As a former electronic technician and lover of great music, I greatly enjoyed and appreciated this analytical comparison of 300B tubes! I know the Chinese tubes are criticized and was very curious how well they would REALLY compare to a popular “audiophile” brand. Thank you!
To my ear the Shuguang sounded much mellower, more depth, and had greater grip on the classical music. But I judged solely on the sound. It seemed to have more presence. Thank you for your interesting video.
Thank you so much for your testing. I will keep my shuguang kt88 instead of upgrading to gold lion since it is pretty much similar. Shuguang has been performed very well in the past three years. Greatly appreciated.
I agree. Filamentary triodes and the amplifiers that use them, have more resolving power than any of today's signal sources. If there's any difference, digital audio isn't refined enough, for you to be able to tell a difference.(quite frankly, neither is my hearing)
Think about Shuguang 2A3C it is 2.5V version of 300B. The adventage, the filament is center tapped, I replaced my 300B with 2A3C with 2×0.5 ohm resistors in series on the filaments.
1. Great video and presentation Young Ahn. 2. With computer speakers, etc both the Shuguang and the Gold Lion 300B's sound very similar to my ears. Certainly the Gold Lion tubes appear to be constructed better than the Shuguang so my main thought, when it comes to purchasing either of them, would be which set are going to give the longest and most reliable service. My guess the Gold Lions would be more durable but that would not be as easy to test. Only time would tell. Thanks for the excellent upload. Puget Sound area of Washington.
Shuguang isn't stupid. They provide a good product for a decent price. They know lots of audiophiles want to enjoy tubes like the 300b but would never buy such an amp if they had to pay $300 per tube. I heard a lot of boutique tubes are made by Shuguang but branded under other names. I understand that they are the tubes that simply test better than their common tubes. I don't know if that's really true or not.
좋은영상 잘 보고 있습니다. 40여년전 관심이 많았던 진공관앰프이지만 그 시대에는 접할수 있는 정보가 한계가 있다보니 책으로만(전자관련 월간지)접할수 밖에 없었지요...좋은 정보와 영상에 감사드립니다. 맨 처음 ID가 한국분이라고 생각하면서 구독했는데 본 영상에 e-bay Log on을 보니까 캐나다에 거주하시는 한국분이라고 확신하고 이렇게 한글로 남김니다
안녕하십니까, 세영입니다. 저의 채널 애청, 감사드립니다. 예, 저는 캐나다에 온지 19년 됩니다. 옛날 중고등학교때 공부안하고 땜질하던 일을 지금 다시 시작했습니다. 시정해야 할 부분이 있으면 언제든 조언 부탁드립니다. 그리고 영어가 시원치 않음을 양해하여 주시기 바라고요. 그럼 좋은 하루되세요.
@@YoungAhn 역시 예상이 맞았군요...저보다 2년 연배이시고요..."Fluxion Audio"를 검색해봤는데 유명인사이시네요. 한국어로 올린 영상도 있군요. 저도 어릴때 학생과학등 전자관련 월간잡지를 탐독하면서 라디오조립이나 아마추어무선(HAM)등에도 관심이 많았던 시절이 있었습니다. 광운전자공과대학(?)도 친숙한 이름이고요...요즈음엔 광운대로 바뀐지 오래되었지만 그때는 단과대이었죠? 70~80년대 한국의 전자산업을 이끌었던 분들이 전부 이 대학출신이었던걸로 알고 있습니다. 감사합니다
Hi hi, thank you for your comment on my video. Somebody told me that LG electronics is a partner with Shuguang. LG was one of a huge picture tube manufacturers long time ago. Have a great day. Young
Useful information about the electrical properties and testing of the tubes. However, that is ALL this test is - a test of specifications. It says NOTHING about how they sound, and all the people below arguing about the sound are wasting their time!! A TH-cam video proves nothing about sound quality.You'd have to be IN THE ROOM with the system to make sound judgments. Duh!
I’m late to this video, but found it to be very useful. I’m curious if you had any negative experience with buying Chinese made tubes. I’m never sure if these are legitimate tube or fakes. Example would be Linlai tube 300d are these the same as Linlai Global 300b or Shuguang black treasure 300b that cost 40% less. The price and service is great but are these tubes legitimate?? Brian
My problem is, I can't tell any difference whatsoever. The digital sound on TH-cam doesn't have anywhere near the resolving power of a single-ended triode amplifier. There could be differences, too subtle to be resolved by this digital media. I am using studio quality headphones, which also is limited by the resolution of digital audio. I tested a 300B triode, with a 1kΩ pullup resistor on the anode, and it resolved a square wave at 2 megahertz. 2 orders of magnitude above the human hearing range. these tubes, and the amplifiers that use them, are as good as any signal source you can possibly have, thus, I doubt you will ever hear a difference in a "blindfold test".
