Thank you Jason. A great explanation from Joe as to his builds, along with the data explaining why his ears hear the sound he is reaching for. These videos you provide from Joe in particular are a treasure. For myself, it was like hitting the jackpot in that, my questions in the WhatsApp feed a few days ago pertaining to this subject……. were answered in spades!
Hi he is right ! You can get a vintage amp and make miracles ! I did replace the capacitors of my amp and also I recommend to replace for the speakers 🔊 . Thanks Jason very informative video .
I just tested 4 different tube brand in my input stage of my rogue Cronus mag 3 dark. I tested 12Au7 Psvane, rays tube and telefunken, cryotone. The cryotone measures 1/2 the distortion of other tubes. It has an extreme low noise floor. This allow for more dynamics and takes away some of the negativity of tubes having too much noise. It allows for the tube amplifier to be more transparent. There’s a video of Steve from decware taking the measurements
Love to see Joe doing well, always enjoyed my conversations with him at Spatial. Hopefully he can swing by the southwest audio show, I’d love to catch up and have a listening session with the revelation 300B, aka Karna plus plus.
Other YT videos with Joe 1. Audiophile Junkie: 😲 You've NEVER Seen An Audiophile System Like This! ruclips.net/video/dXGzu3EXFtE/видео.html 2. Audiophile Junkie: 🤔 Insane Speaker Mod: Why and How? DIY Audiophile Taking It to the Extreme! ruclips.net/video/ZNFsCTEtroc/видео.html
Transcription -> Qwen2.5-max The video, titled "😲 This Audiophile Knows More than Most Dealers About Tube Amps," provides an in-depth exploration of tube amplifiers (also known as valve amplifiers) and the world of high-fidelity audio. The content delves into technical and conceptual discussions about the design, functionality, and optimization of these devices, as well as the preferences and experiences of audiophiles. Introduction to the Content The creator introduces the video as a follow-up to a previous one, focusing on DIY audio projects such as tube amplifiers and vinyl digitization. Due to time constraints, the video is presented as raw footage. The creator mentions having a backlog of content from events like CES and the Toronto Audio Fest, which will be shared later. Joe: An Expert in Tube Amplifiers Joe, a key figure in the video, shares his extensive knowledge of tube amplifiers and DIY audio systems. Despite differing preferences (Joe favors vinyl while the creator prefers solid-state audio), both share a passion for high-quality sound. Joe uses software like iZotope to digitize his vinyl records, enhancing sound quality by removing noise and improving dynamic range. The Importance of Continuous Learning The video emphasizes the importance of continuous learning within the audiophile community. Building custom audio equipment brings immense satisfaction, and Joe combines high-efficiency speakers with digital amplification for bass needs. Joe's deep understanding of tube amplifier design surpasses that of many dealers and manufacturers, showcasing his dedication to the craft. Joe’s Journey into Tube Amplification Joe discusses his transition from solid-state amplifiers to building over 30 custom tube amplifiers over several years. Introduction to High-End Audio The presentation begins with an overview of vacuum tube amplifiers and digitized analog audio systems. Fundamental concepts such as atomic theory, electromagnetism, types of output tubes, circuits, and schematics are covered. Interests and Experiences of Participants Several participants share their interests and experiences in audio technology: Frank is interested in solid-state systems but open to learning about tubes. Brian is new to tube technology and seeks an enjoyable listening experience. Joseph focuses on digital audio but is interested in broader discussions. Jerry uses specific brands for high-quality streaming. Jason ("Mr. DSP") has diverse interests, including transcription and various sound systems. Charles shares details about his solid-state system and impressive listening room. John Curl: A Seasoned Industry Expert John Curl, with over 60 years of experience, introduces himself as a veteran in the industry, starting with vacuum tube test gear production during World War II. Amplifiers and High-Efficiency Speakers The efficiency of speaker systems is crucial for achieving high-quality sound with lower power requirements, enabling the use of Class A amplification. The amplifiers discussed utilize high-quality components such as non-inductive resistors and specialized transformers, minimizing active components to enhance performance. Vacuum Tubes and Electromagnetism The RCA manual is introduced as a comprehensive resource on vacuum tubes, explaining their operation and applications. A practical demonstration using magnets illustrates the strength of electromagnetism, comparing it to the capabilities of electric motors in modern vehicles. Electromagnetic Induction and Diode Functionality A coil of wire can induce current and voltage when a magnet moves back and forth, demonstrating electromagnetic induction. Diodes consist of a cathode and an anode; heating the cathode allows electrons to flow toward the anode. Design and Modulation of Tube Amplifiers Tube amplifiers control electron flow using negative voltage on the grid, akin to shutting off water with a valve. Varying the grid's negativity allows for signal modulation, essential for effective audio amplification. Components and Construction High-quality components and push-pull configurations improve efficiency and reduce noise. Interstage transformers increase current flow, enhancing overall performance. Tube Testing and Evaluation Methods for testing tubes include transconductance tests and evaluations within circuits. Old stock tubes are often superior in manufacturing standards and sound quality compared to modern equivalents. Innovative Designs and Improvements Custom-built amplifiers incorporate high-quality components and innovative power supply designs. Eliminating coupling capacitors enhances sound fidelity, despite common beliefs about their necessity. System Configuration The audio system stores approximately 25,000 tracks on a 16-terabyte solid-state hard drive, transcribed from analog formats. Equipment includes a stripped-down Nook device, a DAC for playback, and platforms like Jay River for database management. Subwoofer and Speaker Design The subwoofer uses a Class D design to handle low frequencies efficiently, reducing back EMF issues for tighter bass response. Structural enhancements, such as bracing and damping materials, improve sound quality by minimizing vibrations. Final Considerations Proper power supply design and precise measurements are crucial for achieving optimal audio performance. This video offers a detailed and insightful look into the world of tube amplifiers and high-fidelity audio systems, blending technical knowledge with personal perspectives from experts and enthusiasts.
