Can a computer speaker subwoofer be connected to an audio receiver through sub woofer preout?

In most surround sound systems the sub woofer is powered separately and uses a standard RCA coax connection to the receiver/amplifier.

Replacing is simply plugging in the new and reconnecting the coax cable.

Usually the audio signal is Dolby Digital 5.1 the (.1) is the LFE Sub-woofer. The connection is between the Subwoofer RCA connector on the amplifier and connects to the (LFE-Line) in on the subwoofer speaker.

Hope this helps?

There should be two jacks on the back that say SUBWOOFER in the "preout" section of the back panel that is directly above the speaker jacks. Either of these jacks should work for your sub hook-up. Also make sure that you set your front speakers to small in the speaker setup menu, otherwise there will be output to the subwoofer jacks.

You need to use an amplified sub. The Yamaha receiver is only sending "Pre-Amp Signal" not amplified audio like the rest of your speakers. If your sub has a crossover built in, connect it's speaker level (wires) to the "B" side of the receiver which will send audio to your sub and it will cross it over internally. Not the best sounding, but it works. Amplified subs range in price from 200 and up. Hope this helps

Your receiver should have an RCA connector on the back panel that will be marked "sub woofer" or "LFE out". That connects to your sub woofer with a standard RCA type cable. Also, some powered subs have left and right speaker level inputs and outputs in which you would indeed run the sub woofer through the speaker outputs. The down side of that type of connection is that the line level converter inside the sub woofer will take a slight amount of your receiver's output power, although that is rarely detectable. Also, if you have a Dolby Digital receiver, using this connection method will take away systems ability to accurately control the low frequency effects of a soundtrack.

Good Luck,
BB

Get a powered sub-woofer that has speaker level inputs, then run your front speaker wires into the sub-woofers speaker level input and then run a set of speaker wires from the sub-woofers speaker wire output to your front speakers. This is a common way to use a sub-woofer with a receiver that doesn't have a sub-woofer output.

Most powered sub-woofers have these connections, just check it out first before you buy one. They look like speaker jacks on the back of the receiver.

Let me know if you have any other questions.

Here are the directions according to the manual:

1 Use MULTI-CONTROL to select
SW CONTROL.
2 Press MULTI-CONTROL to display the
setting mode.
# Press BACK to return to the previous display.
3 Press MULTI-CONTROL to select the segment
you wish to set.
Press MULTI-CONTROL repeatedly to switch
the segment in the following order:
REAR SP (rear speaker setting)—PREOUT
(RCA output setting)
4 Use MULTI-CONTROL to select the desired
setting.
Turn to change the setting.
When REAR SP (rear speaker setting) is selected.
REAR SP:SUB W(subwoofer)—REAR SP:FULL
(full-range speaker)
When PREOUT (RCA output setting) is selected.
PREOUT:SUB W (subwoofer)—PREOUT:REAR
(full-range speaker)
# When no subwoofer is connected to the rear
output, select REAR SP:FULL.

Hope this helps.

The problem was that some subwoofers (inluding my velodyne model) cannot process the LFE signals through the line level inputs on its amps, so the other way to run your subwoofer is to run the front left and right speaker outputs from your receiver to the speaker-level inputs on your sub, and then plug your front and left speakers into the soeaker level outputs on the sub. you have to set the onkyo receiver to "Subwoofer: No". that way the LFE signals are sent through the front speaker channels and you will get the same BASS output as if using the line-level input. O So yes it does require a bit more speaker cable, but it works fine now.

Connect the input from the powered subwoofer to the rca jack on the VSX-409D labelled 'sub woofer preout'.

did you tell the receiver that you have a subwoofer connected (thru the quick setup)?