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

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.

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.

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

I have the same setup as you:
a preamp for 2 channel with HT passthru and 2 outputs, a separate surround processor and one subwoofer. I agree with Kr4 above and set up my system the same way. The key is setting both L and R front speakers speakers on the processor to 'large' and the subwoofer to 'none' - this will direct all low frequencies to your front channels, which your subwoofer is a part of. You can then set the crossover on the sub to your liking. I find I like the crossover lower (40hz)on music and a little higher with movies.
Also, you can set your center to 'small' if you'd like to direct center channel low frequencies to your mains and subwoofer.

Thank you fellas for your help. I really didn't want to use a sub BETWWEN my pre and amp since I'm using XLR's (Aqueous Anniv. from Purist) between preamp and amp. THe amp is 2 channel and accepts either RCA's or XLR's. Can I not go:

2 channel - source with XLR's > preamp > output with XLR's to amp. I would use a pair of RCA's outputted from preamp (I have main, output1, output2 pairs in RCA and XLR as outputs on this preamp) to subwoofer in (RCA L/R)

When in HT can I not just take a y-cable with 1 RCA out from SUB OUT on the processor and input into any pair of inputs on the preamp. I don't know if the preamp (since it is in passthru mode at this point) will pass the sub signal through as well. As it is now the front channels (L/R) come out of the processor into the preamp's 2 AUX inputs. Can I not just Y from the processor to another set of inputs on the preamp and the signal will work in HT? As an additional note, I CAN switch OUTPUT 1 and OUTPUT 2 on and off manually or remotely but on the MAIN preamp outs I cannot. Any other options guys? Might have to send the unit back and buy the new REL Britannia 2 which is inputted right from the speaker outputs on my 2 channel amp and could connects right to the processor via 1 cable to get the .1 in HT. THanks very much for taking time to correspond. Velodyne thought I was a freak when I mentioned my setup (2ch/HT hybrid) to them and didn't have anything valuable advice to add. Thanks. Dave