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Hooking up my JL sub

Folks - I need a little help. Trying to figure out best possible way to connect my JL Audio F112 sub to my Marantz AV7005 processor/preamp. 
Signal is coming from Benchmark DAC 1 - yes I know it’s a preamp and yes I love the sound directly from it - except that there is no remote volume control and I am lazy. 
Passing signal to my Marantz in Pure Direct mode cuts the signal to the subwoofer. Can I use a RCA Y splitter and pass one signal to Marantz and the other to JL audio? 
128x128ghulamr
ghulamr's avatar
ghulamr OP
104 posts
 
Thanks for the info again. 
ghulamr's avatar
ghulamr OP
104 posts
 
Quick question while we’re on this topic. Would connecting a sub using an LOC from the power amp not pass the entire range to both the speakers and sub? Would there not be a double bass effect? 
spinaker01
491 posts
 
Yes. That’s why the preferred method is using a line level connection which both passes the sub info to the sub while removing this information from the mains.
yogiboy's avatar
yogiboy
5,503 posts
 
That sub does not have a high pass filter. Any way you hook it up the mains will run full range!
ghulamr's avatar
ghulamr OP
104 posts
 
Not if you hook up to a preamp that has a crossover adjustment. Last night I played around and was able to shut off all equalization and Audessy setup in Marantz and manually adjust the crossover for the front R/L to 80hz. Also able to adjust the bass delay to 12ms and both my sub and speakers are now singing sweetly. LOC connection does not provide you with this configuration as a matter to fact gives you double bass. 
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