcome.
set up is as follows.....Laptop....VMS 4.1.....crossover......Horizon 1300 ( tops)......berry EPQ2000 ( subs)
Cheers
Daryll