Originally Posted by Rob Morse
RF dimmers would be light dimming switches that use radio frequencies to remotely control the dimmer in the fixture as opposed to in line potentiometer based dimmer switches. We have seen issues with some brands causing interference with some woofers creating a similar issue, but I can not recall that ever happening in the Micro-Vee.
My recommendation would be to go to the shop and have them demonstrate that it works, take it home and try it there. If the problem shows up again in your home, take the sub to a friends house and ask to try it there. If the problem only shows up in your home, then it is something environmental. If the problem can be duplicated in the shop or at another location, then lets get that amp panel into our facility for warranty service.
The shop is located out of town, about 4 hours from my location etc, I basically had to ship it to them (Authorized by Velodyne ~ Pete Louis ) so I won't be able to go in and see if it works or not.
I don't have any remote light dimming switches etc...I have never heard of a sub having interference from radio freq's etc. I have a Wifi router and a Cell phone (+ a cordless phone that uses dect 6.0 technology etc.) But I find it hard to believe these RF waves can penetrates through 1/4" of aluminum plate.
This is what I noticed, when I first turned the sub on it wasn't doing it for a few seconds so I assumed the issue was resolved,( or I plugged the cord in backwards) when I went to adjust the crossover at the back, the radio noise kicked back in instantly, dunno if that was related or not, but the sub was quiet momentarily,...that's when I decided to try a different source input, since the noise stopped momentarily, so brought the subwoofer downstairs into my Home Theater area and plugged it in direct RCA inputs (LFE input on the velodyne)...being in a different area in the house and using a completely different wall socket and source I assumed the problem might be resolved, but it still reproduced that Radio noise through the driver itself...although the driver works normally and produces bass with no distortion or any type of lag, but a low volumes or when you remove the source input, the Static noise still persists. It sounds like pink noise , a type of sound emitting noise you use to do Room EQ correction and place the mic in front of the speaker (basically it's supposed to reproduce the full freq spectrum for 10hz all the way to 20khz) etc otherwise I would describe it mostly as radio channel noise.
I don't want to pay to have it shipped to velodyne, so I will call the shop to ship it to you guys if necessary to look at the amp...this amp was refurbished by Velodyne and re-sold, so it could have gone bust again possibly...so maybe it's better if velodyne looks at it and get thier opinion, maybe they can create the problem and replace the entire amp itself if necessary.