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New HDPLEX 300W LPS


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This 300W LPSU has a completely new design for the 19V and 12V high current rails.  Improvements to the 200W LPS include

 

1: 8pcs  ST Micro TiP35C for 19V Rail and 8pcs for 12V Rail.

This is a major step up from 3pcs for 19V and 12V rail on the 200W LPSU. (250% increase). Each TiP35C only need to take 20-30W load at peak unlike 70-80W in the 200W LPSU.

 

2: Side Aluminum Heatsink on the 300W LPSU is 50% bigger than the 200W LPSU and weight also increase from 7kg to 10kg for the whole unit. The new 300W LPSU side heatsink also features Fin in Fin design which greatly increase the heat dissipation area.

 

3: The diode bridge rectifier for 19V and 12V high current rail in the 200W LPSU has been replaced by Schottky Rectifier circuit. This is a major change and will eliminate the rectifier overheating/smoke issue from the 200W LPSU.

 

4: High precision over current and over temperature protection circuit is achieved by using TI LM2904 OP AMP and MCU control chip with customized software. This protection circuit is highly accurate, responsive, and reliable.

 

5: Super large 10000uf ELNA audio cap is used. One super cap for each rail. This design prevents potential phase distortion which could be the result from using multiple caps for a single rail. 

 

6: Two LT3045 based adjustable rail max current has been increased from 2A to 3A per rail by adding two additional LT3045 for each rail. This is a 50% increase. 12pcs LT3045 are used in 300W LPSU compare to 8pcs in the 200W LPSU.

 

7. Over temperature protection is added to the 300W LPSU. The cut-off temperature is set at 80C. Based on our test, 300W LPSU board temperature won't exceed 75C when 19V or 12V rails runs at their max allowed 13A peak for a consecutive week.

 

Further details at https://hdplex.com/hdplex-fanless-300w-linear-power-supply-for-pc-audio-and-ce-device.html

NUC7PJYH/AL --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs

 

i7-6700K/Windows 10 Version 2004/HDPLEX 300W/HDPLEX 400W DC-ATX --> EVGA Nu Audio Card --> Focal CMS50's 

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  • 1 month later...

Larry says ETA of the 300W LPS in the USA is now late May.  I don't have an update re availability in other regions.

NUC7PJYH/AL --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs

 

i7-6700K/Windows 10 Version 2004/HDPLEX 300W/HDPLEX 400W DC-ATX --> EVGA Nu Audio Card --> Focal CMS50's 

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  • 1 month later...

300W LPS is now in stock for Asia.  Preorder now for 6/30 in USA and 7/15 for EU.  It's been a long time coming.

NUC7PJYH/AL --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs

 

i7-6700K/Windows 10 Version 2004/HDPLEX 300W/HDPLEX 400W DC-ATX --> EVGA Nu Audio Card --> Focal CMS50's 

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  • 1 month later...

I have received mine. Have had a few cursory listening sessions but all I can say so far is it does what its supposed to do voltage wise.

Intel NUC w/ Roon Core -> Ethernet switch -> Etheregen/ LPS 1.2 (B-Side) w/ After Dark Queen Square OCXO-> Optical Cable -> Optical Rendu -> Ghent JSSG360 Silver Plated Star Quad USB -> Schitt Gungnir Multibit -> LTA Microzotl Preamplifier -> Melody 845M Monoblocks ->Spatial Audio M3Triode Master Speakers;  ---- LTA Microzotl Preamplifier ->DSpeaker 8044S-II -> 2x SVS SB4000 Subwoofers.  --- HDPlex 300w LPS powering Intel Nuc, OpticalRendu, DSpeaker 8033 and AfterDark OCXO . PSAudio P10 PowerPlant 

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  • 2 weeks later...

I have been using my 300 LPS for about a month powering my Roon Rock RS9  a very nice improvement over the stock power supply. Also powering my Regen. It is built like a tank and doesn't get warm. Highly recommended.

IMG_4523.jpg

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11 hours ago, Jukka said:

 

It was about 530€ when I bought mine. I think it varies depending on currency rates.

 

Thanks Jukka. I love to hear your impression on the HDPLEX 300W, and also which gear it is powering and which PSU you used before the HDPLEX 300W.

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6 hours ago, Summit said:

 

Thanks Jukka. I love to hear your impression on the HDPLEX 300W, and also which gear it is powering and which PSU you used before the HDPLEX 300W.

 

New HDPlex 300W replaced previous 200W version. It is powering Hugo 2, JCat Extreme USB card and  HDPlex 800W DC-ATX board.

 

I think this new 300W version is much better than previous one. It sounds more relaxed and dynamic at the same time. These are early impressions with limited burn in, I expect it will only improve with time.

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  • 3 months later...
On 8/9/2020 at 11:27 AM, Kens said:

I have been using my 300 LPS for about a month powering my Roon Rock RS9  a very nice improvement over the stock power supply. Also powering my Regen. It is built like a tank and doesn't get warm. Highly recommended.

IMG_4523.jpg

Where can you buy the RS9 Roon Rock Server?  Does anybody sell that piece besides USATube Audio?

Reviewer

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I dont know of anyone else selling the RS9. It is a great unit my only complaint was the cost of shipping, other than that i am completely satisfied. If you decide to go with the HD Plex buy it from HD Plex. 

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  • 6 months later...
17 minutes ago, Kens said:

No mine is dead silent.

I just had my younger girlfriend listen and she could hear a hum with her ear a couple inches away.

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