View Full Version : Noisey Spots...
29-11-2005, 10:47 AM
I have 6 Spots installed in my Home Cinema Set-up which are connected to Lutron Telume Dimmers.
The dimmers are working great but when I drop the lights to dark there is a definate buzzing noise from the spots.
Has anyone else experienced this and is there anything I can do to combat it?
29-11-2005, 11:35 AM
Not only does my spotlight buzz, all the speakers buzz with them. I don't know if it is the Lutron dimmer, the 12volt transformers in the spotlights or both. What I do know is that they annoy the h**l out of me and I have to turn the light of to get rid of the buzz. :(
I don't think I'll do anything about it though as I move in 6 months.
Someone told me that you get spots that doesn't buzz and if the dimmer and spot is the same brand it usually helps. :?~:-?~:???:
29-11-2005, 11:38 AM
Aw, nuts...big problem then! It is a helluva buzzing noise and I hope my speakers don't follow suit!
I like the dimmers, but I don't know if I can put up with the noise!! :(
29-11-2005, 03:51 PM
Actually if I reluctantly changed the dimmers would this stop the buzzing?
I have only really noticed it since the dimmers were installed!!
29-11-2005, 05:21 PM
If these are electronic transformers they have a minimuim load, at lower lighting levels you are probably under loading the transformers.
I have a Futronix and mine pulses the lights as well as buzzes at low light levels. I have solved this problem by putting two lights on one transformer an adjusting the lamp sizes to maximise the loading of the transformer.
29-11-2005, 11:50 PM
I think the problem here is having low voltage lights with transformers.I had a set of lights when I was re-doing my room,and I used the standard spots.I was playing about with my new Futronix dimmer and as you said, I was getting a buzzing sound, and it wasn't quiet.
My best friend is an electrician, he suggested to me, that if I wanted spots, that I should try the 240v GU10 type.Problem solved solved straight away.My other two sets of lights that are different bulbs but still 240v mains lights , didn't buzz when I tried the dimmer, just the spots with the 12v bulbs and transformer.
Les I know you are in the last throws of completing your HC room, but is there any way you can have a word with your sparky and ask if it's possible to try something else, and hopefully without to much hassle.
I hope this helps.
21-02-2006, 11:47 AM
Just found this post again and if you look over at my build or my HC set-up is complete with the halogen spots connected....however I still have the noise issue!
Could this problem be simple to solve as just changing the bulbs?
When I walk into the room you can hear the hi-pitch tone from the lights...this only rectifies when the lights are on...not good when I need it pitch black for movie watching!!! :(
So if I changed all 6 halogen bulbs to a higher wattage (240V) this should rid me of the noise? However with a higher wattage is there a problem of the lights blowing more often?
Also would it be a 50 watt bulb suffice?
22-02-2006, 01:34 PM
I think you have missed the point Montana was making. Your spots use a transformer to step the 240 mains volts down to 12 volts to run the spots and it is the transformer that is buzzing when driven by a dimmer switch. Therefore you will have to replace the entire light fitting and remove the transformer or ditch the dimmer. The wattage of the bulb is irrelevant.
Hope this helps.
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