...and Sandoz (used to) make LSD -25 😀 ... I did ride a Yamaha DT-125E mighty 125 cc Enduro back in 1970s. How did we get so off topic???
Yamaha Audio makes a line of passive PA speakers called the CBR series. CBR is normally associated with Honda Motorcycles...CBR250, CBR400, CBR600, CBR900, CBR929, CBR954, & CBR1000.