crang:Hi what amp you using? my 540 ver 2 is fine with my Diamond 9.1s. dont need to go past 1 o,clock with volume? i have had the three red lights flash, unfortunatly it was terminal!, even went of with speakers disconnected. Richer replaced no probs , try disconnecting speakers to seee if prob replicates,.When I push mine to far ( with two pairs of speakers, tdl nuclear 6 and 9.1s) if i go past 12 clockish the amp shuts off with one red flashing light which is overload protection, 3 red lights is not good , take it into Richers or contact CA thru thier web site. Hope this helps
thanks i have the 640a v2 amp i have disconnected the speakers, the amp seems to turn it self down and the led flashes in time hope this makes sense.