Boss LMB-3 Bass Limiter Enhancer Guitar Effect Pedal Foot Switch Processor (LMB3 LMB 3) Enhancers GAIN knob：Controls the drive level

GAIN knob：Controls the drive level of Horseman circuit

The bass reproduction penetrates very deeply

Alesis Harmony 32 Key Portable Arranger Keyboard With Speakers And Recording Function

High Performance Low Noise Design

special materials or unique design: every beyerdynamic microphone has its own Sound Channelling Technology (SCT) to ensure optimal control of the sound waves

Boss LMB-3 Bass Limiter Enhancer Guitar Effect Pedal Foot Switch Processor (LMB3 LMB 3) Enhancers GAIN knob：Controls the drive levelBoss LMB 3 Bass Limiter Enhancer Guitar Effect Pedal Foot Switch Processor (LMB3 LMB 3) The LMB 3 affords complete control over a bass guitar's dynamic range using a limiter effect and an enhancer circuit designed specifically for electric bass. Full control of dynamic range via threshold level and ratio knobs The enhancer provides increased bass clarity and presence AC adapter or 9V battery operation