Hey,
I am looking for an in-line amplifier. Here is my problem. I have one set of 4V subwoofer preamp outs. I have 2 12" JL Subs in the trunk already hooked up to a 800 Watt Amplifier. I have installed Bass Shakers on a separate 250W Ampliifer. I split the RCA cable coming from the head unit using 2 Y-Cables going to the 2 different amps.

I noticed that the subwoofer now does not put out as much power as before because of the voltage drop on the RCA cable with the split off. I need something that reamplify the signal so that I can run both the subs and bass shakers and have them both receive full 4V. I have searched online, but can't find anything except for the satellite in-line amplifier which is a coaxial connector.

Any help would be greatly appreciated.