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5002VZ

Hello everybody,
I am running (2) 5002 amps on 15" drivers. Ea. ch. is getting 4z load, identical drivers, identical boxes. Amps running stereo/4z load. Both amps are under IQ-II network control and are using IQPIP-USP2 Ultra cards. and I have the 1.010 chipsets on ea. I believe both cards are scaled to +20 setting.
I'm experiencing a 10dB loss in output power on one amp over the other (yes, both channels). ALL cards and networking aside. Using "dumb" cards, I have the same power loss. (input is not one-legged)
Am I about to see this amp fail? What should I look at if anyone has seen this power loss before?

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