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Member Since 03 Oct 2011
Offline Last Active Nov 05 2014 09:45 AM

Posts I've Made

In Topic: XTI4000 Phase reversal

08 October 2014 - 02:32 PM

I bought one new board and put it in the oldest amp. There is no change with the problem. I'm going to try and switch out my top cab amps board with the other xti 4000 and see what happens. I don't have the money to waste on all new boards when I'm not sure it will fix it. I will try the mono signal and see what happens.

In Topic: XTI4000 Phase reversal

20 September 2014 - 09:14 AM

I pulled the tops off and all of my amps have the version 5 display boards. So back to square one. One amp was built in 2009 USA and the other one in 2011 in China.

In Topic: XTI4000 Phase reversal

19 September 2014 - 11:08 AM

Thank you very much Alain that sounds like it would make the most sense. I will open up the cover and see what version I have. It also seems as these amps get older the problem gets worse, they used to play all day without any issues when I first purchased them. I will post back when I verify this.


In Topic: XTI4000 Phase reversal

12 September 2014 - 10:38 AM

Ok, I have tried swapping cables and changing all DSP settings and even different crossover/ eq settings. Nothing has worked so far.
I did borrow a QSC amp and bridged it to mono, to my surprise either crown amp separately worked perfect with the QSC RMX 2400 with no drop in bass output. So it seems to be a problem only when both 4000's are on together. If I randomly mute one of them in band manager when I loose the strong bass sound it is perfect from the unmuted amp, I also get the same result If I reverse polarity on either amp randomly in band manager. I have tried running each amp on separate 20 amp branch circuits with no improvement in operation.
So now I just only run one 4000 because it sucks to keep having the bass randomly disappear when you try to run both of them. The sound I unbelievable when both are working correctly. Also just a note is that I live in a duplex so I doubt if I ever use even half of either amps capacity, most listening is very low volume so as not to disturb the neighbors.