5.1 Speakers, Subwoofer Not Working.

Hey all,

I'm in need of help here with my 5.1 speakers. I just recently changed to a 5.1 Sonic Gear 4000 set of speakers and I believe i have plug in the jacks correctly - based on and online guide, using the Line in, Line Out and Microphone slots.

However, the issue is now there is no bass and the subwoofer is not working. Whenever i do a test of the sounds, the front, rear and center speakers work but there's no any reaction/sound from the subwoofer. Tried using I Tunes, VLC and even videos from youtube. The speakers all work except for theres no bass.

I hope someone can help me here and sort this problem.

I have read up a number of post in this forum to see if there's any related issues but cant really find the appropriate one.

The motherboard that i'm using is Asus P8B75-M LX PLUS.
And here are the rest of images on details of my pc--

Appreciate the help. Thank you.

Welcome to Seven forums Paller.

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Do you have to have speakers connected to the front jacks too?
In Connecter Settings, tick the HD Audio Front panel and check what is under the Tools button.

Some speaker have to be connected to each other as well, such as the sub to one of the side speakers. Do you have it plugged into power?

A couple things I see in your configuration, may not help your bass, but items you may want to look at.

First, you have record set to 48Khz. You should set it to 44.1Khz (CD quality). I have a recording studio and the only time (most) recording engineers use 48Khz is if they are recording audio for synchronization with Video.

Second, you have AC97 front panel jack checked. Normally HD Audio is used. HD Audio has some additional jack sensing that AC97 does not. Same way with the front panel audio connection to the motherboard, HD Audio should be used., Only use AC97 if that is all that is available.

Third you have Swap Center and Subwoofer checked. That may also be a cause of bass woofer problems.

Fireberd is very good on audio issues.

I just thought of something else, are there and volume controls or switches on the sub?