Unleash your bass's full potential with the Gallien-Krueger 400RB-IV 280W Bass Head. This robust yet lightweight amplifier head is designed to deliver 280 watts of pure GK power, ensuring your sound cuts through any mix with clarity and precision. With its high current capacity, the 400RB-IV leaves no room for compromise, offering a dynamic range that breathes life into every note you play.

Tailor your sound with ease using the onboard contour, presence, and 4-band active EQ controls. Whether you're after a smooth, mellow tone or a gritty, aggressive edge, the boost knob lets you dial in the perfect amount of growl. The innovative String Bass button is your secret weapon for seamless transitions between 4- and 5-string basses, ensuring optimal low-end response for each instrument.

The 400RB-IV's G.I.V.E. (Gate Induced Valve Effect) technology adds just the right touch of tubularity, providing that classic GK growl while retaining the modern clarity you crave. And when it's time to hit the stage or studio, the direct-out feature makes integration with PA systems and recording consoles a breeze.

Built for reliability and low-noise operation, the Gallien-Krueger 400RB-IV is more than just an amplifier head—it's a versatile tool that adapts to your playing style, giving you the freedom to express your musical identity with confidence.

Key Features:

• 280 watts of power at 4 ohms
• 4-band active EQ with contour and presence controls
• Boost knob for additional growl
• String Bass button for optimal voicing with 4- or 5-string basses
• G.I.V.E. technology for classic GK tubularity
• Direct-out for easy connection to PA systems or recording consoles
• High current capacity for dynamic sound
• Low noise operation and smart protection circuitry