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HDPLEX Linear Power Supply

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Just like many of you, I have also been looking at an affordable linear power supply that would meet my needs. I stumbled upon this newly available PSU from HDPLEX: HDPLEX Fanless Linear Power Supply for PC Audio and CE device

 

It can be used to power two devices simultaneously, my main audio player (19V) and NAS (12V), and is affordable as well. Because I live in Europe, I saw that they also send from Germany, which saves me on import duty and taxes. Combined with a favorable USD to EUR rate, I decided to order one. This week the PSU arrived and I put it to the test. I have listened to it for a couple of hours now, but the improvements where spotted easily. Because I already use a separate power supply on my USB-S/PDIF converter, I did not expect the effects to be big, but it turned out to be a very welcome addition to my setup. As noticed in other threads, I found that the linear PSU improved the sound on imaging, transients, detail and bass. Especially on live recordings, there is a huge improvement in detail and realism. Overall I am very pleased. If you live in Europe like me, this PSU might be a good option to consider.

 

 

IMG_0896.JPG

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Did you use the matching 250w dc-atx converter or is your motherboard direct dc input without an atx socket?

 

If anyone is thinking of getting the dc-atx converters it is being amended as certain boards won't power up and there is an amendment to the 5v sb. The amended ones will be shipping from Germany at the end of this month when I enquired with Larry of HDPlex.


 

 

 

 

 

 

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Thanks for your response. The mainboard I use is of Thin Mini-ITX format and has direct 19V DC input, so no need for a converter. The PSU is rated 100W, which is more than enough in my case.

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I have two of these. One powering my Streacom FC5 with an HDPlex 250w DC-ATX converter and another powering a small HDPlex H1S case with a regular Pico PS in it. Both cases use an ASROCK H87M-ITX.

 

It comes stock with one [email protected] output and one [email protected] output. They may make 5V an option in the next batch.

 

Very good build quality. HDPlex also has a very prompt response to email questions.

 

These power supplies made a big difference especially with my HS1 which was using a very noisy SMPS brick. Lots more detail and less fatigue due to a much lower noise floor.



"Don't Believe Everything You Think"

System

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I have two of these. One powering my Streacom FC5 with an HDPlex 250w DC-ATX converter and another powering a small HDPlex H1S case with a regular Pico PS in it. Both cases use an ASROCK H87M-ITX.

 

It comes stock with one [email protected] output and one [email protected] output. They may make 5V an option in the next batch.

 

Very good build quality. HDPlex also has a very prompt response to email questions.

 

These power supplies made a big difference especially with my HS1 which was using a very noisy SMPS brick. Lots more detail and less fatigue due to a much lower noise floor.

 

Anyone did any measurements on the DC-ATX 250W or on the ripple of the PSU? Thanks!


Synology DS214+ with MinimServer --> Ethernet --> Sonore mRendu --> Chord Hugo --> Chord interconnects --> Naim NAP 200--> Chord speaker cable --> Focal Aria 948

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Just curious, is there any advantage using this linear power supply to provide power to a switching power supply to feed your PC?

 

(Audio)

 

Yes,but just the 3.3v bus rail.The other voltage just

harlequinade

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May I ask what integrated amp that is?

One more picture of my current setup. The PSU is in the cabinet, next to the NAS. I normally have a panel in front of it to tidy up a bit.

 

[ATTACH=CONFIG]13689[/ATTACH]


Forrest:

Win10 i7 3770k HQPlayer>Win10 NAA

DSD512>Pavel's DSC2.6>Bent Audio TAP>

Parasound JC1>Quad ESL63/Tannoy PS350B subs<100Hz

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TY, I love the "aura" of that piece.

It's a Duson PA-100. Quite an old model, but the sound is still excellent. See the link below for some more info.

 

https://sites.google.com/site/dusonhighend/geintegreerde-versterkers/duson-pa-100


Forrest:

Win10 i7 3770k HQPlayer>Win10 NAA

DSD512>Pavel's DSC2.6>Bent Audio TAP>

Parasound JC1>Quad ESL63/Tannoy PS350B subs<100Hz

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Hi,

just a 3 questions to the owners of HDplex Linear PS,

- is there any hum or noise when you put you ears near the box ?

- is this Linear PS the REGULATED one ?

- How is this one in comparison to KECES DC-116 ?

Thank you in advance


CD40s (3DLab) - EDEL NMR (Engineered) -or- DAPHILE (Q1900itx (Asrock) + LPS 100W (HDPLEX) + tX-USBexp (SOtM) - HYDRA-Z (Audiobyte) + LPS-1 (UpTone) - BLACK DRAGON (Audiobyte) - 2 x Ncore NC400 (Hypex) - M4 (P. E. Léon) - Cables: (Mapleshade, Audioprana, Nordost, Referenz1017, Pangea, Zavfino, Elecaudio, Tomanek) + FMC (TPlink) & NAS (OMV)

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Hi,

 

yes there was a hum noise for me too.

it seems that some units have a ground loop issue.

there is a tutorial in order to fixe it, but it did not work on my unit

unfortunately i returned it to hdplex for refund...

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Hi,

just a 3 questions to the owners of HDplex Linear PS,

- is there any hum or noise when you put you ears near the box ?

- is this Linear PS the REGULATED one ?

- How is this one in comparison to KECES DC-116 ?