To be honest this review is great and he shows much evidence and detail about each tube/valve. However playing the music to listen on a computer is just totally unrealistic and I never listen in this way. The only way to check differences is on a HiFi system in the flesh in the correct listening condition,. When I click on so called reviews that are just playing music I click off them as it is just ridiculous. The point he makes here is just the conditions are shown in which he listens his music.
I had kt88 gold lion reissue , Black diamond telenfunken both waste of money. Shu guang black treasure and Psvane KTii are so much better. I had EAT too ,,, but the price is too expensive and it lasted only about 3 years .
Great video 👍👍👍 Is the amplifier using solid state rectifier for 300B? What's the best bias current for 300B in the system? I use Guiguang (桂光) 300B find its also good for the price and performance. Thx!
dear mr. Leo Lai, thanks for leaving a comment on my video. Yes, I use 4 Si rectifiers(UF4007). and Ip is 70~75mA(self bias). Have a great weekend. Young
안녕하세요, 선생님. 아주 좋은 비교 시험 감사드립니다. PSvane 300B 저가형을 구입해 커브 트레이서로 측정한후 싱글 앰프를 몇년전 설계했으나 아직 앰프를 완성하지는 못했습니다. Psvane 300B와 슈광 300B의 비교에서 선생님은 어떻게 차이를 느끼시는지요? 감사드립니다.
Whenever a amp comes in for service here and has china fire bottles inside they get tossed first and not tested, sorry have encountered enough failures over the years no chances are taken anymore.
good evening dear JW. Thanks your comment on my video. I usually buy Chinese tubes on ebay. Most of my customers who purchase my amplifiers have never complained about tubes such as 300B, EL34, KT88. I set Pd for my product less than 80% : SE, less than 60% ; PP. These design value promises long tube life and safe operation. Thank you very much. Young
As a former electronic technician and lover of great music, I greatly enjoyed and appreciated this analytical comparison of 300B tubes! I know the Chinese tubes are criticized and was very curious how well they would REALLY compare to a popular “audiophile” brand. Thank you!
Thank you for your great comment. Have a great day. Young
To my ear the Shuguang sounded much mellower, more depth, and had greater grip on the classical music. But I judged solely on the sound. It seemed to have more presence. Thank you for your interesting video.
😃 thank you for your comment on my video.
Thank you so much for your testing. I will keep my shuguang kt88 instead of upgrading to gold lion since it is pretty much similar. Shuguang has been performed very well in the past three years. Greatly appreciated.
Thanks for your great comment and experience regarding Shuguang tubes. Have a great day mr. Zhang. Young
In my opinion the gold lions are worth the difference of price. Thank you very much for clear explanation.
Thank you sir
Late to this one but I prefer the Gold Lion, thanks again Mr Young
Shuguang, no doubt !!! Less price, same tube !!!
I agree. Filamentary triodes and the amplifiers that use them, have more resolving power than any of today's signal sources. If there's any difference, digital audio isn't refined enough, for you to be able to tell a difference.(quite frankly, neither is my hearing)
Real test for a tubes. great work and a good taste for music!
Thank you
Thank you for the analysis. Certainly is food for thought
👍thank you
Think about Shuguang 2A3C it is 2.5V version of 300B. The adventage, the filament is center tapped, I replaced my 300B with 2A3C with 2×0.5 ohm resistors in series on the filaments.
Hi, thanks for your great comment. Good day
1. Great video and presentation Young Ahn. 2. With computer speakers, etc both the Shuguang and the Gold Lion 300B's sound very similar to my ears. Certainly the Gold Lion tubes appear to be constructed better than the Shuguang so my main thought, when it comes to purchasing either of them, would be which set are going to give the longest and most reliable service. My guess the Gold Lions would be more durable but that would not be as easy to test. Only time would tell. Thanks for the excellent upload. Puget Sound area of Washington.
Good morning sir, thank you for your great comment. Have a great day. Young
Great review. Gold Lion is to my taste.
Shuguang isn't stupid. They provide a good product for a decent price. They know lots of audiophiles want to enjoy tubes like the 300b but would never buy such an amp if they had to pay $300 per tube.
I heard a lot of boutique tubes are made by Shuguang but branded under other names. I understand that they are the tubes that simply test better than their common tubes. I don't know if that's really true or not.
Thanks again sir
最近正在考虑买电子管，这个视频做的很好
Thanks for your great comment. good day sir
Love your collections! :)
Glad you like them!
Shuguang is best. Obviosily
좋은영상 잘 보고 있습니다.
