PSU's for an Acoustic Revive RR-888 (or RR-777or RR-77)?

I have been researching Linear PSUs for my DAC and can offer you some suggestions. First, check the specs of your unit; it's 12V, but you need to know it's amperage. You can use a power supply with slightly higher amps, because the RR-888 will only draw the amount it needs.
  Also, it's important that the unit has a high-quality transformer, and a regulator which can filter noise from returning back down the line to the mains.

The PSU's made in the US and UK are highly regarded.
As for buying from China, I have only found one brand that has been receiving high praise; Teradak, and reasonably priced.
http://www.teradak.com/products/?id=25
Their dealers sell on ebay. Again, you need to match the specs of your unit with the specific power supply.
http://www.ebay.com/itm/131112824783?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Teddy Pardo is a top rated PSU, but you pay for that quality.
http://www.teddypardo.com/powersupplies.html

I've heard great things about the Teddy Pardo PSUs, but I've also had very good luck with the KingRex supplies as well. Unfortunately, the price has risen with the MKII upgrade--which I don't think is significant enough, sonically, over the MKI on the AR devices to justify the upgrade, but that's just me.

Whatever PSU you choose, try experimenting with power cords on the supply. You might be surprised.

As a lower-cost (but still very effective) alternative, possibly contact Jennifer Crock at Jena Labs. She does a fairly inexpensive filtration tweak to the stock wall wart that, in my experience, is as effective as many linear supplies I've tried. I use that on my second Schumann device.

Lowrider57,
thanks for your suggestions but I have one question.  How do I find the specs on my RR-888?  I've looked but can't find any info on its specs.  The only specs I can find is on the walwart PSU that came with the unit.  Printed on the walwart PSU:
I/P:. AC 100-240V 50/60 Hz 0.3A
O/P: DC 12V 1A
I can't match the specs of my RR-888, with the specific PSU, as I don't know, and can't find these specs.
Can you, or anyone else help me out?

Lynette,
Yes, the KingRex PSU is now over $400.  If that's what I have to spend that's ok, but I'm trying to research (with the help of fellow A'gon members) if the less expensive PSU's, for the RR-888, would work just as well.
I will try some different PC's,, and thanks for the suggestion to check with Jena Labs to see if that is as effective as purchasing a different, "upgraded" PSU.

Can anyone else suggest a particular PSU that they have used with the Acoustic Revive RR-888 (or 777, or 77)?
Also, do you think this is really worth pursuing?  Will I really get an improvement over the stock PSU with the RR-888?
Thanks to all!👍