Once again, DeOxit! That is all i am going to say.

 We don't have DeOxIt here. Instead, I used Kontakt PRF: man, what a difference! Problem solved, knobs feel so different now!

 very smooth almost like no resistance...glad this worked out for you...I really think this is the cure for the reported ills...still enjoying mine and never had a relapse of this problem...never had to reapply the cure...enjoy and cheers!

Bill

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

Elameno:

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.

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 feel I should preface this post with the fact that I own an original set of promedia 4.1s purchased in 1999 and not the 2.1s.  As I rarely connect the rear speakers anymore, and since this thread was active today I thought this the best place to complain/share. 

Anywho... After owning them six months the static volume knob twists began to manifest, but as I seldom adjusted the volume with the knob it was never really a problem.  After two years and a move, the static riddled twists also often resulted in a loss of the left channel of audio (at the time, something I attributed to being damaged in moving).  Starting today however, in addition the fun stuff above, the right channel has considerable distortion on all but the highest frequencies (call it 5-10kHz on up), and lowest volumes (probably just can't hear it). So I'm going by radio shack tomorrow to pick up my can of deoxit, but I figured I'd ask the community their thoughts before I pulled the trigger.  

 Also, before I pm Mister Clean for a new control pod (what with its fancy on/off switch and accessory jacks), the company I work for is a direct dealer for Klipsch, and I was wondering If Klipsch themselves still offered the CP-1 so that I might purchase it at a discount.  

 Well, thanks for listening, any help would be much appreciated.

 p.s.  If you're out there reading this Klipsch... seriously, come on.  At least publish the model numbers of the potentiometers used so people can do something.  It's almost the least you could do, as opposed to the nothing you seem to be doing now.

Perhaps when the Z-5500s drop under $200 shipped again...

Hey Colin, Klipsch no longer sells the CP-1 control pod, they had them in stock for maybe a week about a month ago, I wish I knew they were going to run out so fast, I would have ordered as many as possible. I may have a good one coming in though so let me know.

colinschenck:

So I'm going by radio shack tomorrow to pick up my can of deoxit, but I figured I'd ask the community their thoughts before I pulled the trigger.  

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!

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.

I had the same problem, easy fix, open the speaker with the volume pot, and then spray some DeOxit into the pot and turn it back and forth for about a minute, it will start to feel looser and kind of "cheap" feeling, but that is a good sign, then spray a little more and do it one more time, after that you should be all set. And then you can wire them in with your M-Audio av30's, and have a killer sound mix, of course now i have to wonder why you didn't just go with the av40's? and also for powered moniters the KRK Rokit's are excellent, and i know for a fact that they stand up to the test of time. My Buddy Chris has them and he can kill just about anything, he has had his for atleast 4 years now and he abuses them, and yet they still keep kicking! But let me know how those M-Audio's work out for you over time, I like them as well and they are inexpensive, I like that! lol.

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!

 Another "me too" reply.  My PM 2.0 speakers lasted about 14 months.  I realize I can fix them temporarily with the DeOxit, but I really don't think I should have to.  $100 speakers should last longer than a year.  I have two pairs of Yamaha speakers.  While neither of them sound as good as the PM 2.0s (while they worked,) they have also lasted me 12 years with no problems, and the more expensive pair only cost $60.

 The fact that Klipsch made a bad product is no big deal.  I'm sure most, if not all, manufacturers make a lemon every so often that dies prematurely.  What really angers me is the way they've handled it.  When I emailed Klipsch and mentioned that they were out of warranty, I was told that I should send them somewhere else for repairs, which I would have to pay for.  I asked if they could just send me a replacement potentiometer so that I could solder it in myself and was told that they don't do that.

The reason I picked Klipsch after carefully evaluating my choices was because I assumed:

1. Klipsch made a better product
2. They would stand behind it if anything went wrong, even if it was out of warranty

Being wrong on #1 is no big deal, but Klipsch's apathetic response to it was really disappointing.  I bought the PM 2.0s thinking that I'd be able to use them for 10+ years, just like the Yamahas, only with better sound.  I only got one year out of them. 

 This was my first Klipsch product, and it is most certainly my last.

Just adding the the other responses...I purchased my speakers 13 months ago and have started having the same problem...static and right speaker cutting out related to the volume knob.  I'm going to try the DeOxit, but must say I'm very disappointed with the way Klipsch is handling this problem and will not be purchasing anything else from them.

 DeoxIT is NOT a temporary fix...mine have been powered 24/7 for over a year now after the one time DeoxIT...never had the problem again...the DeoxIT will clean the pot and leave just a bit of lube behind...I believe this little bit of lube is what is missing...so give 'er a try and please report back...I think you will be happy again...

Bill

It would have been nice if Klipsch had replied with the DeOxit fix months ago when I contacted them, but they didn't.  Instead, they told me to pay to have them fixed.  I didn't see this thread about the DeOxit fix (I didn't know Klipsch had forums) until recently.  By then, I had already yanked the amplifier out of the enclosure (Klipsch said they would not ship replacement pots either,) and turned the PMs into passive speakers for an external amplifier, as the drivers and crossovers are still good.  I ended up replacing them with a pair of Alesis, which I'm guessing will last a lot longer than 14 months.

Once again, my problem isn't with them building a faulty product--that happens.  My problem is with their "it's out of warranty, so you're screwed" response, and their inaction and apathy.  I expect this kind of customer service from some no-name company based in China, but not from Klipsch.