The item looks in good condition, it makes a nice accompaniment to a system just using top speakers making a warmer sound. There are good size wheels fixed to the back making it easy to move around but it is heavy to lift. you will need to collect in person or sort out your own carriage for this item due to its weight and size.
The Yamaha MSR800W Active Sub Woofer. Warm, rich, detailed 40 Hz to 120 Hz tone and very light for easy portability.The Yamaha MSR800W powered subwoofer is the perfect companion for the MSR400, extending the low end and completing the musical spectrum for maximum punch and impact. The high-quality birch plywood bass-reflex cabinet houses a 15 inch cone woofer powered by an ultra-efficient burst 800 watts amplifier, a configuration that can deliver the elusive 40 Hz to 120 Hz frequency range with precision and authority. Two balanced XLR connectors are provided for connection to the source, and that same signal can be directly passed on to the main speakers via a pair of XLR THRU outputs. Alternatively, the main speakers can be fed by the MSR800Ws dual HIGH PASS outputs, high-pass filtered at 80 Hz to 100 Hz, depending on the setting of the cutoff frequency control, with a steep 18 dB/octave cutoff slope