Hi,
The subwoofer will be for 2 channel audio only.
System:
Pioneer pds 507 cdp (perpetual technologies p3 modded by modwright)
N.E.W. P3 tube preamp
Spread Spectrum Technologies Ampzilla 2000 second edition
Salk Sound HT2's
http://www.audioc.com/library1/images/hookup/mhookupe.gif
Is the above diagram a realistic way to connect my preamp to my subwoofer?
Cheers Rod
Rod,
The diagram you posted is what I have done for the last 3 years. Of course you won't need the splitter coming out of your preamp as you have dual outputs (as I do). However, to get the most from your sub, I would recommend using an inline high-pass filter for your mains and EQ'ing your sub.
I've been very happy using FMOD filters to high-pass my mains. There are many reasons why I like them, but know they are in audible to the signal (to my ears), and they work well enough.
Get your sub dialed in using conventional wisdom. If you are happy with the sound, leave well enough alone. If not, get what you need to measure the frequency response to see if EQ might help. I've been EQ'ing my subs for many years and would never be without it.