just reporting my personal experience with my power plant - it has made a big difference in my system. i personally find it much better than filter based products. we live in a city apartment so there is lots of potential interference. for me it removes the “time of day” difference when listening and surprisingly cleans up our TV picture too. you will need to judge for yourself whether its worth the money. for me personally, in my system it is great and makes a noticeable difference.
4 Likes
There’s a new review of the $299 MiniDSP ADC over at ASR. The little guy is exceptional with a SINAD of around 117dB on analog inputs arriving via XLR or RCA. Using a device like that a handy person could easily measure the output of their DAC (and DAC + AMP using one of MiniDSP’s calibrated microphones and REW) and see whether power conditioners or filter devices might be helpful.
I’m guessing that there is a corner in the graph where older linear power supplies crossed with sagging power or some industrial equipment on the branch circuit are, in fact, improved by them. For $299, though, it seems thoughtful to invest in the measurements before an £8000 buy-in!
2 Likes
One could possibly use a cheaper and better suited device like …
2 Likes
Beautiful setup.
1 Like
Some comments from Paul McGowan:
No. Just no. They build ridiculously expensive “power plants”, don’t they? What would you expect them to say?
5 Likes
Absolutely fantastic and at that reduced price a bargain
No, TCP/IP networks don’t need filtering either. Common mode and differential mode filtering is already baked into the standard architecture.
Some of you guys really like to spend big money for zero return.
As has been mentioned many times, sort out your room and your speakers. That’s where the big, measurably and audibly provable gains lie.
8 Likes
Or donate to my speaker upgrade fund 
1 Like
Mate a TCP/IP network to an analog device with noise and SINAD measurements that have improved significantly in the last ten years or so (in no small part due to the work done by ASR) and you discover further work was needed there. Thankfully this work is now being baked into devices so they seems less relevant but that hasn’t always been the case.
And to be clear, I’m no fan of ASR because of the toxicity they bring to many discussions. But I am sufficiently clear minded to recognise the focus they have brought to bear on certain aspects of audio performance that have been positive.
I’m incredibly skeptical of network filters. No one publishes any measured data on their performance (other than ASR). And frankly when audibility and masking are taken into account, it’s extremely unlikely that any network filter will made an audible difference.
I have no issues with ASR and toxicity. You should read some of the toxicity on some of the audiophile fora. Makes ASR look very tame by comparison.
7 Likes
Its a complete waste of money
3 Likes
save your money
2 Likes
My experience with my P3 is similarly positive. Audible improvements to noise floor and instrument definition. I have owned an AudioQuest product before and did not get the same results. There are other companies making power products besides PS audio but I chose the P3 which I got at a great price and am happy with the results for the cost.
1 Like
Given the measured flaws of the P12 (increased noise floor!), It would be thrilling if you might measure the performance, before and after, of the addition of the P3 to your chain. For a fraction of the cost you can get measureably-excellent ADCs (see above) and confirm your observations thus convincing the world of the value of these products!
2 Likes
My ears are all the measurement I need personally
1 Like
Sure, but you must at least grant credence to the notion that your perceptions might be flawed when making an expensive purchase decision? If I’m acquiring something I generally try to establish a value proposition that is cross-checked along multiple dimensions, because that money could work better. Just a wee bit of epistemic humility crossed with economics leads to a modicum of doubt.
At least that’s what the P12 measurements showed.
3 Likes
These heavily overpriced boxes are not meant to be measured and compared. They are more or less pure luxury items which may or may not serve a primary purpose (in relation to the asked price).
You usually buy such products not for a factual primary purpose but because of a mental desire.
Thus, talking about or demanding factual proves is rather academic here, at least when it comes to claimed improved SQ for devices if plugged into such boxes.
But… there’s at least also a legal aspect here when it comes to manufacturers’ claims such boxes are said to have. And here PSA do make claims regarding audio/sound improvement. Maybe such claims are still too vague to be judged as illegal in the US. But I’m pretty sure if you’d measure it carefully nothing of this will be proven as being correct.
But this does rather not change desire for such items.
3 Likes
there are plenty of comparisons and measurements - maybe not in the places you would care to look - and if you are implying that manufacturers fabricate the effectiveness of their products…
BTW I am an electronics engineer.
Not talking about electrical/power benefits they may deliver. It’s about claimed audio improvements. Please quote or share some links 
.
We should avoid saying something like “I am an xyz engineer with decades of expertise”. Such phrases don’t prove anything in the context here 
2 Likes