The Gallien-Krueger MB200 is an ultra-compact solid-state bass amplifier head designed to deliver the signature GK punch, fast transient response, and reliability in a highly portable, gig-ready format. Despite its small size, it provides serious stage volume and studio-clean tone.

I have owned this unit for almost 14 years and have used it twice. It has always been my well cared for backup rig.

Type
Bass Amplifier Head

Model
MB200

Manufacturer
Gallien-Krueger

Country of Manufacture
USA

Year of Introduction
Early 2010s

Controls
Gain, 4-band active EQ (Bass, Low Mid, High Mid, Treble), Master Volume, and Power switch

Input
¼″ instrument input

Output
¼″ speaker output AND balanced XLR Direct Output for PA or recording

Power Supply
Internal switch-mode power supply with AC mains connection

Wattage
200 watts @ 4 ohms

Notable Features

• Extremely lightweight and compact design ideal for touring, fly dates, and backup rigs
• Classic Gallien-Krueger fast, punchy solid-state attack with tight low end
• Professional balanced DI output for direct-to-PA or recording use
• Active 4-band EQ offering precise tone shaping across the full bass spectrum
• High headroom for clean bass tones at stage volume
• Reliable, road-worthy construction despite its minimal footprint
• Popular among working bassists needing maximum power in a minimal package