rickca Posted March 25, 2020 Share Posted March 25, 2020 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the heat dissipation area. 3: The diode bridge rectifier for 19V and 12V high current rail in the 200W LPSU has been replaced by Schottky Rectifier circuit.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 Nikhil 1 Pareto Audio AMD 7700 Server --> 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 --> EVGA Nu Audio Card --> Focal CMS50's Link to comment
rickca Posted May 2, 2020 Author Share Posted May 2, 2020 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. Pareto Audio AMD 7700 Server --> 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 --> EVGA Nu Audio Card --> Focal CMS50's Link to comment
rickca Posted June 7, 2020 Author Share Posted June 7, 2020 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. Pareto Audio AMD 7700 Server --> 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 --> EVGA Nu Audio Card --> Focal CMS50's Link to comment
stinart Posted July 22, 2020 Share Posted July 22, 2020 So , has anyone received the new hdplex? Link to comment
sandston Posted July 23, 2020 Share Posted July 23, 2020 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. EtherRegen powered by Sonore UltraCap LPS1.2 -> Optical Cable ->OpticalRendu powered by SGC 50w LPS -> Ghent silver plated ->star quad USB (JSSG360)->Denafrips Hermes DDC -> i2S HDMI (Clocked by Terminator Dac via BNC)->Denafrips Terminator II Dac->Linear Tube Audio Preamplifier->Melody 845M Monoblocks -> Silversmith Fidelium Speaker Cables->Pure Audio Project Trio15 Coaxial Open Baffle Speakers->2X SVS 4000 Subwoofers->All connected to PSAudio P10 Power Plant Link to comment
AnAndGate Posted August 4, 2020 Share Posted August 4, 2020 Was thinking this could be a good option to support a few of my upstream devices. Any feedback from early adopters? Link to comment
Kens Posted August 9, 2020 Share Posted August 9, 2020 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. Link to comment
Summit Posted August 10, 2020 Share Posted August 10, 2020 It seems to be sold out and there is no price on their home page. Does anyone know what it costs in Europe? Link to comment
Jukka Posted August 12, 2020 Share Posted August 12, 2020 On 8/10/2020 at 7:28 PM, Summit said: It seems to be sold out and there is no price on their home page. Does anyone know what it costs in Europe? It was about 530€ when I bought mine. I think it varies depending on currency rates. Summit 1 Link to comment
Summit Posted August 13, 2020 Share Posted August 13, 2020 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. Link to comment
Jukka Posted August 13, 2020 Share Posted August 13, 2020 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. Summit 1 Link to comment
mikeg Posted December 4, 2020 Share Posted December 4, 2020 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. Where can you buy the RS9 Roon Rock Server? Does anybody sell that piece besides USATube Audio? Reviewer Link to comment
Kens Posted December 4, 2020 Share Posted December 4, 2020 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. Link to comment
Roasty Posted June 13, 2021 Share Posted June 13, 2021 I have the HDPlex 300w. Is it normal to have a very faint buzzing sound from the unit? 20210613_215715.mp4 Link to comment
agladstone Posted June 13, 2021 Share Posted June 13, 2021 I have no noise from the 3 I own Link to comment
Kens Posted June 13, 2021 Share Posted June 13, 2021 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. Link to comment
Popular Post austinpop Posted June 13, 2021 Popular Post Share Posted June 13, 2021 3 hours ago, Kens said: I just had my younger girlfriend listen and she could hear a hum with her ear a couple inches away. How about your older girlfriend? 😊 Just kidding. You set that up so invitingly! NanoSword, agladstone, Summit and 3 others 6 My Audio Setup Link to comment
Peti Posted February 17 Share Posted February 17 Not much discussion is going on around here. Been rocking my unit for about two years and enjoying it immensely. Hooked up my monitors and NUC to it. Crystal clear picture, just impressive. "high fidelity” -> being faithful, accuracy in details; “the degree to which an electronic device accurately reproduces sound” Link to comment
Vule Posted March 11 Share Posted March 11 Can someone tell me what is exactly a type of fuse inside 300W? Fast blow or Slow blow? Link to comment
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