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PS Audio Power Plant Premier THD Output Results

I recently purchased a used PS Audio Power Plant Premier.

After installing the unit and plugging in my LED TV, Oppo Blu-Ray Player, and Marantz Pre-Amp I checked the PPP's THD output results and I am getting a 1% THD on the output.

I sent an email to PS Audio and was told that the PPP should be providing me with an THD output of .4 to .5% in order to be working properly. The tech at PS Audio suggested that my PPP may need to have the regenerator rebuilt at a cost of $250 plus I have to pay for shipping both ways so I am looking at a $300 repair bill.

Basically, I would like to hear from any PPP owners to find out what your THD output readings are when you have your connected gear powered on and running through the PPP.

I am a bit skeptical that there is a problem with my PPP as I am getting a THD output of 1% which is only .5% higher than what PS Audio claims my PPP should be delivering.
southernphoenix
southernphoenix OP
11 posts
 
Roscoeiii,

Please send me a message via private email.
ait
480 posts
 
I've had both the PPP and the P5, and the P5 is by far a superior unit. Better built, better performance in terms of % distortion, and it sounds better too (more punch in the bass).

I'd recommend the upgrade from the PPP any time.
southernphoenix OP
11 posts
 
I'm sure the P5 is better, it also costs $3,500 which is way more than I can afford and would ever spend on a piece of gear like this.

I'll stick with my PPP for now and one day when I can get a used P3 or P5 for under $1,000 I will upgrade.
lewinskih01
909 posts
 
Anyone knows how to measure THD in my mains without a PS Audio unit? Can you point me to article/website? Seems like a reasonable proxy to understand the likely impact of adding one of these to my system.

Thank you!
southernphoenix OP
11 posts
 
I think you would need an THD meter and from what I understand those are very expensive so your best bet is to buy a PPP or find someone who will let you use theirs to check your THD.

I am currently getting about 2.5% THD input which from what I have been told is very low.

It will depend on a number of factors including your A/C coming from your wall outlet in addition to the gear that you plug into the PPP. Each time you add a piece of gear to the PPP the THD input values will increase.

When I first hooked up my PPP I had my power amp hooked up to it and it increased the THD by over 0.5% on the input so I removed my power amp from the PPP. It also raised my THD output by that amount as well. It is better to not plug your power amp into the PPP.
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