line driver or 1 amp to run (4) Rev 8's

[RacingSims]

I am currently splitting the line out of my HU rear outputs too much in my current configuration. My question is do I purchase 1 amp to run my 4 Rev 8's or purchase a line driver and add it into the system. I am using 2 HT 4's to power them now. The problem is although in bridge mode the amp requires input on all 4 Channels for both amps. So I am splitting the signal from the rear output once for the 2 amps, twice for all of the inputs on the amp. So the question is line driver or new amp because I think all of the splitting is not allowing the Rev's to shine. Amp suggestions if that is what is decided.

[nyryan2001]

If you are happy with the performance of the amps.... I'd just add a line driver, Exile ZLD or a WS 420. all three would accomplish what you are looking to do, and yes, split the RCAs too much and then you have to crank up the gains on your amps and introduce hiss and noise into your system.

http://www.arcaudio.com/p/ald?pp=24 here is a quality line driver, around $100

[David Analog]

A line driver in one form or another would be a good idea in raising the dynamic headroom and lowering the noise floor. However, the addition of a line driver will not necessarily increase the tower system volume.