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Speakers humming after a power outage - Altec Lansing ADA 885 Computer Speakers

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The subwoofer output on my Kenwood VR-606 has suddenly stopped working. I have tried the "setup" several times, turning the subwoofer off and back on. Also, when I first power up the system, it emits a low...


It sounds like the problem is not with your VR-606. If you hear a hum from the sub, the problem is more likely to be in the sub's built-in power amplifier. However, it is worth resetting the amplifier to factory presets. To do this, unplug the power cable from the mains supply and reconnect whilst holding down the power on/standby key. If the hum persists, connect any powered speaker to the sub-out socket, power on and listen for the hum. If no hum then suspect the powered sub amp. Turn the sub on with no connection to the Kenwood VR-606. If hum persists, the sub has a problem and will need to be replaced or repaired. By the way, you said there is a low frequency hum through the 'speakers' for about 30 mins. Is that all speakers or just the sub? Hope this helps.
Cheers, Don.

Jul 06, 2014 | Kenwood VR-606 Receiver

1 Answer

Behringer Truth B2031A major hum in both monitors


Could be when the power outage the speaker was blown a little. If not check the wire connections.

Sep 10, 2013 | Audio Players & Recorders

1 Answer

Hum in my eons


The hum is because your connecting your speakers to the same power strip or extension cord, try connecting each one from different power source. I had the same problem with mine.

Feb 18, 2013 | JBL EON 15-G2 Powered DJ Speaker With EQ...

1 Answer

Mixing board hum


AC hum comes from poor grounding of components.

Jun 21, 2017 | Music

2 Answers

When i turn on the power for my speakers it hums like crazy


do they hum when you unplug the audio jack from the PC?
If they stop humming when disconnected the problem will be down to a bad earth connection on the motherboard, or a failing power supply (rectifier circuit)
Humming is normally a result of voltage potential and the 50hz frequency in the mains.

Hope this helps

Apr 22, 2012 | Altec Lansing VS2621 Speakers

1 Answer

The sound is not working on my Hitachi L42Vc04U tv


Before you assume the set has a audio problem here are some other possible causes to at least explore:

Speakers in the set (menu) are switched off.

Volume and set and or box turned way down or muted.

Internal/external speaker setting set to external

Audio works with a DVD etc connected to rear a/v jacks

Set suffered a power outage=unplug set and boxes and wait--plug both back and see if fixed or not.

Set does display on screen audio level or not--same for a box if used.

Check all audio settings in set and box carefully


If all these fail do you hear a hum or very faint audio from the speakers?

Apr 11, 2012 | Televison & Video

2 Answers

Midiland 8200 (ADS 4000 controller) 5.1 hum problem


You may have an earth loop problem. This is caused by connect various equipment to different mains power outlets.
Connect all the PCs, audio and speakers to a single mains power outlet, use a power board so they are connected to the one mains power outlet.
I suggest you use a power board that has a built-in surge protection.

Nov 14, 2011 | MidiLand S4 8200 Computer Speakers

3 Answers

Two speakers hum noise


Very doubtful that hum issue is ground potential difference from multiple power outlets as power cord is not grounding type (it is transformer isolated). I do agree that it is good practice to connect all audio equipment to common power strip though, especially with pro sound. Check the audio cords connecting your speakers to the coumputer sound card: 1) Make sure they are connected to the correct jacks and plugged in all the way, 2) wipe the connectors off with a clean paper towel wetted with a smidge of WD-40, 3) replace cords if all else fails. I have also seen solder joints fail on the power supply capacitors (due to vibration) causing hum -- but leave this repair to an electronics technician due to dangerous voltages.

Sep 25, 2010 | Altec Lansing AVS 500 Computer Speakers

1 Answer

Humming speakers


If you disconnect the signal leads and the hum is away, it's probably a groundloop problem, or your equipment is generating the hum.
If it does not go away, the amps are defective

Sep 23, 2009 | Mackie SRM-450 System

2 Answers

Humminf sound from subwoofer


Most humming sounds in speakers is due to electrical currents or wifi signals nearby the speakers.

Do you have any electrical cables near the speakers? Do you have any wifi device near the speakers?

If so move them out/away and see if there is any difference.

Jun 02, 2009 | Creative Labs I-Trigue 2.1 3300 Computer...

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