Thank you in advance

 

Early Keces DC-116's apparently had noticeable hum, which was an issue in 50hz locations. This was dealt with by Keces and I got one of the redesigned units direct. Hum is detectible within 1ft., but not at all in the listening position 8 ft away. They supply them in a range of dual voltage options. I posted my experience with it here http://www.computeraudiophile.com/f8-general-forum/keces-dc-116-linear-power-supply-unit-quick-review-17623/index5.html post#111


LOUNGE: Lab12 Gordian Power Conditioner>Bluesound Node 2i (as streamer only)/Qobuz Studio>Bluejeans 1694A coaxial interconnect>iFi spdif iPurifier>Lab12 DAC1 SE>Townshend DCT 300 RCA Interconnects>Amplifier Lab12 Integre4 (Tung Sol KT150 output tubes) >Townshend Isolda EDCT Speaker Cables>Audium Comp 7 Passive Speakers.

LIVING ROOM:- iFi AC iPurifiers x2>Bluesound Node2i (as streamer only)/Qobuz Studio>Bluejeans Belden1694A coaxial interconnect>iFi Retro 50/LS3.5 Speakers.

 

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I recently purchased a Hdplex power supply to go with my Linear power supply, could not be happier.

 

TeraDak Custom Linear/Regulated PS

ps_zpsade57f67.jpg

 

Hdplex computer power supply

modularATXoutput_zpsd2fdfffd.jpg

 

ASUS Mini-ITX w/intel i7 + 16G Ram [fan replaced]

IMG_20140305_145046_zps267f1570.jpg

 

Audiogd Digital Interface USB/SPDIF w/separate power supply

DI-V3_zps80ea5e0f.jpg

 

2014-08-25215953_zpsa9b477c3.jpg

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I was not able to do a AB comparison of the HD Plex 250 W power supply and 12/19 volt LPS as there were other changes going on, but let me make the following points

 

- the build quality of both the LPS and DC to DC regulator distributor is absolutely top notch

 

- the LPS is almost totally silent. You have to press your ear hard against the case to hear any hum / buzz

 

- the LPS and DC/DC come with lots or cables which makes the install pretty much plug and play

 

- the speed of the customer service is real time, I was having trouble with another brand of DC/DC converter

 

I have the HD Plex combo powering the PC below and the sonic performance is incredible in a similar system as the one in my sig, but with KEF Blade speakers

Edited by EuroDriver

Sound Test, Monaco

Consultant to Sound Galleries Monaco, and Taiko Audio Holland

e-mail [email protected]

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This is the same LPS (100W version w/ 5V, 9V, 12V, 19V outputs) that Small Green Computer supplies for the CAPS servers.

 

I have one powering my Linux server (19V), Cubox NAA (5V) & Cisco switch (12V). All the necessary cables were included. Very well built.


Eric


Ubuntu Studio Linux music server (i5, 4 cores, 16GB RAM, Roon, HQP) > fiber > QNAP QSW-804-4C > fiber > opticalRendu (HQP NAA) > TP Buffalo IIIse Pro > Ncore NC400 mono blocks > Klipsch Forte III

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- the speed of the customer service is real time

 

+1

 

I have a HDPlex case and the 250W power supply and have had a few questions and even lost a few pieces. Larry has been great and has always replied ASAP, the way customer service should be.


equitech model q balanced power supply, red wine audio black lightning, sotm usb, berkeley alpha usb, meitner ma-1, bent audio tap-x balanced preamp, pass labs xa100.5, revel ultima studio 2,

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Hi all,

 

is there anyone that has tested a simple (or LiFE Po4) battery instead of linear power supply ? Any Difference ?

Thank you.


intel DG31PR - Windows 7 - Straightwire USB - Berkeley USB interface - Straightwire digital - Mytek 8x192 dac - ASI liveline interconnect - Bryston 4BSST2 - ASI liveline speaker cable - USHER Be 718 - Foobar 2000 WASAPI player

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Hi all,

just wanted to inform you that Larry is running a promotion this week for the LPSU which will be delivered end of March. More details can be found here.

Have a nice day, Tom

I have ordered one from the new batch and Larry said that it will mid March or so for delivery. My goal is to power a SSD and an USB card. I am not sure how to do that and waiting for the unit to come and see how do I make that happen.


Lenovo TS140(XEON E3-1225 v3 3.2GH) Win 2012 R2 4GB RAM RoonLab Audio Optimizer PPANG USB Card Larry's HDPlex-> CA DacMagic Plus -> AudioResearch DS225 Audioquest XLR -> Sonus Faber Olympica 2 Kimber Speaker Wire->(Main)RPi2 -> RoonBridge -> Onkyo TX-NR609 -> 7.1 In Wall Polk Audio SVS Sub (Home Theatre)

Allo Digione Signature -> HK Signature 2.0 -> Carver THX Amp -> NHT Zero + SVS SB-1000 (LivingRoom)

 

 

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+1

 

I have a HDPlex case and the 250W power supply and have had a few questions and even lost a few pieces. Larry has been great and has always replied ASAP, the way customer service should be.

 

+1

 

I try not to make "me too" posts :-)

 

....but Larry is the best! He usually responds to emails in minutes. When I had an issue with my server due to my own stupidity he sent me a spare PS just to help me troubleshoot. I own two of his LPS's and two internal converters.



"Don't Believe Everything You Think"

System

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