40여년전 관심이 많았던 진공관앰프이지만 그 시대에는 접할수 있는 정보가 한계가 있다보니 책으로만(전자관련 월간지)접할수 밖에 없었지요...좋은 정보와 영상에 감사드립니다. 맨 처음 ID가 한국분이라고 생각하면서 구독했는데 본 영상에 e-bay Log on을 보니까 캐나다에 거주하시는 한국분이라고 확신하고 이렇게 한글로 남김니다
안녕하십니까, 세영입니다. 저의 채널 애청, 감사드립니다. 예, 저는 캐나다에 온지 19년 됩니다. 옛날 중고등학교때 공부안하고 땜질하던 일을 지금 다시 시작했습니다. 시정해야 할 부분이 있으면 언제든 조언 부탁드립니다. 그리고 영어가 시원치 않음을 양해하여 주시기 바라고요. 그럼 좋은 하루되세요.
@@YoungAhn 역시 예상이 맞았군요...저보다 2년 연배이시고요..."Fluxion Audio"를 검색해봤는데 유명인사이시네요. 한국어로 올린 영상도 있군요. 저도 어릴때 학생과학등 전자관련 월간잡지를 탐독하면서 라디오조립이나 아마추어무선(HAM)등에도 관심이 많았던 시절이 있었습니다. 광운전자공과대학(?)도 친숙한 이름이고요...요즈음엔 광운대로 바뀐지 오래되었지만 그때는 단과대이었죠? 70~80년대 한국의 전자산업을 이끌었던 분들이 전부 이 대학출신이었던걸로 알고 있습니다. 감사합니다
😃 기억납니다, 학생과학. 서울 변두리대학이라고 불렷습니다. 군대갓다오니까 교명이 딜라졋엇습니다. 엤날이네요. 그럼 종종 뵙겟습니다. 세영 😁
Great video! Will be interesting to know comparison with KR Audio, Elrog, Audio Note, Blue Moon, Melody
...don’t forget Sophia Electric tubes as well
Very informative! Greetings from Brazil!
Have a great day sir. Thanks
슈광과골드라이언
슈광은가격이 어느정도하는지
또 골드라이언은
가격이얼마인지 몹시궁금해요 알려주세요
안녕하세요, 시청 감사드립니다. 주로 이배이에서 가격비교하기가 쉽습니다. 좋은하루되세요
Should make too test whith,square wave... 👋
Great comparison, I will be trying some quality Chinese valves next
Hi hi, thank you for your comment on my video. Somebody told me that LG electronics is a partner with Shuguang. LG was one of a huge picture tube manufacturers long time ago. Have a great day. Young
Gold Lion got more soft sweet tone!
Thanks for your comment. Young
와 이렇게 좋은영상을 한국인 전문가분에게 들을수잇다니 너무 좋습니다..! 큰 도움이되엇습니다 감사합니다! 구독눌르고갑니다~
안녕하세요. 저의 채널 방문 감사드립니다. 노력하겠습니다. 세영
Hi there can you tell me which Klipsch speakers were in the 6:40 mark
Model RF800, 98dB. Thank you
Based on your findings I would buy the cheaper of the two.
absolutely A+++++ choice, Thank you sir
Which Shuguang EL34 tube do you recommend for Reisong A10 tube amp. Thank you.
Hi sir. Any Shuguang is OK. Thanks
Very useful test ! thanks......keep like this.....cheers from Italy....
Glad you liked it!
That was useful.Thank you.
Gold Lion
Useful information about the electrical properties and testing of the tubes. However, that is ALL this test is - a test of specifications. It says NOTHING about how they sound, and all the people below arguing about the sound are wasting their time!! A TH-cam video proves nothing about sound quality.You'd have to be IN THE ROOM with the system to make sound judgments. Duh!
th-cam.com/video/5XDiEo6PuwQ/w-d-xo.html
ShuGuang has an annoying 'live' edge, GL went 'high end' slow bandwidth transistor.. allanS750
Great video with actual scientific comparision.
Glad you liked it!
I used to have those Klipsch RF 62 too. You cannot put 'em this close to the rear wall. At least 30" away.
I’m late to this video, but found it to be very useful.
I’m curious if you had any negative experience with buying Chinese made tubes.
I’m never sure if these are legitimate tube or fakes. Example would be Linlai tube 300d are these the same as Linlai Global 300b or Shuguang black treasure 300b that cost 40% less.
The price and service is great but are these tubes legitimate??
Brian
Thanks. th-cam.com/video/5XDiEo6PuwQ/w-d-xo.html
I get the data part, but the listening tests have to be done in person. Otherwise, all we get is TH-cam compression, your mic and our speakers.
Thanks for your comment
안녕하세요?
영상 흥미롭게 잘 보았습니다.
300B guiguang을 가지고 있는데 소리가 어떨지 궁금합니다.
차이가 있는지요?