You might have missed an important distinction I made in the intro that would explain why. For tube amp makers designing an amp to run full range, it's important to have more power and headroom. However, Joe offloads all the high current demands from tube amps to solid state/class D such that his tube amps need less power and headroom. Thus, two people can be right... But it's understanding the subtle distinctions of purpose. The real way to look at it isn't KT120 versus KT88 or EL34...Joe prefers solid state to Kt120 (or any other tube) for high current bass demands. Joe's philosophy also requires an ability to "actively" crossover your speakers such that you can use different amps for different drivers. That in itself changes the equation and can provide more optimal results than one amp having to do everything.
amazing presentation. So privileged to have attended and met everyone.
Thank you Jason. A great explanation from Joe as to his builds, along with the data explaining why his ears hear the sound he is reaching for. These videos you provide from Joe in particular are a treasure. For myself, it was like hitting the jackpot in that, my questions in the WhatsApp feed a few days ago pertaining to this subject……. were answered in spades!
Thanks for uploading this.. It’s nice of Joe to share mods, resto-mods, and original designs from his friend, Pat. I agree with Joe on EL84’s too..
Thank you Jason! I really liked this video 🙏
Glad you enjoyed it!
Hi he is right ! You can get a vintage amp and make miracles ! I did replace the capacitors of my amp and also I recommend to replace for the speakers 🔊 . Thanks Jason very informative video .
I just tested 4 different tube brand in my input stage of my rogue Cronus mag 3 dark. I tested 12Au7 Psvane, rays tube and telefunken, cryotone. The cryotone measures 1/2 the distortion of other tubes. It has an extreme low noise floor. This allow for more dynamics and takes away some of the negativity of tubes having too much noise. It allows for the tube amplifier to be more transparent. There’s a video of Steve from decware taking the measurements
Love to see Joe doing well, always enjoyed my conversations with him at Spatial. Hopefully he can swing by the southwest audio show, I’d love to catch up and have a listening session with the revelation 300B, aka Karna plus plus.
Other YT videos with Joe
1. Audiophile Junkie: 😲 You've NEVER Seen An Audiophile System Like This!
ruclips.net/video/dXGzu3EXFtE/видео.html
2. Audiophile Junkie: 🤔 Insane Speaker Mod: Why and How? DIY Audiophile Taking It to the Extreme!
ruclips.net/video/ZNFsCTEtroc/видео.html
Question for Joe. In a new amplifier, wouldn't it be better to use solid-state rectification instead of valve rectification?
Transcription -> Qwen2.5-max
The video, titled "😲 This Audiophile Knows More than Most Dealers About Tube Amps," provides an in-depth exploration of tube amplifiers (also known as valve amplifiers) and the world of high-fidelity audio. The content delves into technical and conceptual discussions about the design, functionality, and optimization of these devices, as well as the preferences and experiences of audiophiles.
Introduction to the Content
The creator introduces the video as a follow-up to a previous one, focusing on DIY audio projects such as tube amplifiers and vinyl digitization. Due to time constraints, the video is presented as raw footage.
The creator mentions having a backlog of content from events like CES and the Toronto Audio Fest, which will be shared later.
Joe: An Expert in Tube Amplifiers
Joe, a key figure in the video, shares his extensive knowledge of tube amplifiers and DIY audio systems. Despite differing preferences (Joe favors vinyl while the creator prefers solid-state audio), both share a passion for high-quality sound.
Joe uses software like iZotope to digitize his vinyl records, enhancing sound quality by removing noise and improving dynamic range.
