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Linear power supply recommendations

At 72W out and maybe 50% efficiency with high mains, you are at the upper limit of natural air flow heatsinking.
 
I found this R-core in similar price
www.ebay.co.uk

S120 60W+60W R-Core Ultra Low Noise Linear Power Supply 2 Way LPS/PSU | eBay

Low-noise, high-current, excellent line/load regulation, wide-bandwidth, and stability characteristics. The circuit uses all discrete components (no integrated circuits), and features high-current MOSFETs as the output "pass" devices.
www.ebay.co.uk

I'm totally ignorant, but from pictures looking solid 😄
 
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Zombie said:
The audiophilia nervosa placebo self-fulfilling prophecy crowd has zoomed in on the wonders of optical and LPS. Of course no A-B testing.
I used a Teradak for my SBT, no real difference to write home about. Save your money and buy more good music instead.
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Couldn't agree more - this is apparently all- about feeding a router, and a NAS - both of which are isolated from direct connection to an audio system by Wifi and or Ethernet - which is galvanically-isolated by design!

PS, if such a thing absolutely, must-be had: simply buy the kind of totally reliable, designed for rated use, adjustable linear ' linear 13.8v VDC' supply of the kind that 'Hams' use - a fraternity far-more worried about spurious noise, and way more knowledgeable - than audionuts - on how to control it/ Such as- oh this - picked out of nowhere with 30s of google - there are many, many , many equivalents out there:

www.radioworld.co.uk

Microset p107a 7 - 8 amp linear power supply

The Microset P107A 7 - 8 Amp Linear Power Supply, Reliable and strong stabilized power supply, analog technology, good performances and good price, for small and medium applications, hobby, ham radio CB, small service, schools, tattoo. Interference less, overload and spark lightning protection...
www.radioworld.co.uk www.radioworld.co.uk

8amp, adjustable linear supply rated for 70% duty cycle - i.e. 5.6A continuous. It'll give decades of tediously -stable service too - just no fancy name attached.

PS - while the router and NAS nameplate requirements add-up to 5A - I bet when running they actually draw 1/2 that , or even less. My pair running at about 12v/2.2A , measured...
 
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davidsrsb said:
SMPS are not automatically noisy - I have designed SMPS that pass the very strict MIL-STD tests. This has become another foo opportunity
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Can you supply such an SMPS - or share your design with me?

For cost reasons, I experimented with powering a couple of devices that I supply, with several different SMPSs:
* a 12v head amp
* and a 24v phono stage.

In both cases, I got a horrible noise through the spkrs. 😮

So I have to continue to use Sboosters or SLAs.
 
andyr said:
Can you supply such an SMPS - or share your design with me?

For cost reasons, I experimented with powering a couple of devices that I supply, with several different SMPSs:
* a 12v head amp
* and a 24v phono stage.

In both cases, I got a horrible noise through the spkrs. 😮

So I have to continue to use Sboosters or SLAs.
Click to expand...
The SOtM sPS-500 is a commercially available SMPS marketed for audio and is well-regarded. It's pretty expensive though (IMO).
 
I would second the Teradak recommendation - superior to the MCRU supplies in my experience/system, and well put together - some of the far eastern stuff available is bloody awful & occasionally dangerous.

Any benefits of better power supplies of whatever topology will obviously depend very much on application - certainly worth going to town for a DAC PS - rather less convinced when it comes to routers/NAS etc but I'll try anything once..
 
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