Hi, I am new to this forum. I am trying to set up my home theater system. I purchased a set of Logitech Z-5500 speakers, which has a 10" powered subwoofer. I realized after I purchased these speakers that it appears that their primary use (at least for the subwoofer) is to be connected to a PC.

I am trying to use them as a home theater surround sound speaker system. I have an Onkyo SR-705 AV receiver. I have connected all of the other speakers from the Z-5500 system directly to the Onkyo receiver, but I can not figure out how to connect the Z-5500's subwoofer to the Onkyo receiver.

The only "in" connection on the back of the subwoofer is a 15 pin "paralell port" type connection, which is connected to a small controller box that came with the Z-5500 system. I'm trying to figure out how to connect the subwoofer directly to the Onkyo receiver.

On the back of the Onkyo receiver, there is a "paralell port" type connector labeled "RS-232". However, it is only a 9 pin "female" connector. Is there a way to connect the Z-5500 subwoofer directly to the Onkyo receiver? If not, and I have to keep the Z-5500 controller unit in the loop, between the Onkyo receiver and the subwoofer, how should I make that connection?

I've tried hooking up the Z-5500 controller unit to the subwoofer, using the cable coming out of the back of the controller box that is supposed to go to the subwoofer. Then I hooked up the Z-5500's controller box to the Onkyo receiver's "optical out" port, using an potical cable, but I wasn't getting any sound out of the subwoofer using that set up. Any advice from anyone familiar with these systems on how I can make it work? Thanks!!


Mike

Hmmm...probably not much help, but I have a set of those too, I'm using them for a dedicated game tv though and not with a reciever.

The main problem is that the Z-5500 is pretty much a self contained system with a reciever, power amp and speaker set all in one. I'm a little suprised that the optical out from your Onkyo didn't work, but I'm not sure what kind of signal that puts out.

I'd say your best bet would be to utilize the PRE OUT section and then you would use the cables (with adapters) that came with the Z-5500 to connect to the discrete ins on the back of the 5500 controller. This is how a computers sound card would connect as well. You will have to shell out some cash for some adapters at Radio Shack but at least they have a liberal return policy! You might also be able to get away with just connecting the SUBWOOFER jack to the 5500's sub in. Just remember in any case to switch that little switch on the back of the 5500 to the 6-channel direct setting.

I found this in the manual for your receiver:
"PRE OUT: FRONT L/R, CENTER,
SUBWOOFER, SURR L/R, and SURR BACK
L/R This 5.1/7.1 multichannel analog audio output can
be connected to the analog audio input on a multichannel
power amplifier for when you want to use
the AV receiver solely as a preamplifier. The SUBWOOFER
jack is for connecting a powered subwoofer."

Hope this helps!

I don't think you're going to get it to work, and even if you do, I don't think it's the best idea. The Z5500's are supposed to be a self-contained system, which is why the receiver is built into the sub and there is no direct way to use the subwoofer.

I think considering that you already have a receiver, you'd be better off either exchanging the Z5500's for a more suitable speaker/sub setup, or using the Z5500's as intended (powering the satellites from the Z5500 instead of your receiver, and running an optical cable from your Onkyo OUT to the Z5500's IN).