Question about Sunfire True Sub Signature Subwoofer

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My sub woofer humms when idle - Sunfire True Sub Signature Subwoofer

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Probably bad caps. Electrolytic caps only good for about 10 yrs. After that, they eventually dry up and cause a many bad problems. Recapping them would take some time with the a soldering iron and a bit of electronic knowledge. Parts can be purchased from DigiKey or Mouser.

Posted on Jan 11, 2013

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The humming could be a couple things.. First try a different outlet in a different room..Make sure the RCA is firmly in place if using LFE and none of the speaker wires strands are touching if using Hi-Lvl input. Also if using Hi-Lvl you might be getting feed back from the Amp.

Posted on Apr 07, 2011

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Posted on Jan 02, 2017

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1 Answer

My subwoofer keep showing a red light when i switch it on, could it be a fuse fault?


Probably not. The red light indicate idle mode. The woofer might have an auto-sense switch. When activated the subwoofer turns on when an audio signal is sensed at the subwoofer input.
Such switches often have three positions:
Idle (Somewhat off, but not quite)
Auto (Turns on the woofer when audio signal is detected)
Allways on. (The woofer is allways on - you might hear humm in the woofer when no audio signal is present)

Apr 24, 2016 | Audio Players & Recorders

1 Answer

What is a sub woofer pre-out ?


Sub-Woofer pre out is for connecting that terminal to the input terminal of any sub-woofer. The sub woofer which it should be connected must be an active type [that is, there must be independent amplifier section built it with that sub-woofer; not mearly a crossover network].

Oct 22, 2012 | Denon RC-920

1 Answer

How many total watts


Hello
The power rating for this amp is as follows.
Two channel: Sub woofer: Min 35Watts
Two channel: Other than sub woofer : 70Watts
One channel: sub woofer; 100Watts
One channel: other than sub woofer: 200Watts.
OK.

Dec 17, 2011 | Pioneer GM-X332 Car Audio Amplifier

1 Answer

I have a active sub woofer (akari bazooka) but the only connections available are the speaker connections. The front of the sub woofer has volume adjustment. How can I connect this sub woofer to my Harman...


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

May 20, 2011 | Harman Kardon AVR 135 Receiver

3 Answers

Powered subwoofer has hum


First of all confirm if the hum is an internal or external problem.
Disconnect the RCA sub woofer input from the back of the unit and turn it on. If there is no hum it could be the interconnecting cable or the output from the receiver. But in the stand alone mode if the sub woofer hums when powered on you have internal problem and will have to be looked into by a professional.
Many a time the earth or the shield of the interconnecting cable is the culprit, because the sub sits on the floor and you might shift it for cleaning the floor and the cable can stretch and snap internally.

Apr 01, 2011 | JBL SCS145.5 System

1 Answer

QUESTION ABOUT SPEAKERS. SPRCIFICALY WOOLFER. WHAT KIND OF WOOLFER SHOULD WORK BEST WITH THIS AMP?


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

Feb 05, 2011 | Technics SA-EX500 Receiver

1 Answer

Connection of a subwoofer to Yamaha ZX-V490


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.

Jan 02, 2009 | Audio Players & Recorders

1 Answer

Hooking up a Klipsch


Need to confirm that you have a subwoofer cable which is a coax cable. I have seen this sort of issue when using a standard RCA cable. If you need a cable you can order it at monoprice.com

Good luck..

KGS

Nov 25, 2008 | Audio Players & Recorders

1 Answer

Hi I own a Technics Hi-Fi system (Model SC-EH780) and would like to attach a subwoofer to it. I cannot find the subwoofer unit that is supposed to go with this system. Can you help?


Any powered sub-woofer will work with it. Check the back of the Technics, make sure there is an RCA output labeled "Sub-woofer" or "Woofer" or "Sub". If so, you can get any brand of powered sub woofer and it will work. A powered sub-woofer is one with an amplifier for the sub built into the box and you will need to plug it into an A/C outlet as well. The only exceptions to what will work with this unit is to make sure you are not buying a sub-woofer that is made to only work with the companion unit it is originally sold with. Many Panasonic and JVC sub woofers are like this. Just look for a sub-woofer that is not part of any system. Velodyne makes some really great sub-woofers that would work nice with yours, but they can be a little expensive, but they are very good.

If your Technics has no RCA output for the sub-woofer, you will need to make sure that whatever powered sub-woofer you buy has a speaker level input for it. Most powered sub-woofers have this feature, so that you may just run the front speaker outputs of the receiver into the subwoofer and then the sub-woofer will have a set of speaker outputs right below the speaker inputs so you can still have your front speakers connected to that and not loose anything from your system.

I hope I have explained this in a manner you will understand easy, if not just post whatever questions you may have right on this thread and I will get back to you as soon as possible.

It would also be appreciated if you could rate this solution if you no longer need any help from me. If you do require more help, please wait to rate this until we are finished. That way I do not get an undeserved bad rating when we have not even finished our communications.
By the way, A "Thanks for trying" and "Helpful" rating are really not good, they always end up lowering my overall score.

Dave

Nov 09, 2008 | Audio Players & Recorders

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