Fully tested, in excellent all round condition. There are couple of small dings to case. Requires a standard FX pedal 9v power pack, not supplied.

The Keeley Bassist Compressor is a high-fidelity compression and limiting pedal designed specifically for bass guitars. It's built around the exotic and extremely high-fidelity THAT Corp. 4320 chip, making it a studio-grade compressor in a stompbox format.

Key Features

• High-performance Voltage Controlled Amplifiers (VCAs)
• On-board true-RMS detector
• Ultra-high-performance op-amps
• Compression Ratio Control (1:1 to hard-knee limiter)
• Threshold Control (adjustable peak detection)
• Gain Control (boost or compression)
• Threshold Indicator light
• Low noise and high bandwidth (over 20 KHz)

Characteristics

• Musical and transparent compression
• Suitable for active pre-amps and line-level input signals
• No coloration or pumping
• Allows for precise control over compression
• Can be used as a limiting amplifier to prevent speaker clipping and distortion

Settings and Usage

• Compression Ratio: Adjust to desired level of compression (1:1 to hard-knee limiter)
• Threshold: Set to detect peaks in your signal and limit distortion
• Gain: Use as a boost or compression control
• Attack and Release times: Varying depending on program content (adaptive)