This manual provides instructions for the Yamaha MS150, a powered monitor speaker featuring a 30 cm (12") bass unit and a treble horn. It includes safety precautions, detailed explanations of rear panel controls such as the EQ, gain, and bypass switches, and guidance on connecting the unit to various audio sources like microphones and line-level devices.
The document also outlines two specific system setup scenarios: one for driving a microphone, keyboard, and CD player, and another for cascading multiple units using a mixer. Technical specifications, including frequency response, power output, and dimensions, are listed alongside a block diagram and protection circuit details.
| Frequency range | 50 Hz to 18 kHz |
|---|---|
| Maximum SPL | 118 dB (1 m) on axis |
| Dimensions | 373 x 470 x 301 mm |
| Sensitivity | 97 dB (1 W, 1m) |
| Nominal impedance | 6 ohms |
| Maximum output | 150 W |
| Power consumption | 130 W |
The frequency range is 50 Hz to 18 kHz when the HIGH and LOW controls are set to the center position.
Up to three MS150 units can be cascaded using the LINE OUT rear panel jack.
US and Canadian models require 120 VAC at 60 Hz.
The maximum SPL is 118 dB measured at 1 meter on axis.