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NEW Subwoofer help!!!


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5 replies to this topic

#1 of 6 ChristopherW

ChristopherW

    Agent

  • 36 posts
  • Join Date: May 23 2002

Posted April 10 2003 - 04:00 PM

I just got a new subwoofer, but I need some help setting it up.
It's a Stryke AV12 with 2 15" PRs and an AMP350

When I connect from my sub out on my receiver to the line in on the sub all I get is a hum throughout my system. It stays the same regardless of the volume or the source. Adjusting the subwoofer level on my receiver makes no difference. It seems to me like my sub is not receiving any information.

also I tried connceting it via the high level inputs with the same result. HUMMMMMMM.

Do you guys have any ideas?

Thanks,
Chris

#2 of 6 Rick_Brown

Rick_Brown

    Second Unit

  • 449 posts
  • Join Date: Oct 25 2001

Posted April 11 2003 - 12:05 AM

Make sure that you have told your receiver that you have a sub by selecting it in the setup menu.

#3 of 6 Kyle Richardson

Kyle Richardson

    Screenwriter

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  • Join Date: Jan 01 1998

Posted April 11 2003 - 01:34 AM

Sounds like a possible ground loop hum. Try searching the forum for "ground loop hum" and you will get many hits with all of the possible remedies.
Good luck!
Kyle Richardson
Acoustic Visions

AOL Instant Messenger Name: kyler70
MSN IM: acousticvisions@hotmail.com

#4 of 6 Brian Bunge

Brian Bunge

    Producer

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Posted April 11 2003 - 04:27 AM

I built the sub for Chris and it worked fine here in the shop. I also suggested he make sure that his pre/pro was setup to send the sub a signal.

Kyles suggestion is a good one too. A cheater plug might be in order.
Brian Bunge
RAD Home Theater

#5 of 6 ChristopherW

ChristopherW

    Agent

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  • Join Date: May 23 2002

Posted April 11 2003 - 11:42 AM

Well the hum is gone! I found out that it was caused by the CATV connection! Now I just gotta fool around to get some signal flowing to the sub.

Thanks for the help you guys!

#6 of 6 Greg_R

Greg_R

    Screenwriter

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  • Join Date: Apr 09 2000
  • Real Name:Greg
  • LocationPortland, OR

Posted April 11 2003 - 11:48 AM

Quote:
A cheater plug might be in order.
Not always an electrically safe recommendation (it depends on the sub's amp). Call the manufacturer to see if bypassing the ground is safe. Chris, here's my post in the HTF Faq describing some potential ground loop solutions.