Elameno

I had already done the deoxit trick which helped quite a bit, but then I still had the issue with the coming in and dropping out repeatedly which is why I bought the extra power supply. When I realized the PSU wasn't the only remaining problem I just threw in the towel. I don't have the time to keep fiddling with a finicky set of speakers right now so...oh well. As far as the AV30s go, I didn't get the AV40s partially because of desk space and also budget. I have another set of much nicer M-Audio speakers in another location that I can use for final music mixes if I need to and I just needed some cheap but decent computer speakers that won't give me the headaches that I've been having with the Promedia Ultra 2s. I hadn't ever looked at KRK. I'll keep them in mind if I'm ever in the market again. Thanks for the heads up!

I decided to try and fix the problem with a new power supply. It turns out that I did have a faulty connection there and so it fixed the issue where the speakers will come in and drop out rapidly; however, I still have other problems that were not fixed. Usually after an hour or so of usage the right speaker will still drop out partially which can sometimes be fixed by fiddling with the volume pot, and sometimes not. I contacted support and they mentioned a possible fix would be to blow compressed air into the control electronics, which I did, but that still did not resolve the issue. After going through all these motions and not having total success I have broken down and purchased a pair of M-Audio AV30s which I hope will stand the test of time. It's a shame because these speakers sounded phenomenal for their size and price.

The deoxit did the trick for me. After removing the face plate and the rubber knob cap I gave the volume pot a couple of treatments letting the Deoxit seep down through the front of the volume cap. After it dried out the thing is almost good as new. I still hear a little bit of static at the very high end of the volume setting, but it's barely audible and it's clean as can be through the rest of the rotation. Best of luck to you!

Just an FYI that currently I'm propping up the power cable with an old battery which keeps it in a position where it never has an issue with audio popping in and out on me.

I've had my PM Ultra 2.0s for a couple of years now and have loved the sound. I have had two problems with the speakers thus far (the second problem an ongoing issue): Problem 1: I've experienced the dirty volume pot problem which was causing audio drop outs in the left speaker and terrible noise when the audio volume knob was rotated. Solution: I used Deoxit cleaner on the volume pot and it cleared up the issue like magic...no more snap, crackle, pop, or loss of audio in the left channel due to the volume pot. Problem 2: I'm now experiencing the audio dropping out of the right speaker, either completely, partially, or coming in and out rapidly. On occasion the audio in both speakers will come in and out rapidly (about two or three times per second) with a high pitched clicking sound each time it comes in and out.I took apart the speaker in search of loose wire connections and found none. After reassembling the speaker I believe I have now isolated the problem to the power cable (near where it attaches to the speaker). I can make the problem appear and disappear by fiddling with the position of the power cable which leads me to believe that it is caused by a failing/shorting cable. I initially thought it might be the three prong power connector on the unit, but now I do not believe it is the power connector as I can hold that thing tight (in an isolated position) in the socket and still cause the symptoms by fiddling with the power cable's position. Proposed Solution: I think that perhaps splicing the power cable at the end where I'm having issues OR replacing the power supply/cable might be the only way to go. Sadly, the power cable and power supply are a single unit so I'd have to pay $25.00 for a new one. Has anyone else had this problem, or can they check to see if this is the cause of their issues as well? Dave