REL Vs SVS for 2 channel music listening

Actually, many of the plate amps on Rythmik subs contain binding posts that take the output from a power amp (high-level signal), using the amp as it's source. The ones that don't are those that contain XLR inputs---the XLR2 and XLR3 model amps. Buyers are given the choice of plate amp models. All the Rythmik amps also contain RCA input jacks, for those preferring to use the low-level signal from a pre-amp as the source. 

I believe jayctoy meant to say he bought a Rythmik F12G. The G designates the GR Research 12" paper cone driver, the aluminum-coned Rythmik version being named just F12. The aluminum-coned woofer is said to play louder than the paper-coned version before "breaking up", due to the greater stiffness of aluminum. Danny Richie of GR Research designed the paper-cone woofer because he feels paper has a more natural, organic timbre than aluminum, and that the paper's lower mass produces greater low-level resolution. When have you heard a sub talked about in those terms?! The Rythmik and GR Research subs are unusually good at music reproduction.