Question about Infinity BU-120 Subwoofer

Open Question

Infinity bu-120 subwoofer making constant thumping sound

Sub-woofer powered on, no other connections except power cord - 160w output - 120v - replaced the fuse, still making thumping sound.

Posted by Anonymous on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: infinity 3.5c , 2 powered Woofer 5.25" suddenly no sound.,

The woofers on my 3.5c stopped working, but with mine the light was off. I unplugged it and left it for about 24 hours and then plugged it back in and it worked. No idea why. It's happened twice and each time takes at least 12 hours or a day or so before it'll work again, just unplugging it for an hour won't do it.

It seems like both times the problem started when the speaker got unplugged without it being shutoff first, but I can't confirm.

But if your light is still on it's probably a different problem. With my 4.1t towers when the light was on but there was still no sound it equated to numerous fried amp components which cost about $150 for repair.

Posted on Apr 10, 2008

Ad
  • 1 Answer

SOURCE: Infinity Entra Sub 150 no sound or power

I had the same problem. When I opened it up, the fuse was blown, and it was a pain to find the fuse it needs (3 Amp, 250 V slow-blow fuse, 5x20 mm). Also, the 2 large electrolytics (big purple things near the amp) and one small capacitor were all blown. For 4 fuses, bought seperately from, and the 2 electrolytics and 1 capacitor, it cost about $20, plus almost 20 more in shipping, which still isnt bad considering the original price of the sub. However, the tricky part is that you have to know how to use a soldering iron to take out the old components and put in the new ones.

Posted on Mar 23, 2009

  • 153 Answers

SOURCE: sub goes full blown loud when plugged in to wall

It sounds like a power supply failure. It needs to go to a repair shop.

Posted on May 05, 2009

fkuk
  • 311 Answers

SOURCE: Can I replace the sub woofer in my home stereo

if the impedance of the new speaker matches the impedance of the old one then i dont see why it wont work

Posted on Jan 01, 2010

dunnbiker
  • 8546 Answers

SOURCE: is it possible to hook the infinity bu-1 subwoofer

In general higher speaker impedance is safer than lower impedance for the amp. Don't expect anything impressive re: audio output from a passive (unpowered) sub if your HTS says it pushes only 25 watts. Without frequency bandwidth and distortion noted the spec is virtually useless as a comparison.

The BU-1 is a powered sub that accepts either RCA Line Level or HIGH LEVEL amplifier power. If you use the latter, impedance is a non-issue because the input feeds the BU-1's internal amp, not the speaker directly. You should be okay.

Perhaps if we knew some specifics about the HTS we could do more than guess.

Posted on Jul 21, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sub making horrible noise even though its not hooked to anything


is it sitting next to any power source if so remove it away from the power source that will not make noisethe sub is just making the frequency noises from electricity

Aug 17, 2014 | Infinity BU-120 Subwoofer

1 Answer

Loud popping sound came from my powered sub now no sound


Did you have your power on when you plugged anything in if so h could have seized your magnet for fried your voice

Aug 11, 2013 | Infinity BU-120 Subwoofer

1 Answer

My sub woofer making noise like machine gun w out connect toamp


Disconnect the sub-woofer and see if the noise stops, if so the amplifier is OSCILLATING and so produces the noise.This can be related to fault with the pre-amp or audio processing section. Try and heat up the circuit using a hair dryer and if the fault clears then there are faulty electronic capacitors. If leak is seen then the pcb must be washed after the capacitor is replaced which can solve the issue.

Mar 12, 2012 | Infinity BU-120 Subwoofer

1 Answer

Power sub woofer is not working on my pioneer vsx-81txv everything is working all the speakers except the power sub connection at the back all i can hear is the hissing sound when i try to connect the sub...


Hissing? How loud? A sub isn't even capable of making high frequency sounds at normal volumes.

The Pioneer manual would tell you how to enable and test the subwoofer output.
Page 17 and the MACCV procedures on Page 33 (auto) or 43 (manual)

Jun 13, 2011 | Pioneer VSX-81TXV Receiver

1 Answer

Subwoofer not working.... JVC surround sound system 778V Subwoofer Part Number SP-PW37-SUB I hear a hum coming from unit so there's power going to it. I hear weak bass thumps with volume turned all the way...


A connectivity check could provide the solution, notice any wrong wire connections on device or any other devices requiring interconnection. The woofer would perform properly when the connections that provide current for woofing are approapiate

important notes
1. Trace the connection from Recorder or sound output to the woofer device
2. The wiring connections should be sound and video ouput into sound and video output into woofer.
3. The connections if any problems would be located at the stereo recorder or device producing the spund and video. Check the connections of wires on the recorder device ensuring rewiriing
4. finally, adjust the equalisers if any the buttoms could have been disbled by master switch hindering full blaster boost sound.

Dec 05, 2010 | JVC RX-778V

1 Answer

Sub goes full blown loud when plugged in to wall


It sounds like a power supply failure. It needs to go to a repair shop.

May 05, 2009 | Infinity BU-2 Speaker

1 Answer

SUB WOOFER PROBLEMS


design u r aucostics properly

Jan 10, 2009 | Infinity BU-80 Speaker

1 Answer

Bose acousticmass 15 sub-woofer making a noise


The sub contains the amp for the other speakers. But it sounds like the amp has a seriously damaged section and will probably have to be serviced by Bose.

Jun 24, 2008 | Bose Acoustimass 15 System

Not finding what you are looking for?
Infinity BU-120 Subwoofer Logo

Related Topics:

63 people viewed this question

Ask a Question

Usually answered in minutes!

Top Infinity Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5190 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you an Infinity Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...