Boss GP-20 Amp Factory

^# 63

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$118.32 Price Tier: Budget

5.0 (2)

This product is Vintage or Discontinued

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Page last updated Jul 03, 2026

Pricing and availability

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5.0 (6)

$118.32 5 available Used

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Average Price: $118

Budget/Beginner

$200

$501+

Price Tier

In the Amp & Cabinet Simulators category, Boss GP-20 Amp Factory is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

Budget

Standard

High-end

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Description

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Unleash the full spectrum of sound with the Boss GP-20 Amp Factory, your all-in-one solution to achieving the perfect tone. This compact marvel doesn't just replicate the sound of guitar amps; it revitalizes your music with a range of tonal possibilities that span from the vintage vibe of classic tweed to the roaring aggression of British muscle. With its easy-to-navigate interface, the GP-20 Amp Factory is a testament to how simplicity meets versatility, offering you a multitude of soundscapes without the hassle of lugging around heavy equipment. Whether on stage or in the studio, this pedal stands as a powerhouse of sound that fits right at your feet.

Key Features:

Ten combo options and four speaker cabinet emulations for an expansive range of sounds
Three-band EQ with an additional presence control for fine-tuning your tone
Dual-stomp design for intuitive operation and versatility
Capable of achieving a wide variety of tones, from classic tweed to British muscle

Product specs

Brand	Boss
Model	GP-20 Amp Factory
Finish	Black
Year	2000s
Made In	Taiwan
Categories	Amp Modeling Pedals
Color Family	Black

FAQs

What does the Boss GP-20 Amp Factory do?: The Boss GP-20 Amp Factory is an amp modeling pedal that simulates the sound of various classic amplifiers, allowing guitarists to achieve different tones without needing multiple physical amps.
Can the Boss GP-20 Amp Factory be used with a bass guitar?: While primarily designed for electric guitars, the Boss GP-20 Amp Factory can also be used with a bass guitar, but tonal results may vary depending on the specific amp models chosen.
How many amp models are included in the Boss GP-20 Amp Factory?: The Boss GP-20 Amp Factory features a selection of 22 classic and modern amp models, providing a wide range of tonal options for different musical styles.
Does the Boss GP-20 Amp Factory require a specific power supply?: The Boss GP-20 Amp Factory operates on a standard 9V DC power supply, which is common for many pedalboards and can be easily integrated into existing setups.
Is the Boss GP-20 Amp Factory suitable for live performances?: Yes, the Boss GP-20 Amp Factory is designed for both studio and live use, offering robust construction and versatile sound options that make it suitable for gigging musicians.