※Since the VOL part has been remodeled, it is inexpensive. Active subwoofer equipped with a 20cm woofer unit. A simple design with a built-in 50W power amplifier and a volume and power switch on the back. Advanced Yamaha Active Servo Technology 2 allows playback from 28 Hz even though it is small. The exterior has dullness and scuffs. The input terminals are inside the VOL cover. Serial I924312RT (Tamura Eiji)
Maintenance information: 2023.5.5 operation confirmed
Accessories: instruction manual
Main specifications: Advanced Yamaha Active Servo Technology 2 output 50 W playback frequency band 28 Hz to 200 Hz speaker unit 20 cm cone type (non-magnetic) W291 x H292 x D341 mm 8.5 kg