PS Audio P500 - First Impressions

Posted by: David Sutton on 18 December 2003

Hi Everyone,

I have finally received and installed a PS Audio P 500 regenerator in my system. This is a relatively new component in the range from PS Audio. There have been comments in the past regarding the P300 that it has replaced. The new unit has a number of significant differences over its predecessors.

As I understand it, a regenerator is a type of power amplifier that produces a steady signal (at say 50Hz) with an amplitude that reflects the required voltage (say 240V). This is an alternate to the filters that are available on the market to try and sort out mains problems, together with the dedicated spurs etc.

The unit, in its UK setup, features three regenerated supplies for source components, and a separate filtered outlet (using their Ultimate Outlet technology) for power amps or other larger current demands.

The regenerated supplies feature up to 500 Watts of power delivery with a number of other options for tweaking. Firstly, the signal that the unit produces can be varied from a pure sine wave. PS Audio have developed MultiWave II that modifies the shape of the wave form to suit or enhance the performance of particular equipment. There are a number of wave form options, but as an example, MultiWave 1 takes a single 60Hz sine wave, and adds a small amount of 3rd harmonic sine waves to form a single partial square wave. PS Adio say this improves the ability of the audio equipment to charge capacitors by extending the time available to "top off" the capacitors voltage. There are 4 MultiWaves, along with a Tube Wave (for valve equipment), a pure sine wave, and AutoWave. This last setting automatically selects different MultiWaves, depending on the dynamics of the power load. This selection is made continuously as the power factor changes.

MultiWave is all well and good for my SuperCap and XPS. However, the motor on the LP 12 did not like it at all but was superb with the Sine setting.

The unit allows for modifications in the Voltage from 220V to 250 V. This is a very interesting tweak to play with and I have not yet arrived at a final prefered setting as the best voltage seems to vary depending on the type of music.

It is also possible to modify the frequency from 50Hz up to 120Hz, allowing the Armageddon to play 45 rpm records (not that I have any).

The use of the unit has so far been one of those great experiences of reaching for more and more old favourites to explore this units capabilities. It ahs certainly scored in terms of quieting down the transformers in the SuperCap and XPS. But the equipment now produces music in a beguiling way that I had not previously heard. New information is there. Musical notes stop and start in a distinct manner. Low level background sounds are more discrete. Dynamic range is stupendous.

In the past, I have fitted a dedicated spur, a dedicated ring main and tried a Russ Andrews SuperPurifier. None of these managed to sort out the problems with mains borne garbage that we suffer from here. However, the differences with this new solution are quite dramatic.

Now the bad news. In UK, the PS Audio distributor is Ultimate Sonics. They are astoundingly unhelpful. In the USA, a UK configured P 500 (230V with UK style sockets and mains lead) costs US$2499. In UK its GBP2400. With the current exchange rates the prices are very naughty. A US configured P500 is US$1999 on the web. My order, through Audio Outlet, has taken nearly three months to sort out. They sent a European configured unit first time around, then got stuck with production issues at PS Audio.

However, the wait was worth it. The transformers are silent and the music is brilliant. I will report further went I can advise more on the tweaks to wave form, frequency and Voltage.

Seasons greetings to all!

David
Posted on: 19 January 2004 by David Sutton
Well Rich,

You managed to get your P500 alot faster than me. I will be interested to learn how you get on experimenting with voltage. I have mine set at 246 Volts at present as this seems to give the sound a special clarity at the start and ends of notes.

Good luck, the P500 is a very useful improvement to my system, ranking up with the installation of Mana equipment stands in terms of improvements.

David
Posted on: 19 January 2004 by David Sutton
Hi Peter,

Sorry I did not answer your query. I use my P500 with a CDX and an XPS. I have not recently disconnected the CDX from the system as it would be a step backwards for me. One of the driving forces behind me getting the P500 was the abysmal standard of mains supply in Abu Dhabi. The P500 allows my system to produce the quality of music that it is capable of.
I suspect that in your case you are probably better off getting an XPS, as this power supply will look after the specific requirements of your CDX.

The best answer I guess is to try them both out with your CDX, if possible.

Good Luck

David
Posted on: 20 January 2004 by JohanR
quote:
Johan: The computer supplies you speak of do not do the same job as the PS Audio. I've tried 'em and they're abysmal.


Okay. But how exactly does they not do the same job as the PS Audio?

JohanR
Posted on: 20 January 2004 by Peter Stockwell
Rich & Dave,

Thanks for the responses. I know at the end of the day I'll have to give it a try to see if it works. With a money back guarantee that shouldn't be a problem. Except there's no PS Audio distribution in France and it would have to come directly from the US. Which oought to be cheaper, but there's all the shipping hassle to consider. I'd like to have an idea of what it can do for 2500-3000€, which is about the price of an XPS. If I had an XPS I wouldn't disconnect it, but as I don't, where is the money going to be best spent ?

