Yamaha DSR215 Dual 15 Inch Powered Speaker - 850 Watts, 15" LF X 2" 45
Found another old time beast! This is the Yamaha Dsr-2000: fm monster with a ton of functions, pitch and mod wheel, voice data screen for patch adjustments, and even the option of
DSR Series - Overview - Speakers - Professional Audio - Products - Yamaha USA
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Yamaha DSR-215 Active PA Speaker, 1300 Watts | zZounds
DSR Series - Overview - Speakers - Professional Audio - Products - Yamaha - Africa / Asia / CIS / Latin America / Middle East / Oceania