how to run three subs from one lfe jack


We are wiring up a Restaurant and looking to use three powered subs from one receiver's outputs 

 

We need a self amplified splitter we want to run RCA cables 20 feet or more from the receivers location

 

Any recommendations on how to do this?

128x128audiotroy

How about purchasing three wireless subwoofers, and running them off a wireless sub transmitter? No long RCA cable runs needed. 

Who told you about needing an amplified splitter? Your receiver is your line level amplifier. You adjust volume on the subs. The only real issue is noise due to cable length but 20ft isn't bad unless it's a very noisy electrical environment.