Here’s a smaller unit that does the same thing.
http://www.ebay.com/itm/Astron-RS-7A-Power-Supply-Amateur-Radio-/272254608547?hash=item3f63a3a4a3:g:YGIAAOSwoJZXRlxm
Linear Power Supply for a DAC
For my Empirical Audio Off-Ramp, I’m using an Astron SL-11A. Made in Irvine, CA. Works great! Far superior to a wall-wart. Some units come with an IEC inlet instead of a captured PC. You can dial in 12dvc precisely by taking off the cover and turning a screw (multi-meter required). Only downside is that you need to make your own pin connector/cable (Radio Shack parts) - very easy to do. Astron was the premier manufacturer of power supplies for CB radios. Easily found on Ebay. Here’s a smaller unit that does the same thing. http://www.ebay.com/itm/Astron-RS-7A-Power-Supply-Amateur-Radio-/272254608547?hash=item3f63a3a4a3:g:YGIAAOSwoJZXRlxm |
Thanks for the replies. steakster, not really interested in a DIY project. I've been reading the UK audio forums where there is a lot of talk about Chord DACs, and the Teddy Pardo and Paul Hynes are highly rated. Many people are using TeraDak (Chinese) and they get good reviews. But something I've noticed and don't understand is that DAC owners are using power supplies with specs that do not exactly match the Chord. i.e., they'll use a 12V 0.5A PS on a DAC which requires 2 amps. There is one PS being sold in the UK specifically for Chord and it is less expensive than the Teddy and highly rated. http://www.mains-cables-r-us.co.uk/power-supplies/514-chord-qutehd-linear-power-supply.html My gut tells me to go for the Teddy Pardo even though it's more expensive. The pros...he works with top audio manufacturer's and he makes a PS which matches the specs of my DAC. |
Go for the Teddy unit. It is amazing and well worth the extra. Much better than the el cheapo PSUs you can get from ebay. I certainly love mine. The above mentioned Uptone Audio JS-2 is another great PSU, with the added bonus of variable output voltages option, but is much more expensive than the Teddy unit, and probably more than you want to spend. |
Thanks everybody. @photonman, I see you did some research on power supplies as well, but the Uptone is beyond my budget. I've seen many good units from the UK; MCRU, Paul Hynes, Sbooster, but so far I like the Teddy. He goes into detail about his filtering technology, but doesn't mention the transformer. @elberoth2, @celtic66 ... do you know if the Teddy uses a toroidal transformer? Ever experience any hum? |
Paul is not reliable I lost my money 4500USD after 8 month he not delivered my order and not refund my money https://www.computeraudiophile.com/forums/topic/38279-paul-hynes-excuses-to-deliver-the-power-supply... |
I'm not sure how we can say no one has ever lost money with a guy, right after someone has said that they've lost money with a guy. I am grateful to anyone that lets us know that they've not had the best dealings with an individual, especially if it's ended in them losing money. I'm looking for a PSU for a preamp, and I'm very interested in people's experiences. |
LPS for digital has different requirements than for analog preamp etc.. The digital LPS should be very fast reacting to provide the current transients for digital. I recommend the Sbooster supplies. Analog supply should be quiet, can be slower responding but input noise rejection is important. Paul Hynes supplies do the best job of this. Paul has had some factory issues over time, but he has his own shop again. Steve N. Empirical Audio |
Paul is a one man show it is VERY common knowlege that his product takes awile poster running him down, do you still have your place in line, what exactly did you contract for ? if your gear is in work, why not just sell your supply to somebody else or dispute the charges... i have a Pardo, fine bit of gear, on 24/7 going on 5 years with zero issues.. go Pardo |
lowrider57 Great linear supply using "R" Core Transformer Panasonic caps ect, and not too expensive. https://www.ebay.com/itm/TeraDak-DC-30W-TOUCH-DC12V-1-8A-Hi-Fi-For-Audio-Linear-Power-Supply/1309128... Cheers George |
The Paul Hynes SR4 is a production model; see his recent email
comments to me: |
Linear Power Supplies - Some Other brands: KECES Audio: http://keces-audio-usa.com/products Accubasston Steady : https://forum.audiogon.com/discussions/looking-for-better-jitter-reduction-in-a-dac/post?postid=1464... These are available on several sites, |
To Audioengr - Steve Nugent, regarding your comment: "The digital LPS should be very fast reacting to provide the current transients for digital. I recommend the Sbooster supplies. Analog supply should be quiet, can be slower responding but input noise rejection is important. Paul Hynes supplies do the best job of this." What power supply specification or other property could one use to tell if one supply is faster than another. I am also looking for a very good linear power supply for my Acoustic Plan Digimaster DAC which uses 4 - EC86 tubes and has a 15V ? 2A DC input. Do power supplies have different "sound signatures" (if that's the right term). Acoustic Plan makes an optional linear power supply, the Powermaster, that will run two of their components but it costs $2000. |
Hi guys if you remember i told you paul is not trusted and he not refund my money after 6 month. now Paul have sent me an email and he told me he will refund my money this week.
Good news to me and other who would like to order Paul hynes PSU. i should say Paul is trusted and if you pay him he will refund your money .
Amir |
What power supply specification or other property could one use to tell if one supply is faster than another. I am also looking for a very good linear power supply for my Acoustic Plan Digimaster DAC which uses 4 - EC86 tubes and has a 15V ? 2A DC input. There is nothing in the specs on most power supplies that will tell you this unfortunately. You have to try them out and compare them. Do power supplies have different "sound signatures" (if that’s the right term)? They will cause different sound signatures in different components. Slow reacting supplies will reduce dynamics (slam factor). Supplies that do not have tight regulation will cause smearing and loss of focus. Supplies that do not have good AC line noise rejection will cause noise in the music. I have gotten positive feedback on the Sbooster supplies. I believe they are fast reacting. They are not earth-grounded, but this can be added by using the right cabling. Steve N. Empirical Audio |