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Sub hookup in a 2ch/HT system with preamp passthru

Can anyone tell me the best way to hook up a Velodyne DD-12 to my system that uses the preamp (Mcintosh C2200)for 2 channel control and also as a passthru for my processor when listening to HT/satellite. The sub has 1 XLR input and 2 RCA inputs. Do I need to run cables from both the processor and the preamp to the sub? Can I run just one pair off the preamp outputs into the sub and that will work in both 2 channel and when the preamp is passed through? The C2200 has 3 sets of outputs. ANy help is appreciated. In speaking with Velodyne (who thought I was a minority using a preamp as a passthru for HT) they were no help what so ever. He told me the sub was meant for just one input from EITHER a receiver, processor, or preamp and that adding other components to input would sum all the signals and degrade the performance. THanks again. Dave
canucks0
kr4's avatar
kr4
3,677 posts
 
Hard to answer. Are you using the sub for LFE or for bass-management?

Kal
canucks0 OP
44 posts
 
Kal, more for bass management and trying to get a bit more bottom end in the 2 channel listening. Of course the sub will also be used secondarily in the HT setting. Did that answer you question? Thanks for your help.
bundy
127 posts
 
I do what you are looking for by running the LFE out from my processor to the L RCA input on my Velodyne HGS-12 and a second pre out (My pre has dual outputs which is convenient for this configuration) to the R RCA input of the Sub. I then Set the crossover on the Sub to around 70 or so. I set everything up optimal for two channel and then adjusted the processors LFE output level to match that. I'm know I am loosing a little of the LFE signal by applying the crossover to that signal but the loss is worth it in my opinion to get the sub to work for 2-channel as well as HT.

Hope this helps.
kr4's avatar
kr4
3,677 posts
 
Simplest arrangement is to tell the processor that you have no sub and that the front L/R are large. Then connect the output of the 2200 to the L/R inputs of the DD-12 with the main amp fed from the DD-12's RCA outputs. This will impose an 80dB HP filter on your main speakers but all the bass and LFE will go to the DD-12.

Use the setup/EQ on the DD-12 to configure the rest of the crossover options.

Kal
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