심리적인 측면에서는 있을수있겠지만 전혀 없습니다. 수고하세요
Merci Beaucoup. Thanks a lot. Have a good day.
Same to you!
Thank you, more like this please
I will try. Thank you sir
Shuguang sound 10 times better
Where do I order? Do you have kits?!
Thank you! ❤ 🙌
No kits.tnx
@@YoungAhn make me a kit or plans or something. Please
excellent comparison video..thank you.
Glad you liked it!
Extraordinario muchas gracias
My problem is, I can't tell any difference whatsoever. The digital sound on TH-cam doesn't have anywhere near the resolving power of a single-ended triode amplifier. There could be differences, too subtle to be resolved by this digital media. I am using studio quality headphones, which also is limited by the resolution of digital audio. I tested a 300B triode, with a 1kΩ pullup resistor on the anode, and it resolved a square wave at 2 megahertz. 2 orders of magnitude above the human hearing range. these tubes, and the amplifiers that use them, are as good as any signal source you can possibly have, thus, I doubt you will ever hear a difference in a "blindfold test".
To be honest this review is great and he shows much evidence and detail about each tube/valve. However playing the music to listen on a computer is just totally unrealistic and I never listen in this way. The only way to check differences is on a HiFi system in the flesh in the correct listening condition,. When I click on so called reviews that are just playing music I click off them as it is just ridiculous. The point he makes here is just the conditions are shown in which he listens his music.
awesome video! Thank you very much
Glad you liked it!
On the hearing test I felt the Gold Lion with more attack, detail and are more Dynamic.
Thanks for your comment. How about blind test next time? Let me know. Young
@@YoungAhn Nice, good idea!
I had kt88 gold lion reissue , Black diamond telenfunken both waste of money. Shu guang black treasure and Psvane KTii are so much better. I had EAT too ,,, but the price is too expensive and it lasted only about 3 years .
Hi, thanks for posting a precious comment on my video.. I appreciate your experience. SometimesI get similar comments like yours. Thanks again sir. 😃
Great video!
Thank you sir
Floor noise of Gold Lion is greater.
Add a hum balancer or DC filament supply, it's same. Good day sir
Great video 👍👍👍
Is the amplifier using solid state rectifier for 300B?
What's the best bias current for 300B in the system?
I use Guiguang (桂光) 300B find its also good for the price and performance.
Thx!
dear mr. Leo Lai, thanks for leaving a comment on my video. Yes, I use 4 Si rectifiers(UF4007). and Ip is 70~75mA(self bias). Have a great weekend. Young
I like to bias to 40~45% of the core saturation current of the output transformer.(best bandwidth, best output power)
안녕하세요, 선생님.
아주 좋은 비교 시험 감사드립니다.
PSvane 300B 저가형을 구입해 커브 트레이서로 측정한후 싱글 앰프를 몇년전 설계했으나 아직 앰프를 완성하지는 못했습니다.
Psvane 300B와 슈광 300B의 비교에서 선생님은 어떻게 차이를 느끼시는지요?
감사드립니다.
안녕하세요. 저는 전기적 특성으로 소리의 좋고 나쁨을 판단하기 때문에 뭐라고 말씀드리기가 어렵습니다. 거의 대부분 잘 동작할걸로 생각합니다. 감사합니다.
@@YoungAhn 답글 감사드립니다. 선생님 영상을 통해 많이 배우고 있습니다. 정말 고맙습니다.
항상 저의 채널 시청 감사드립니다. 😀
Whenever a amp comes in for service here and has china fire bottles inside they get tossed first and not tested, sorry have encountered enough failures over the years no chances are taken anymore.
good evening dear JW. Thanks your comment on my video. I usually buy Chinese tubes on ebay. Most of my customers who purchase my amplifiers have never complained about tubes such as 300B, EL34, KT88. I set Pd for my product less than 80% : SE, less than 60% ; PP. These design value promises long tube life and safe operation. Thank you very much. Young
Its a total rip almost identical in sound.
I agree with you. Thank you
what about sovtek ones
Good morning , I have been using EL tubes(cheapest) for many years to test my products. Maybe near to 700 hours. Still strong. Very nice as Shuguang.
@@YoungAhn Hi...What is EL tubes..? BR. Henrik
electro harmonics
@@YoungAhn Ohh... i see..I like EH tubes too :)
Thank you for watching my videos.
All good..
Thank you very much dear Mr.K
I did not ear much difference betwen both, in sound .I think would buy cheapest one (Shuguang)
That's my conclusion as well.
All about how much you gonna pay for .
th-cam.com/video/Ry_PBYJQCvo/w-d-xo.html
파이팅
좋은아침입니다. 감사합니다, 영어가 시원치 않아서 망설이다가 처음 카메라 앞에 서봤습니다. 좋은 주말 보내세요. 세영