From: Sundown Amplifier FAQ

[the727kid 1]

1) My amps work fine un-strapped but go into protection when strapped and/or my amps are stuck in protection. - 3/8/07

I have had three customers with this complaint. All three of them replaced their RCA cables to remedy the problem. Some model Stinger and Memphis RCA cables will NOT work with the SAZ-1500D, *especially* for the jumper RCA from master to slave based on the feedback I have received. Two customers actually damaged the input stage of their amps using Stinger / Memphis RCAs to jumper between two strapped amps. Be advised... this should be the FIRST thing you check if your strapped pair is going into protection. It will usually be the slave... but not necessarily always.

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More stuff coming when I get time... seems that alot of people get confused strapping these!

Interesting, still haven't figured my problem, amps are going back in next week though. Now I have Stinger RCAs from the HU to the master and master to slave, you think just the master to slave RCAs coud be the issue or possibly the HU to Master RCAs?