Markbass Little Marcus 58R Marcus Miller Signature 500W Bass Amplifier Head

Professional Signature Bass Amplifier Head with Advanced Tone Shaping

The Markbass Little Marcus 58R is a professional 500W signature bass amplifier head developed in collaboration with legendary bassist Marcus Miller. Designed for modern players who need versatility, clarity, and powerful stage performance, it combines advanced EQ control with ultra-lightweight construction for maximum portability.

Built on Markbass’s renowned MPT power amplifier technology, the Little Marcus 58R delivers fast response, tight low-end control, and natural dynamics, making it suitable for studio recording, live performance, and touring setups.

Signature Marcus Miller Tone with Expanded Control

The Little Marcus 58R is engineered to reproduce Marcus Miller’s signature sound while offering flexible tone-shaping options for a wide range of musical styles. The dual EQ architecture provides both precision equalization and quick-access tonal character switching.

EQ1 offers a 5-band equalizer ranging from ultra-low to high frequencies for detailed tone control, while EQ2 introduces two signature voicings—Old School and Millerizer—allowing instant switching between vintage warmth and modern slap-driven tones.

Key Features

• Marcus Miller signature 500W bass amplifier head
• 5-band EQ1 for detailed tonal shaping
• EQ2 with Old School and Millerizer filter modes
• Ultra-lightweight design (approx. 2.17 kg)
• Bi-band limiter for fast, dynamic response control
• Balanced XLR DI output with pre/post EQ switching
• Ground lift and line level control for clean signal routing
• Mute switch for silent tuning and setup changes
• FX loop for external effects integration
• Footswitch support for EQ and mute control
• MPT (Mark Proprietary Technology) power amplifier section

High-Performance Power with Studio-Level Clarity

With 500W output at 4 ohms and 300W at 8 ohms, the Little Marcus 58R provides strong headroom for live stage performance while maintaining clear articulation and musical warmth. The bi-band limiter ensures smooth dynamic control, preventing harsh peaks while preserving natural attack and sustain.

The amplifier’s front-panel design improves workflow efficiency, placing all controls and connections within easy reach for fast setup and adjustments during performance.

Portable Design for Touring Musicians

Weighing just over 2 kg, the Little Marcus 58R is part of Markbass’s ultra-light MB58R generation, making it ideal for musicians who prioritize portability without compromising professional sound quality. Its compact chassis allows easy integration into pedalboard-based rigs or fly setups.

Despite its size, it delivers powerful stage performance suitable for small to large venues when paired with appropriate speaker cabinets.

Ideal Applications

• Professional live bass performance
• Touring and gigging musicians
• Studio recording and direct input setups
• Funk, jazz, fusion, and modern bass styles
• Slap and fingerstyle techniques
• Portable high-performance bass rigs

Technical Specifications

• Power Output: 500W @ 4Ω / 300W @ 8Ω
• Preamp: Solid State
• Power Amp: MPT (Mark Proprietary Technology)
• EQ1: 5-band (Ultra Low to High)
• EQ2: Old School / Millerizer filter voicings
• Limiter: Bi-band limiter system
• Outputs: XLR DI out (pre/post EQ), speaker outs
• Controls: Gain, Master, EQ, Filter selection, Mute
• Weight: Approx. 2.17 kg
• Series: MB58R

What’s Included

• Markbass Little Marcus 58R Bass Amplifier Head
• Power Cable
• User Documentation

The Little Marcus 58R delivers a refined balance of power, portability, and tonal flexibility, making it one of the most versatile signature bass heads in the modern Markbass lineup.