2-3 Weeks. 45 Day Lowest Price - 100% Satisfaction Guarantee. The MSR800W high-quality birch plywood bass-reflex cabinet houses a 15" cone woofer powered by an ultra-efficient burst 800 watts amplifier, a configuration that can deliver the elusive 40 Hz through 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.