[nyc_paramedic]

Paul,

I have a small, USB Linux music server running on a single board computer that needs a decent power supply. Someone on my thread (http://www.audiocircle.com/index.php?topic=62364.0) was really impressed with the sound of one of your supplies with the aforementioned computer. Also said that you can offer a special type of supply meant to feed computer electronics.

The server is PC Engines Alix headless board with a low power 500Mhz x86 Geode CPU. It draws around 3-4 watts (at 12volts) when playing FLAC files and feeding a USB DAC. Input is via a single coaxial power jack; center pin = positive, sleeve = ground, 2.1 mm diameter.


Link to PDF spec sheet:  http://www.pcengines.ch/pdf/alix2.pdf

They recommend 12-18 volts and 15 watts. But that takes into account Power-over-Ethernet and high power Wi-FI radios in the Mini-PCI slots --none of which is being used in the USB music server setting.

Can you recommend a configuration for one of your power supplies? Maybe 9-12volts at 1.5 amps?

Nick

[ted_b]

Paul,
That was me with your SR3-18.    As I said to you yesterday I loved that ps on everything, but it transformed my Alix Linux machine (like Nick  is asking about above).  The tour SR3-18 version might be overkill (i.e Nick doesn't need adjustable voltage, etc).

[Paul Hynes]

Hello Nick,

The power supply Ted has been testing is the SR3-18 with a modification to allow adjustment of the output voltage. The SR3-12 provides 12 volts at 3 amps continuous, 20 amps transient. This will work well with the Alix and provide plenty of reserve power for any transient energy requirements of the Alix digital circuitry.

I sell the SR3 for £270 and the DC3C high performance DC lead terminated with a Switchcraft 2.1mm DC connector costs £45. Insured carriage and packing for shipment to the USA is £30.

If you do not like the power supply you can return it within 56 days of delivery for a full refund including carriage costs both ways.

Ted,

I have noticed the same results using this SR3 power supply regulator topology with anything I have tried it with. This includes a wide variety of digital products (motherboard, digital interface, dac etc), analogue signal processing (MC head-amps, phono stages, line preamps and power amps including high voltage versions for valve equipment), record deck DC power supplies, acoustic instrument preamplifiers and mixing consoles etc.

Regards
Paul