The Branson Purple Booster (Aluminum, Amplitude Ratio 1:0.6)—Part No. 101‑149‑055—is an ultrasonic amplitude booster designed for 20 kHz systems, common in Branson 2000-series ultrasonic welders. Crafted with an aluminum body and purple color coding, it reduces amplitude (attenuates) by a factor of 0.6, providing controlled energy output. Ideal when reduced displacement is required, it integrates seamlessly into ultrasonic stacks without altering system frequency