Yamaha's smallest powered monitor speaker compatible with both line and mic inputs, the MS101-4 powered monitor speaker offers the flexibility needed for temporary or permanent use in applications requiring simple, compact monitors.

30W of amplifier power provides clean, high output sound
Redesigned enclosure for an even lower profile
Combo Input jack accepts both XLR and 1/4" connectors
Directly mountable on Euro microphone stands (Optional mic stand adaptor BMS-10A is available for adjusting tilt angle)

The de facto standard for compact monitoring in a simple form

The standard model in our range of desktop utility powered monitors, the MS101-4 offers portability in a compact design and simple but comprehensive functions for outstanding usability. The MS101-4 comes with a 3/8-16 threaded female mounting for direct attachment to a Euro microphone stand, and optional accessories can also be added for use in a wide range of applications.

Simple, portable, durable design

Yamaha Powered Monitor Speaker MS101-4: front and rear

With the controls (power switch, volume and tone controls) and the combo jack input on the lower front panel, the MS101-4 is simple and easy to operate.

The sturdy metal grill offers complete protection for the four-inch cone driver, while the rear panel is equipped with one stereo mini and two TRS Phone input connectors, and an AC inlet for excellent portability. The bass reflex port is also located on the rear surface, resulting in a more compact chassis.

The MS101-4 offers a compact, lightweight form that is both portable and durable.

AV Monitoring

Communications between FOH and Monitor engineers

Device Inspection Monitoring

		MS101-4
General specifications
Speaker type		Full range Powered Speaker, Bass-reflex Type
Frequency range (-10dB)		77 Hz–20 kHz
Maximum output level (1m; on axis)		115 dB SPL *1
Components	LF-HF	4" Cone, 1" Voice coil, Ferrite magnet
Dimensions	W	142 mm
	H	196 mm
	D	187 mm
Net weight		2.1 kg (4.6 lbs)
Flying and mounting hardware		Screw threads (bottom): 2 x M5 depth 11 mm pitch 60 mm (for 2, M5 x 6-10 mm screws), 1 x 3/8" depth 12 mm (for 1 x 3/8" x 9-11 mm screw)
Amplifier class		Class-D
Power rating	Dynamic	30 W
Power rating	Continuous	20 W
Cooling		Natural cooling (no fan)
I/O Connectors	Mic Input	[Front] INPUT: Combo, [Rear] INPUT LINE 1: Stereo Mini, INPUT LINE 2: Phone (TRS)
	Line Out	1 x Phone (TRS)
	AC	1 x AC inlet
Input impedance		[Front] INPUT: LINE=5.4 kΩ / MIC= 5.4 kΩ, [Rear] INPUT LINE 1,2: 10 kΩ
Input sensitivity		[Front] INPUT: LINE=-10 dBu / MIC=-40 dBu, [Rear] INPUT LINE 1, 2: -10 dBu (VOLUME: Maximum)
Input Level		[Front] INPUT: LINE=+5 dBu / MIC=-25 dBu, [Rear] INPUT LINE 1, 2: +5 dBu (Nominal Input Level / VOLUME: Center), [Front] INPUT: LINE=+20 dBu / MIC=-10 dBu, [Rear] INPUT LINE 1, 2: +20 dBu (Maximum Input Level)
Others		Controls: 1 x VOLUME, 1 x LOW CONTROL, 1 x HIGH CONTROL, POWER
Indicators		POWER (Green LED)
Power consumption		1/8 Power Consumption: 10 W, Idle Power Consumption: 3 W
Power requirements		100 V - 240 V, 50/60 Hz
Options		Mic stand adaptor BMS-10A, Free-angle clamp BAS-10, Wall mounting bracket BWS20-190, Ceiling bracket BCS20-150 / BCS20-210