Need help bridging

First check your gain it may be turned down. I personally dont bridge speakers. I put each speaker to its own channel on the amp.Make sure positive to positive and negative to negative. Try hookin up two speakers to the amp (not bridged) and turn your gain up around half way. Make sure you amp is switch to lowpass not high since most amps have crossovers built in now. The more speakers you have the less output from each speaker from one amp youll get.