How to hook JL F112 sub to both preamp and pre/pro


OK, so I impulsively bought an F112 sub. WOW. Great for movies via LFE sub out from Sunfire pre/pro. However, cant engage sub when I use source direct mode, which bypasses all processing. Sub only has line level input. Been thinking about buying separate 2 chnl reamp with HT bypass anyway, but not sure how I would hook that in. Maybe a line level switch box, where I would send the LFE out from the pre/pro and also sub out or second set of L/R output from preamp ansd switch them as needed? Is there such an animal, or any other ideas? Thanks...Jeff
jeffkad
texas,
that's really odd that the manual is SO explicit on this point, while their technician is clearly telling end users something different. point taken, thanks for your comments - perhaps the OP should bring this up with JL.

Jeff,
my rig isn't the final word in high end, but i've spent the last several years going through several different amps, preamps, sources, DACs, speakers, etc to get to a point now where i'm comfortable evaluating gear IN MY ROOM to MY PREDILECTIONS. those are important to note, as we all listen for different things, and my gear might sound dramatically different in another room.

i'm currently running Wilson speakers and VAC monoblock amps. the aforementioned DAC2 serves as DAC and preamp and is surprisingly capable in that role. that piece was really something of a surprise, as i never expected it to better my Weiss Minerva, and certainly never thought I'd be running it as a preamp.
Mac:

Barry Ober is a technical consultant for JL. Check out his own personal website at soundoctor.com ( a wealth of audio info and white papers). This guy has an uber-impressive resume, he's an audio engineer and has built recording studios. A very knowledgeable dude.

I think he's credible, to say the least.
Srosenberg, thats a mighty nice system, and certainly more high end than mine by a longshot. As I stated earlier, I wonder if I'll be able to hear as much of a significant difference with preamp changes as you would in your system. Guess the only way to find out is try it! The W4S Dac seems like a real giant killer based on your experience, so I may give that a shot at some point. By the way, Classe just came out with the CP-800 a killer preamp/dac/async USB all-in-one unit that also has sub-out. $6k pricetag, but thats pretty reasonable for everything it does (as long as it sounds good of course)
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