So looking forward, Rich, to your further comments.

Thanks

Peter
Posted on: 20 January 2004 by Greg Beatty
"You managed to get your P500 alot faster than me. I will be interested to learn how you get on experimenting with voltage. I have mine set at 246 Volts at present as this seems to give the sound a special clarity at the start and ends of notes."

This reminds me of my friend of went nuts with fuel additives and horse-power-enhancing mods to his car.

Yep - it ran faster...right until it blew up.

Has Naim commented on the likely effects of running thier kit at substantially higher (is 246 "substantially higher" than 220?) voltages?

Tyrell: The light that burns twice as bright burns half as long. And you have burned so very very brightly, Roy.

- GregB

Insert Witty Signature Line Here
Posted on: 20 January 2004 by Rich Jerskey
the P500 cometh!/ The P500 (110 voltage)arrived today and of course I plugged everything in and patiently expected zero improvement because of the probable tedious burn in period. I was wrong. Right away my skeptical ear detected a marked improvement in overall quality (maybe my mains was pretty shaky and this tweaked the quality back to a healthy level, I don't know). With this as an indication, I am going to get a dedicated spur put in for my system. That should be yet another (and relatively cheap) step up the quality ladder. PS Audio recommends a separate spur for optimal results. Honestly though, it's a noticeable difference right off the bat without coloring the Naim attributes in any way, shape or form. I guess it may fluctuate and ultimately sound even better after a course of burning in. The preliminary results are definitely positive. I hope this doesn't sound like I'm gushing. I'm not, in fact I'm kind of subdued in general today. Just an update and as things change in any way substantially, there'll be others.

also, from what I've read on our Forum somewhere, NAIM personnel gave someone inquiring about this a thumbs up. All skeptics be advised, I'm from your camp.

Rich J

ps forgot to add that with a supercap2, 250, xps all plugged in regen outlets and the volume at 9 o'clock (fairly good volume) the power consumption is about 80 watts or 17% of total available. Not bad.
Posted on: 20 January 2004 by David Sutton
Thanks Rich,

From my experience, it just gets better!

But 80 Watts eh? My Armageddon, SupeCap and XPS never get above 47 Watts. I dont think the power amp outlet (for a NAP 250 in my case) is a part of the total 500 Watts peak that is available.

look forward to hearing some more news.

David
Posted on: 20 January 2004 by Rich Jerskey
David,

Those numbers are with the 250 in a regen outlet. Otherwise I'm around your level. When my second 250 comes back on line I'll have to put one or both of the power amps in the uo outlets. Either way the difference is the same (250 in either uo or regen outlet). I am impressed, it's like when I had a CDX and added the XPS to it. kinda like that kind of upgrade.

Rich

still not gushing...
Posted on: 20 January 2004 by David Sutton
Thanks Greg,

I will remember your comments when my system blows up!

David
Posted on: 20 January 2004 by Greg Beatty
"I will remember your comments when my system blows up!"

And we all hope it never does!!! Or wears prematurely.

- GregB

Insert Witty Signature Line Here
Posted on: 21 January 2004 by David Sutton
Rich,

I will try putting the Armageddon in the Ultimate Outlet socket and the 250 in the regen socket. Good idea.

David
Posted on: 21 January 2004 by Peter Stockwell
quote:
Originally posted by Greg Beatty:
Has Naim commented on the likely effects of running thier kit at substantially higher (is 246 "substantially higher" than 220?) voltages?




Greg,

UK/Eur Naim gear is spec'd at 230V, but the power suppliy requirements are 230V(-6%/+10%) so the actual range is 216v-253v.

So 246v is no problem.

Peter
Posted on: 22 January 2004 by David Sutton
Well, I plugged my 250 into a regen outlet and put the Armageddon in the filtered outlet. Not finished assessing it yet but the power consumption (surprise, surprise) has shot up. Typically at 9 o'clock, it is in the 180-210W range, and 285W at ten-thirty.
I am not surprised by the power consumption, but relieved that it is no where near the capacity of the P500.
I never listen to my system above ten thirty as it seems to send my family into very un friendly behaviour patterns.

David
Posted on: 22 January 2004 by Rich Jerskey
Hi David,

Yeah, good feedback there. Like I said with one 250 and supercap and xps in regen I have 80 to 90 W at 9:00. It'll be interesting to see how I manage with other 250 also in regen and a hi-cap in UO. Like you, I don't go past 10:00 or 10:30 unless i'm in a very rare mood and the house is empty except for me. I'm still experiencing great improvement with P500 and maybe noticing a bit more refinement. By the way, I can't really tell much sound difference from having the 250 in a UO vs. a regen, can you? Maybe volume has to be cranked a bit to tell. What I love about this set up is that it sounds dynamite down to 8:00 or even 7:30 in volume.

Rich J