Question about Snell PS.10mk2 Speaker

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I have a constant buzz tone coming from my subwoofer. I checked power connection, fuse and volume/crossover settings and nothing makes the tone go away. is there anything else I can do? Is it repairable?

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Hello,if your subwoofer cable has gone bad this will introduce a hum(buzz) into your audio.I suggest replacing the subwoofer cable, a standard rca cable will do,and see if the audio cleans up.

Posted on Sep 15, 2010

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Posted on Jan 02, 2017

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4 Answers

Klh powered subwoofer model ASW10-120B... when you plug in to power... it makes a loud buzzing/humming noise


I would check the caps on the power supply. They are rather large electrolytic capacitors that will look like they burst and/or leaking. When these die, the caps ground and the sub will make a loud buzzing sound. If you are handy with a soldering iron you can replace them yourself. Replace them with the same voltage or a little bigger and same with the size.

If the cap. says 16v 4700pF on it, for example, a 20v 5300pF or a 16v 6200mF cap. will work for this application.

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Jan 05, 2016 | Audio Players & Recorders

1 Answer

My subwoofer will not wake up, regardless of whether I flip the switch from Auto to On or not. Suggestions?


The sub settings for testing should be: Crossover frequency - Max; Volume - Mid; Phase - Normal.

As a quick test, unplug the sub cab from the amplifier/receiver end. Switch on the sub and turn the volume down all the way. Briefly put your finger across to short the RCA/phono tip and ring. The sub should make a buzzing sound. You now know that the sub is working and the cable appears to be okay or not.

If you've got power then that's a good thing. It could be something simple as a broken solder joint or bulging capacitor.

Aug 05, 2014 | Harman Kardon HKTS 14 System

1 Answer

I have a velodyne f-1200r how do I hook up to other speakers


The simplest way is to connect both the left and right channel speaker wires from your amp or receiver into the speaker wire connections on the back of the sub labeled "From Amplifier"

Then connect speaker wires from the adjacent terminals labeled "To Speakers"

What you are essentially doing now is using the internal crossover of the subwoofer where you determine at what frequency the sub begins to blend with the other speakers.

This is done with the Crossover knob just above the speaker wire connections.

Whatever you have this set to, the main volume will now raise and lower the volume of the sub and main speaker together but you can still make the sub louder or softer as compared to the main speakers by using the subs volume control.

Defeat all tone controls on your preamp or receiver and use only the crossover knob and sub volume until you achieve a seamless blend where you cannot tell where the sub is and it is an extension of the speakers from where you will be sitting.

TIP:
DO not evaluate from the sub itself because the room shape and acoustics are drastically different everywhere ESPECIALLY when you are dealing with bass frequencies.

Can I assume you know how to set this?

May 31, 2014 | Audio Players & Recorders

1 Answer

Subwoofer makes noise like an untuned TV regardless of volume knob


I would suggest your crossover unit has failed in the speaker cabinet. The crossover circuit board separates the low and high frequency content of your stereos audio signal. The low frequencies go to the bass unit (woofer) and the high frequencies go to the tweeter speaker. If the capacitor on the crossover goes open or near open circuit then noise is introduced into the sound system. Replace either the capacitor or crossover unit.

Jan 18, 2014 | Cambridge Audio Minx X300 - Powered...

2 Answers

Cannot get the subwoofer to play...all other speakers work fine...my Kenwood receiver is VR-309...the subwoofer model is Kenwood SW32-HT... I have also used the setup mode to make sure the Subwoofer is...


After making sure that your subwoofer is receiving power, as most models have their own amplifier, make sure that it actually is turning on. There is a possibility of a faulty power switch. Lets rule that out first.
Once the switch is on and the proper power connection is verified, turn your attention to the setup menu on your receiver. Navigate to the LFE/Sub output level. Adjust it up all the way. Then navigate to the crossover setting. Turn it up all the way. If the subwoofer also has it's own control panel including a crossover, turn that up all the way as well. Then with an input on the receiver that has a subwoofer output set up such as for DVD, play some audio. Or likewise you can also use the receivers' test tone capability that will pan each channel individually with a wide band pink noise signal that also includes a signal sent to the subwoofer output.

If this procedure does not produce results then send me a message including your subwoofer model and your observations of your systems' operation.

Jun 10, 2011 | Kenwood VR-309

2 Answers

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

1 Answer

Constant noise from Mirage NanoSat 5.1 System Subwoofer


sounds like an earth fault either with the plug circut or more likely with the power board of the unit.

Jan 06, 2010 | Mirage NANOSAT 5.1 System System

1 Answer

Sleep mode


It will power off if the frequency range of the signal being sent to it is set too low, or the amplitude of the signal is too low as well.

Try increasing the subwoofer crossover frequency and/or increase the gain from the LFE/SUB of the receiver/preamp you have it connected to. Also make sure that in the setup menus of ALL of your components have an LFE channel enabled such as by selecting the output of source material of your DVD player for example, to output 5.1. Otherwise, it will not send a signal for the subwoofer to play, nor will it play the signal if the crossover frequency is set too low.

Example; the setting on your DVD player setup menu is set to two channel: result with only one exception, subwoofer will not play

Example; subwoofer/LFE level on receiver/preamp set to -10dB and/or subwoofer volume too low. Result: subwoofer will not play.

Example; subwoofer crossover point set at 35Hz. Source material playing sound at 30Hz and lower. Result: subwoofer will not play.

Nov 23, 2008 | JBL PB10 Subwoofer

1 Answer

100watt sub


There is a problem wwith teh power supply or the amp section. Does the noise remain constant or does it vary in volume? The sub should have a level control, does the noise vary with that control?
Dan

Mar 19, 2008 | Kenwood SW-38HT Subwoofer

1 Answer

Subwoofer has a constant vibrating tone that will not go away


I suspect that what you are hearing is the 60 cps of the mains. If the humming sound is coming the subwoofer itself, then it is possible that you have a defective/leaky capacitor in the power supply section of the subwoofer. In the subwoofer, if the buzzing sound is coming from anywhere else other than the speaker itself, then it is possible that you have a loose transformer again in the power supply. Unless you are comfortable working with testers and soldering irons, I would suggest an electronics technician who should be able to diagnose and fix it for you.

Apr 02, 2007 | Dell Powered Subwoofer Set A425 Computer...

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