How do I connect the sub

I am not clear if you are saying that the amp has sockets for a pre-amp to be connected to it. Or if it is a pre-amp and that it has an out socket for connecting a power amp.
Either of them are not suitable for connecting a sub I think.

first make sure the actual sub is powered on .You can tap on the RCA leading to the sub and hear the sub humming..Im assuming you do have a powered sub connected to sub out of receiver .Also you could also connect another type of speaker with RCA to make sure if it has output or not..Also make setup does have sub output ON..thanks

hi,
You can't connect the pre out of your AVR to this sub woofer. Do one thing connect the frond left/ right channel speaker "B" out of harman kardon to the sub woofers left right speaker in put. you can connect the speaker out "A" to your normal left right speakers. Remember to switch Speaker "A" and "B" in ON position in your AVR. Also do one thing go to the speaker setup of AVR and switch OFF (slelect NONE) the sub woofer.This will disconnect the sub woofer pre our and the sub frequency will mix with frond left right channels.
ok

hi,
Do you mean sub woofer. Then you can select any brands Active sub woofer ( active means built in amplifier) to connect with your system. They comes in different power (watts). you can use an active sub woofer with 100W output.
connect the sub woofer pre out of you amp to the pre input of sub woofer.
ok

Only if your amp has an output suitable for driving the active sub bass speaker.

Usually you will looking for a pir of rca/phonos marked mono sub pre out out or something that indicates a line level signal output, check the manual for your amp.

Do not connect an active speaker to a high level amp output as this will damage the equipment.

Hope this helps
Thanks for using FixYa

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

:) the rca jacks have to be connected to an amplifier,, their signal is too lay to even light a bulb.. you have to connect it to a car amplifier and then from the amplifier to the speakers..

Just so you'd know,, once your deck plays and you hear music on your speakers through your normal speaker wires,, RCA jacks work..

Ok you have 4 jacks,, 2 subs and 2 front.. These should connect to a preamp,, which takes 4 inputs and allows you to equalize or adjust how the music should sound,, now from the pre-amp,, it runs to an amplifier,, thats powers the subs and another that powers the speakers.. Some amps have 4 inputs so you can use one amp for your subs mids and heights..

for example a basic music system is

1 cd player
1 pre amp
1 amplifier (4 inputs, 4 channel out)

you bridge 1+2 and connect this to 1 12" double coil sub woofer

the next 2 connect to 2 mid speakers example "rockford or ev 5 / 8 " and 2 tweeters for heights..

Thats a kicking tricked out basic car audio system,,,

Hope that helps you understand how it works..

you may have to go into the onscreen menu and enable it,that shuld work

I've got the same model and the pre out transistor needs to be replaced,
sometimes you can get it to work by unplugging the reciever and the pre out
then plug in the reciever and plug the pre out in a couple of times or so untill it comes on
or unplug the amp from the wall then plug in the pre out , turn on the reciever wait for sounds to come on then plug in the amp.
if that don't do it the pre out transistor needs to be replaced

YOU SHOULD HAVE A SUB OUT PUT ON THE BACK OF THE AMP MARKED PRE OUT IF NOT CONNECT THE FRONT LEFT AND RIGHT SPEAKER OUT PUTS TO THE SUB THEN FROM THE SUB TO YOUR SPEAKERS.

HOPE THIS HELPS
CABLE GUY.