Wireless subwoofer question???

you will need 2 "Y" splitters, single male to 2 female.
Connect each male end to the Pre-out (L/R), you now have 2 Left and 2 Right, variable outputs from the Pre-Amp.
You have effectivly split the output voltage, but you can compensate with the volume control if needed.
Once you have the subwoofer at an adeqate level, the only adjustment on the sub needed, may be to switch between Music and H/T modes on the subwoofer.

Eli, note that the question concerns how to deal with the fact that the wireless transmitter to which the preamp would be connected only provides a single input connector. Also note, as indicated at the link I provided, that the preamp already provides two pairs of outputs.

Also, using a y-adapter as you described does not "split the output voltage." It reduces the value of the load impedance seen by the preamp, since in that situation the preamp output will see the input impedances of two components in parallel. If that reduced load impedance is still much higher than the preamp's output impedance, the reduction in voltage will be negligible. That would certainly be the case with the Peachtree Nova, which as I had mentioned has a very low output impedance.

Regards,
-- Al

Hi Almarg & Eli,

Thanks so much for the help! Almarg, it seems then the best is just to keep it running via the rca cables, so that's what
I'll do for now with this sub. It is btw a new JBL sub, and I
bought it with the intent of just using it for movies alone, but it does blend really darn well for music. Oh well, I'll just keep the long run of wires.

Thanks again!

I took a look at the manual for a couple of the JBL wireless subs. I think that you could accomplish what you want with an inexpensive mixer, such as this one. The manufacturer's page on it is here. Considering that the sonic quality of the mixer at frequencies above the deep bass region would be irrelevant, it could very well be just the ticket despite its very low price.

You would connect it to the "no. 2" L&R outputs of your preamp, and connect its output to the RCA input of the wireless transmitter. You would turn on the low pass filter the sub provides for its wireless input, of course.

In setting the level controls on the mixer, you would want to be cautious in turning them up because it provides a maximum gain of 40 db, which is WAY too high when the source is the output of a preamp. Since it is intended for use with line-level sources such as CD players, though, it presumably can handle the output voltages of a preamp without any problems if the level control is kept in the lower part of its range. To fully confirm that, though, it might be a good idea to contact the manufacturer and ask them how much input voltage the mixer can handle before it overloads and distorts.

Regards,
-- Al

Hi Al,

Thanks a million, I will look into it. The ES 250 you looked at is the exact one I have.

thanks,
Bob