Purepower 2000+ and 3000+ actual availability???

Hum from speakers.

Since the introduction of the PurePower+ There have been 2 customers who suffered from hum that appeared in their speakers.

By definition, hum emanating from the speakers represents an unwanted signal that has entered the audio signal path through one of many possible routes. In the particular cases that the hum appeared after installing a PurePower+ unit we very strongly suspect the path is through a ground loop. We suspect ground faults because of our prior experience with similar symptoms over the years that were resolved by finding and eliminating ground problems.

We do know that there is no inherent electrical characteristic of the PurePower AC output capable of affecting the audio signal through the AC supply. Nonetheless we returned both units to our factory to be absolutely certain they were operating perfectly. They were.

We suspect we have not convinced these now former customers that with perseverance, the cause of the hum could have been found and eliminated through the right diagnostic method and signal tracing tools. Unfortunately we could not resolve the issue and they are now operating without the benefit of our product. I think it is fair to say that both expressed a clear wish that they could enjoy the PurePower benefits – hum free. Thus, they are hoping we will be able to modify our product in some way to solve the problem.

For our part, we wish we had the time and resources to make house calls and help them install our product and find and remove the real hum source.

So our answer has to be no – we are not working on fixes for hum by changing the PurePower electronics because we are absolutely certain PurePower technology does not, and can not, cause hum.

Purepower, I wish I could believe what you have recently posted.
I was very serious about buying one of the units until I started reading this thread and actually many others on this site and other sites.

People were posting about the very poor communications they had with Purepower and that products received were dead on arrival or the battery wouldn't keep it's charge, etc.

I volunteer to be a test subject to try one of your current models and then I will post my experience.

What confuses me most is the account of Pure Power+ units that have hum, while for at least one owner there was no hum problem with a non-plus version of Pure Power regenerators.

Purepower: Add me to the list of non-plus PP unit owners who did and still do have no issue with hum or buzzing through the speakers in their high-end system with the prior generation of product. The problem only turned up when I replaced (within a 30 minute period to swap units)the 2000 with a 2000+. I experienced the problems, even with pre-amp set to 0 (no volume, 0-relative scale) the humming and buzzing could be heard across the room 10-12 ft away. I powered down the 2000+ unit, put the 2000 back in and it has remained since December of last year with the system sounding as great as ever.

Prior to the 2000+ arriving, I had my contractor go over my entire dedicated circuit as I was assessing putting in a copper breaker bar sub-panel or a 2nd house main for my system as well as the possibility of putting in a separate dedicated (isolation) transformer. My contractor as it happens built a recording studio for a very famous British Singer-Pianist (initials EJ) for his house in Atlanta so I'd venture a guess that he knows a fair amount about what we are talking about here (high-end audio systems). He tested and went over everything pronouncing a clean bill of health.

Following the arrival and near-immediate departure of the 2000+, I paid another electrician who has a reputation in the area for putting in electrical circuits and wiring for complex Home Theater, 2-channel and 2 recording studio setups from the NC/SC area to put in 5 Avatar Acoustics Afterburner8 outlets and inspect all aspects of my dedicated circuit as well as the grounding scheme for the entire house and dedicated circuit. Again, the result was the same...a clean bill of health from a certified electrician with experience putting in and trouble-shooting complex audio and video setups.

I am mystified by the claim that these problems were not the fault or at least related to something in the 2000+ unit as it is very clear in my experience what happened;

- setup with dedicated circuit inspected/blessed by two audio-knowledgable electricians about 10 months apart
- PP 2000 in this system for well over 2 years does not have issue
- insert PP 2000+ in place of 2000; issues arise
- remove 2000+, replace with 2000 (no other changes); issues go away completely

PP: Take a look at my system and others; do you really think based upon the investment in question that I and others are just sitting there with systems that make all this noise already without the 2000+ in place and we are happy with it? You don't need to make a house call here,...the problem did not exist before your new unit went into the system and disappeared after your new unit was removed. PLEASE consider that there may be an issue here that your own electrician-style bench testing without a high-end system and dedicated room in your production facility would not uncover. If you do want to make a house call (I am serious), bring a 2000+ or 3000+ and I'll put it into my system and you can hear what i am talking about. After all this, I love my PP 2000 to such an extent that I am still hopeful that you will wake up and consider all this and produce a 2000+ or 3000+ unit that won't manifest this issue in my system so I can buy a new version of your product!!!

I wish I could believe PP also but too many have posted bad customer support and follow thru.