Headfirst Amps

17:29

My tube amp's Presence pot is "scratchy"...please help!!

Headfirst Amps

Shared 4 weeks ago

2K views

8:38

A JMP gets a rebuild - Vortex+ mod

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Shared 4 months ago

3.1K views

6:32

Headfirst Alta P1 - preorder announcement and demo!!

Headfirst Amps

Shared 5 months ago

6.9K views

19:56

Tube Amp Capacitors…what voltage ratings are required?

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Shared 5 months ago

2.2K views

18:45

Headfirst Alta P1 Tube Preamp - Pre-release Wait List is LIVE!!

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Shared 7 months ago

11K views

13:29

1968 Marshall 50W Bass - MALCOLM TONES!!

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Shared 7 months ago

10K views

18:19

Fractal VP4 + Headfirst Alta100 - A PERFECT PAIRING!! 4CM and Direct.

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Shared 7 months ago

3.8K views

29:50

The CLEANEST early 70s Marshall you will ever see!!

Headfirst Amps

Shared 7 months ago

5.8K views

5:36

Q2 2025 Update - USA Run, Product News + Tones!!!

Headfirst Amps

Shared 8 months ago

1.8K views

17:10

Modding the Marshall ST20H....how close to the SV20H is it?

Headfirst Amps

Shared 9 months ago

7K views

16:04

Tube Amp Relay & Heater DC Supplies - MADE EASY!!

Headfirst Amps

Shared 9 months ago

2.9K views

14:35

Club Secret Twenty5 - Features & Demo

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Shared 9 months ago

4.5K views

18:30

Relays in Tube Amps - MADE EASY!

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Shared 10 months ago

3.3K views

3:03

Headfirst Evil Joe and 4x12 Cab - iPhone clip

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Shared 11 months ago

2.5K views

15:33

3 Gain Stages Good, 4 Gain Stages Better!!

Headfirst Amps

Shared 11 months ago

12K views

8:34

Testing Tube Amps with the BOSS WAZA TAE Core - is it transparent? EVIL JOE TEST!!

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Shared 1 year ago

9.3K views

4:13

Club Secret 2025

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Shared 1 year ago

4.8K views

1:51

Into The Vortex - Headfirst modded 1959HW

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Shared 1 year ago

3.9K views

9:34

USA December 2024 VLOG #monomythamps #headfirstamps

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Shared 1 year ago

3K views

4:37

Airbourne Collection - Part 4 - 1977 JMP 2203 #airbourne

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Shared 1 year ago

2.3K views

1:33

Winter in Bloomington

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Shared 1 year ago

1.4K views

16:51

Converting a Marshall JMP 1987 to a 2204 - A PRACTICAL GUIDE!

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Shared 1 year ago

3.8K views

7:01

Marshall 1959SLP reissue - Vortex

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Shared 1 year ago

5.2K views

13:57

Headfirst Evil Joe - DEMO and OVERVIEW!

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Shared 1 year ago

6.2K views

10:29

Airbourne Collection - Part 3 - 1979 Marshall JMP 50W #airbourne

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Shared 1 year ago

3.2K views

10:45

Marshall Origin DROP-IN replacement mod PCBs - JCM800 hot rod!!

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Shared 1 year ago

16K views

10:43

Airbourne Collection - Part 2 - 1982 Marshall 2203 JCM800 #airbourne

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Shared 1 year ago

3.5K views

11:03

Airbourne Collection - Part 1 - 1974 Marshall Super Lead #airbourne

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Shared 1 year ago

8.7K views

2:03

Shea plays the Evil Joe #monomythamps

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Shared 1 year ago

4.7K views

12:53

USA May 2024 Vlog #monomythamps #ksramps #headfirstamps #slipknot

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Shared 1 year ago

1.6K views

2:57

Headfirst Evil Joe - the Evil Joe Barresi amplifier. NEW RELEASE!!

Headfirst Amps

Shared 1 year ago

6.6K views

12:53

The CRAZIEST Marshall mod you've ever seen!! Part II

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Shared 1 year ago

7.1K views

17:03

The CRAZIEST Marshall mod you've ever seen!!

Headfirst Amps

Shared 1 year ago

16K views

17:45

Shea & Jason high gain mod Marc Huzansky's Marshall SV20H @Monomythamplification @tone-talk #VHMod

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Shared 1 year ago

14K views

20:35

Leon Todd’s 100w Marshall 2959!!

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Shared 1 year ago

9.3K views

1:25

Marshall SV20H OG José with added Clean channel!!

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Shared 1 year ago

4.9K views

17:32

Improve your Marshall Vintage Modern!!

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Shared 1 year ago

16K views

22:09

100W Super Lead with Reverb??!! The Marshall 2959

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Shared 1 year ago

4.8K views

2:17

Vortex 4 Stage Mod

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Shared 1 year ago

3.4K views

0:50

Club Secret Twenty3. iPhone, Kramer 1984 and Greenbacks.

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Shared 1 year ago

2.7K views

9:10

Plexi Mod the Origin 50. 50W vs. 20W differences!!

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Shared 2 years ago

9.4K views

9:52

Do the Marshall Vietnamese transformers sound any good?? MAV vs Mercury TONE TEST!!

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Shared 2 years ago

15K views

15:39

Hot Rod your Marshall 1959HW - OG José HOW TO!!

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Shared 2 years ago

35K views

7:13

Recreating Malcolm Young's 1971 Marshall Super Bass - PART 2

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Shared 2 years ago

7K views

5:47

Recreating Malcolm Young's 1971 Marshall Super Bass - PART 1

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Shared 2 years ago

10K views

3:04

Headfirst 2203 Stealth Mod

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Shared 2 years ago

3.8K views

33:15

Turn your Marshall Origin into a Proper Plexi - REVISITED!!

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Shared 2 years ago

25K views

11:02

NOS Mustards for this ‘78 JMP | A great amp made even better? Part 2

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Shared 2 years ago

3.1K views

14:22

NOS Mustards for this ‘78 JMP | A great amp made even better? Part 1

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Shared 2 years ago

3.7K views

13:48

JTM50 to 2204 style conversion - HOW TO with IMPROVEMENTS!!

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Shared 2 years ago

4.5K views

6:36

Suhr SL67 - The best 'Plexi' available in 2023

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Shared 2 years ago

25K views

6:40

What Marshall is not telling you! I can’t believe they did this!!

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Shared 2 years ago

135K views

2:05

Marshall SV20H with OG José mod

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Shared 2 years ago

8.7K views

9:45

What's wrong with this 1979 JMP?....PART 2

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Shared 2 years ago

2.3K views

10:30

What's wrong with this 1979 JMP? PART 1

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Shared 2 years ago

3.5K views

13:25

1974 50w JMP 1987 - so cool, it's cold!!

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Shared 2 years ago

4.9K views

9:04

A José Mod - MADE BETTER Part 2

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Shared 2 years ago

4.9K views

10:57

A José Mod - MADE BETTER! Part 1

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Shared 2 years ago

10K views

2:52

John Sykes tone!! ISOLATED GUITARS!! | Alta100 & Simon Hosford

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Shared 2 years ago

2.7K views

5:29

Jim Root’s Custom Alta50!! #jimroot #slipknot

Headfirst Amps

Shared 2 years ago

6.2K views