Used Barcus Berry 4000BRB Planar Wave System Microphone Preamp

Looking for pristine sound amplification for your acoustic instrument? This used Barcus Berry 4000BRB Planar Wave System Microphone Preamp is in excellent condition and delivers professional-grade tone shaping and signal clarity. Designed specifically for acoustic instruments, the 4000BRB features a proprietary Planar Wave pickup system, high-impedance input, adjustable volume and tone controls, and a rugged metal enclosure built for stage and studio use. Powered by a standard 9V battery or AC adapter (not included), it’s lightweight, portable, and provides low-noise performance. Perfect for guitar, violin, or other acoustic instruments, this legendary preamp ensures your natural tone cuts through the mix with exceptional detail and warmth.