The Importance of Continuous Learning
The video emphasizes the importance of continuous learning within the audiophile community. Building custom audio equipment brings immense satisfaction, and Joe combines high-efficiency speakers with digital amplification for bass needs.
Joe's deep understanding of tube amplifier design surpasses that of many dealers and manufacturers, showcasing his dedication to the craft.
Joe’s Journey into Tube Amplification
Joe discusses his transition from solid-state amplifiers to building over 30 custom tube amplifiers over several years.
Introduction to High-End Audio
The presentation begins with an overview of vacuum tube amplifiers and digitized analog audio systems.
Fundamental concepts such as atomic theory, electromagnetism, types of output tubes, circuits, and schematics are covered.
Interests and Experiences of Participants
Several participants share their interests and experiences in audio technology:
Frank is interested in solid-state systems but open to learning about tubes.
Brian is new to tube technology and seeks an enjoyable listening experience.
Joseph focuses on digital audio but is interested in broader discussions.
Jerry uses specific brands for high-quality streaming.
Jason ("Mr. DSP") has diverse interests, including transcription and various sound systems.
Charles shares details about his solid-state system and impressive listening room.
John Curl: A Seasoned Industry Expert
John Curl, with over 60 years of experience, introduces himself as a veteran in the industry, starting with vacuum tube test gear production during World War II.
Amplifiers and High-Efficiency Speakers
The efficiency of speaker systems is crucial for achieving high-quality sound with lower power requirements, enabling the use of Class A amplification.
The amplifiers discussed utilize high-quality components such as non-inductive resistors and specialized transformers, minimizing active components to enhance performance.
Vacuum Tubes and Electromagnetism
The RCA manual is introduced as a comprehensive resource on vacuum tubes, explaining their operation and applications.
A practical demonstration using magnets illustrates the strength of electromagnetism, comparing it to the capabilities of electric motors in modern vehicles.
Electromagnetic Induction and Diode Functionality
A coil of wire can induce current and voltage when a magnet moves back and forth, demonstrating electromagnetic induction.
Diodes consist of a cathode and an anode; heating the cathode allows electrons to flow toward the anode.
Design and Modulation of Tube Amplifiers
Tube amplifiers control electron flow using negative voltage on the grid, akin to shutting off water with a valve.
Varying the grid's negativity allows for signal modulation, essential for effective audio amplification.
Components and Construction
High-quality components and push-pull configurations improve efficiency and reduce noise.
Interstage transformers increase current flow, enhancing overall performance.
Tube Testing and Evaluation
Methods for testing tubes include transconductance tests and evaluations within circuits.
Old stock tubes are often superior in manufacturing standards and sound quality compared to modern equivalents.
Innovative Designs and Improvements
Custom-built amplifiers incorporate high-quality components and innovative power supply designs.
Eliminating coupling capacitors enhances sound fidelity, despite common beliefs about their necessity.
System Configuration
The audio system stores approximately 25,000 tracks on a 16-terabyte solid-state hard drive, transcribed from analog formats.
Equipment includes a stripped-down Nook device, a DAC for playback, and platforms like Jay River for database management.
Subwoofer and Speaker Design
The subwoofer uses a Class D design to handle low frequencies efficiently, reducing back EMF issues for tighter bass response.
Structural enhancements, such as bracing and damping materials, improve sound quality by minimizing vibrations.
Final Considerations
Proper power supply design and precise measurements are crucial for achieving optimal audio performance.
This video offers a detailed and insightful look into the world of tube amplifiers and high-fidelity audio systems, blending technical knowledge with personal perspectives from experts and enthusiasts.
Nice summary using AI for those that can't watch it all 🤠
I have the Spatial Audio X5's, and wonder about his swapping out the midwoofers!
I would only do it if you also have the ability to adjust the crossover
Part II ? Demo? May you restate speakers? Was corrections, not clear on final speaker choices?
It would be best to review the prior videos from that visit where I shared music clips and gear walk through. I'll try to get you the links.
Try this playlist Most Esoteric Audiophile and System: ruclips.net/p/PLPt7qoWWa8yhTBdKLAsK8tgbvvWqE9gTg
Ken Stevens w CAT prefers
KT-120 over KT-88 or EL-34
Convergent Audio Tech
You might have missed an important distinction I made in the intro that would explain why.
For tube amp makers designing an amp to run full range, it's important to have more power and headroom. However, Joe offloads all the high current demands from tube amps to solid state/class D such that his tube amps need less power and headroom.
Thus, two people can be right... But it's understanding the subtle distinctions of purpose.
The real way to look at it isn't KT120 versus KT88 or EL34...Joe prefers solid state to Kt120 (or any other tube) for high current bass demands.
Joe's philosophy also requires an ability to "actively" crossover your speakers such that you can use different amps for different drivers.
That in itself changes the equation and can provide more optimal results than one amp having to do everything.