Amp Settings & Tone
The canonical amps — Plexi, JCM800, AC30, Deluxe Reverb, Twin, Bassman, 5150 — and how to dial each one for the voice it was built to make.
Clean & crunch
Fender Deluxe Reverb Settings
BlackfaceThe studio amp. Where the sweet spot lives, why the vibrato channel isn't actually tremolo, and the rig that Mayer built a career on.
Fender Deluxe Reverb vs. Tonemaster
ComparisonDoes the solid-state Tonemaster actually beat the tube original for studio work? We did the A/B.
Vox AC30 Settings Guide
British class AThe chime. Why Cut is backwards (up cuts treble), Top Boost vs Normal channel choice, and the Tom Petty rhythm sound.
Vox AC30 Cut Knob Explained
Deep diveA deeper dive on the single most misunderstood knob on the British clean amp.
Roland JC-120 Settings Guide
Solid stateThe transistor amp that actually worked. Chorus settings, why it's Andy Summers's only amp, and how to stop it from sounding sterile.
Marshall & high-gain
JCM800 Settings Guide
MarshallThe 80s metal and hard rock backbone. Why gain at 4 with master cranked sounds different from gain at 8 with master low.
Peavey 5150 Settings Guide
MetalThe metal amp. Pre gain vs post gain, why scooping mids in isolation kills you in a mix.
Peavey 5150 at Bedroom Volume
BedroomHow to get a 120W head to sound right at apartment-friendly volumes. Three use-case settings with knob positions.
Power Tube Saturation Explained
TheoryWhat class AB push-pull does to harmonics, where the 'warmth' of a cranked Plexi actually comes from, and why every guitar amp sounds different at volume.
Attenuators & integration
Reactive vs Resistive Attenuators
AttenuatorsWhy the attenuator you pick shapes the tone. How a real speaker cab's impedance curve differs from a dummy load, and what that does to the output transformer.
Tube Amp Attenuator Limits (Lower Wattage)
AttenuatorsThe hidden costs of running a low-wattage amp through an attenuator. At some point you're better off with the power soak removed.
4-Wire Method Explained
IntegrationHow to loop your modeler's effects into a real tube amp so your amp's preamp-AND-power-amp stay in the signal path.
Amp Gain, Volume, Master Controls
TheoryThe three volume knobs and what each one actually controls — Channel Volume, Master Volume, and Output Volume on modern amps.
Amp types & modeler picks
Complete Guide to Guitar Amp Types
PrimerTube vs solid state, class A vs class AB, single-ended vs push-pull. What the labels actually mean and how they shape tone.
Best Helix Amp Models (Blues)
ModelerSean Nakamura's top picks for blues tone on the Helix. Underrated amp models and why they work for blues specifically.
10 Helix Amp Models (Underrated)
ModelerHelix has 40+ amp models and most players use the same 5. Here are 10 you should open up today.
Adjacent pillars
Pedal settings guides
The drives, fuzzes, and modulations that sit in front of these amps. The amp is half the tone — the pedal stack is the other half.
Modeler mastery
Every amp on this page is in your Helix or Quad Cortex. The modeler pillar covers how to find them.
Signal chain fundamentals
Why order matters. Where the amp sits in the chain and what feeds it determines the rest.