You're looking at a pair of Yamaha MSP10 Powered Monitors with Custom Finished Wood Enclosures -only a few were made between 1995-2000. Plenty of power on hand to drive these devices, with 120W set aside for the bass/mid-range driver and 60W for the tweeter. At these powers, the distortion is better than 0.02 percent, with hum and noise at better than -67dBu (volume on minimum) and a signal-to-noise ratio of 98dB or better. The crossover has a very steep 30dB/octave slope, which prevents the tweeter from being fed a significant amount of energy below its rated frequency range and also reduces the amount of potentially disruptive overlap between the drivers at the crossover point. A frequency response of 40Hz to 40kHz is quoted, though this is measured at the -10dB points rather than the normal -3dB points. Looking at the frequency graph, this probably equates to a lower limit of just over 50Hz when measured conventionally.
A few scratches (Please see photos) but in great working condition!