Vintage Tones at Your Fingertips

Explore the “Gram Jazz” Line6 Helix preset, meticulously crafted to replicate the timeless Grammatico GSG100 amp. Unleash the magic of legendary Dumble Overdrive Specials from the late 70s and early 80s in your guitar playing.

Experience Vintage Vibes

Our “Gram Jazz” preset faithfully captures the unique tones of the Grammatico GSG100, perfect for guitarists seeking classic and versatile tones.

Complete Control

• Drive: Achieve Dumble overdrive effortlessly.
• Tone Stack (Bass, Mid, Treble): Fine-tune your sound.
• Presence: Adjust high frequencies.
• Ch Vol: Control output level without tone compromise.
• Master: Explore power amp distortion at your volume preference.
• Mid Switch: Toggle tonal character.
• Jazz/Rock: Switch between different tonal voicings.
• OD Switch: Activate tube overdrive.
• OD Drive & OD Level: Customize overdrive and output.
• Bright: Tailor brightness.
• FET Boost: Add solid-state boost and EQ tweak.
• PAB: Go all out between tube gain stages 1 and 2.
• Sag: Shape compression and sustain.
• Hum: Introduce preamp tube hum for added realism.
• Ripple: Add harmonic complexity with power amp ripple.
• Bias & Bias X: Customize tube bias for subtle tonal changes.

Why “Gram Jazz”?

Perfect for warm vintage tones reminiscent of classic guitar sounds. Designed for players who appreciate fine sound details.

Unleash Creativity

“Gram Jazz” lets you sculpt your unique sonic masterpiece. Experiment with settings and explore the nuances.

Unlock vintage Grammatico GSG100 magic with “Gram Jazz” Line6 Helix preset. Elevate your guitar playing and experience authentic warmth and character.

Add “Gram Jazz” to your Line6 Helix arsenal. Let your fingers dance on the fretboard, creating sonic landscapes for your audience to cherish.