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I have an Alpine 3672 crossover that produces a buzzing sound in speakers.

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You have to check the ground connection on the case (inside the crossover). Check if it is ok and it need only one, so if you have bolt it on a metallic part of the car try to undo this to avoid closed loops.

Posted on Mar 27, 2009

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I am a dj and i have a set of EV speakers but lately on speaker is giving me problems. It cuts in and out and the bass sound goes thin and the sound distorts. I have checked it with different leads and amp...

it may be an interanl crossover problem, you will have to open the cabinet to check and see if it looks like the coils (on crossovers) have gotten hot, (therey will be discolorationg on the coils) can bypass the crossover and power up the speakers (at low power/volume level) to test weather this is the problem or not, but it sure sounds like it. The cross over networks cost about 40 dollars the last time I checked

Mar 20, 2011 | ElectroVoice Audio Players & Recorders

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I have a Boston Acoustics VR-500 Subwoofer with a problem. As soon as anything is plugged into the line level RCA jacks, the subwoofer produces a loud buzz/hum. I have tried connecting it to the subwoofer...

I'm thinking you have an open shield ground on the RCA input side. Connecting speaker inputs possibly restores the ground. Try connecting the high level inputs then disconnect the remote end of the cables (floating the grounds).

Then get out an ohmmeter and find that open circuitor or bad solder joint between RCA ground and real ground in the speaker's amplifier. Or.... if speaker ground kills the hum and you want to use RCA Line Level input to the sub, just connect one minus speaker output on your source amp to one minus on the sub's amp.

Mar 01, 2011 | Audio Players & Recorders

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All the hight frequencies have disappeared. Everything sounds muffled. I've checked the EQ settings and the treble is all the way up. Any Ideas? A factory Reset of some sort?

It sounds to me as though your speakers are at fault, like the tweeters (and midranges in a three-way system) are no longer working. Have you tried another set of speakers to see if the sound is normal that way? There may be fuses or resettable protectors on the crossover networks in the speaker cabinets that have opened because of high volume levels or if the amplifier was driven into clipping by the program material. Or the speakers themselves or other parts on the crossovers may have been damaged. Check the speakers first, then look at the receiver if the trouble continues. If the unit has an electronic EQ with presets or pushbutton level settings, the processing IC may have gone bad.

Feb 14, 2011 | Sherwood RD7405HDR

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Do i need subwoofer with power or without power and how to make subwoofer sound on ??? just send me simple setup please ? cheers

Depends on your source and its amplifer complement. Some can drive a subwoofer directly while others just produce a Line Level subwoofedr output for use by a separate amp feeding a subwoofer or self-amplified sub.

The setting up of the source to produce a subwoofer output is totally dependent on its design. Generally, you have to 1) tell it you have a sub, 2) define how bass will be routed or shared among your various speakers accordingto their bass-handling capacities, 3) using test tones, set the relative ludness and crossover settings so you have a uniform sound field.

Name the electronics and get a better answer. Or refer to its manual.

Feb 11, 2011 | Audio Players & Recorders

2 Answers


is the mute on? Did the crossover get turned up? Check connections on speaker wires and ground. Manual EQ could be turned down also if available on this model

Mar 09, 2010 | Pioneer VSX-D510 Receiver

1 Answer

Surround sound does not work

If there are any power cords from other components near speaker wires the electric interference transmits through speaker wire causing a buzz.

Aug 20, 2009 | Denon AVR688

1 Answer

Integrate computer (huge MP3 library) into home theater sound (AIWA's fantastic speakers)

Sounds like the wiring for the speakers has been modified to bypass the crossover. Best to open up the speakers and see if there is a crossover. Both speakers should be wired to a crossover and the crossover wired to the speaker out on the amp. Crossovers can be bought from Jaycar in Aust or Madisound in US

May 12, 2009 | Audio Players & Recorders

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I need the Crossover diagram for the Infinity RSb speakers,thank's

I know of two crossover configurations for ths Infinity RSb speakers, one early model and one late model.
You will find the details on:


Apr 27, 2009 | Audio Players & Recorders

1 Answer

I have a 400 watt speaker and the board in not working and the the speakers and everything else is working good but i think that it the board inside the speaker.

the board that you are talking about is the crossover, does any of the speaker work the woofer or tweeter or midrange drivers? If the woofer does not work then take out the woofer and take the wires that attach to the speaker on the back and hook them directly to the speaker that you took out if it plays you need to replace the crossover in the speaker, this should be easy, just call the company that makes the speaker and order a new crossover, you can do this also with the speaker if there is no sound when you hook it up direct.

Aug 19, 2008 | Audio Players & Recorders

1 Answer

Technics sax-710 receiver Nht sb-1 speaker developed a buzzing sound when playing, Kids may have over drove speakers(not sure) Replaced with nht supezeros now both speakers sound very staticy like off...

The speakers have buzzing sound because of damaged cones.
Over driving speakers, especially with heavy low frequencies, can tear the voice coil away from the cone.
Once damaged, only replacement will help

Apr 24, 2008 | Audio Players & Recorders

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