MXR M87 Bass Compressor Pedal

The MXR M87 Bass Compressor: Studio-Quality Compression for the Stage

Transparent Compression with Studio-Level Control

The MXR M87 Bass Compressor brings professional studio compression to your pedalboard, offering complete control over your dynamics. With Attack, Release, Ratio, Input, and Output controls, you can dial in anything from subtle peak limiting to tight, squashed compression effects. Whether you need smooth sustain or precise dynamic control, this pedal ensures clarity and balance across all playing styles.

CHT™ Constant Headroom Technology for Clear Performance

Equipped with MXR's Constant Headroom Technology (CHT™), the M87 provides exceptional headroom and maintains full dynamic range until reaching the compression threshold. This ensures natural and transparent tone, preserving the character of your bass while delivering controlled and even output.

Real-Time Gain Reduction Monitoring

A 10-LED gain reduction meter provides clear, real-time feedback on how much compression is being applied. This visual indicator allows you to fine-tune your settings quickly, ensuring optimal performance whether on stage or in the studio.

Compact, Durable, and Pedalboard-Friendly

Built with a rugged, lightweight aluminum housing, the M87 Bass Compressor is designed for reliable performance in any gigging environment. Its compact size-comparable to a Phase 90 pedal-makes it easy to integrate into any pedalboard setup.

Versatile Bypass and Power Options

With true hardwire bypass, your signal remains pure when the pedal is disengaged. Running on 9V DC power, the M87 operates efficiently with a low current draw, making it an excellent choice for both studio and live applications.

Specifications

• Input Impedance: 1 MΩ
• Output Impedance: 600 Ω
• Max Input Level: +14 dBV
• Max Output Level: +8.5 dBV
• Frequency Response: ±1 dB, 20 Hz to 20 kHz
• Noise Floor: -90 dBV
• Total Harmonic Distortion (THD): >0.5%
• Gain: 31 dB
• Compression Ratios: 4:1, 8:1, 12:1, 20:1
• Attack Time: 20 µs to 800 µs
• Release Time: 50 ms to 1.1 s
• Bypass: True Hardwire
• Current Draw:
  • LEDs OFF: 14 mA
  • LEDs ON: 19 mA
• Power Supply: 9V DC

This effects pedal ships fully insured with signature required.