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Headfirst Amps Live

Jason Tong
Marshall
Jose Mod
Guitar Amplifiers
Marshall JCM 800-2203
Filtering (mains, Screen, Preamp)
Tubes (EL34, ECC83, Mullard, JJ, PS Vane)
Laney AOR Pro Tube Series
JCM900 SLX
Marshall Amplification
1959 Marshall Plexi Super Lead
Marshall Amplifiers
Tube Amplifiers
JCM 800 Front End / Cold Clipper
Marshall Amps (JCM800, Non-Master, Etc.)
Cabinets (4x12, TV Cab, Head-Shell Mods)
SLO100
Dual Rectifier
Peavey 5150
Marshall JMP/800 Family
JMP Era Amplifiers

Jason Tong hosts Amp Chats Live on YouTube with guest amp designers, techs and music personalities for all things tube amps. Live Q&A on YouTube every week.

PublishesMonthlyEpisodes33Founded3 years ago
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Music InterviewsMusic

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Artwork for Headfirst Amps Live

Latest Episodes

Open hang with the panel. What's everyone been working on, what's coming , and your Question. Ask us anything!

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Do you know the difference? How different are they really? You need to dig deeper than what it says on the rear faceplate! All this PLUS YOUR QUESTIONS!!

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The amp that started it all…hard to believe we haven’t dedicated a show to it yet! From the 60s through to the current reissue amps, all the details and all the minutiae!

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The best ever? Join Dave, Dan, Shea and Jason for a deep dive into the full history of this legendary circuit. From JMP to 800, vertical to horizontal. What are the differences?? Come along and find out. PLUS your questions!!

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Recent Guests

Brent Pergason
Marshall amp designer/replicator; runs Purgisound
Gower/Headfirst Amps Live
Episode: The Amp Panel #14 - Marshall JCM900 SL-X
Dave Hopkins
amp modder and builder discussed in depth
Independent amp designer / modifier
Episode: The Amp Panel #12 - the Peavey VTM
Pete Thorne
Guitarist, session player, and amplifier enthusiast
Guest (referenced on stream)
Episode: The Amp Panel #10 - SLO vs Dual Rec vs 5150

Host

Jason Tong
Host of Amp Chats Live, Headfirst Amps Live

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The Amp Panel #7 - Friedman, Gower, Monomyth, Headfirst
Q: What is the impact of bypass caps on a V2A stage in different Marshall-era circuits?
The group explains that bypass caps can alter high-frequency content and overall feel, with opinions varying by era; in some setups, the cap adds upper-mid presence and bite, while in others it can make the amp sound dull if misapplied. The consensus is that context—circuit era, speaker load, and gain stage interaction—drives whether the bypass cap is beneficial or detrimental.
The Amp Panel #11 - The Definitive Guide to the Jose Mod
Q: How different are the Hosei Amp and the Custom 50 (Reza Amp) aside from being 150W?
The two share the concept of a Jose-inspired circuit but are voiced differently; the Reza amp centers on pre-tone stack master and clipping diodes, while the Hosea lineage focuses on a dual-gain-stage approach with distinct tone stacks, affecting how the diodes interact with the rest of the network.

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Frequently Asked Questions About Headfirst Amps Live

What is Headfirst Amps Live about and what kind of topics does it cover?

The episodes showcase a deep, hands-on focus on tube guitar amplifiers, with rich roundtable discussions that dissect historical models, current builds, and practical modding. Topics frequently orbit iconic Marshall-era circuits, early JMP/JCM designs, and the evolution of tone through component choices, wiring layouts, and power-supply quirks. Conversations blend teardown-style analysis with shop-floor anecdotes, touching on vintage tech, restoration work, and how modern reissues compare to classic rigs. A standout thread across episodes is the community-driven knowledge sharing—from troubleshooting and sourcing parts to NAMM experiences and the culture of amp building—making it valuable for technicians, builders, and serious players who w... more

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Which podcasts are similar to Headfirst Amps Live?

These podcasts share a similar audience with Headfirst Amps Live:

1. Tone-Talk.com
2. The Truth About Vintage Amps with Skip Simmons
3. Chasing Tone - Guitar Podcast About Gear, Effects, Amps and Tone
4. No Cover Charge Podcast
5. Dipped In Tone

How many episodes of Headfirst Amps Live are there?

Headfirst Amps Live launched 3 years ago and published 33 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Headfirst Amps Live?

Recent guests on Headfirst Amps Live include:

1. Brent Pergason
2. Dave Hopkins
3. Pete Thorne

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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