Yamaha MS101-4  Compact 30W Powered Monitor Speaker with XLR/TRS Combo Input & Desktop Utility Design

Product Introduction

The Yamaha MS101-4 is a compact and versatile 30W powered monitor speaker, designed for desktop use, small setups, and portable monitoring applications. With a 4" full-range driver, bass-reflex enclosure, and Class-D amplifier, it delivers clear, high-output sound up to 115 dB SPL. The MS101-4 features a combo input (XLR/TRS), stereo mini jack, TRS input, and line out, making it highly flexible for various professional and educational environments. Its compact form, lightweight design (2.1kg), and mounting options (mic stand, wall, ceiling) make it a practical choice for utility monitoring.

Key Features / Bullet Points

• Compact Full-Range Powered Monitor Speaker – 4" cone driver with ferrite magnet

• Clear & Powerful Output – 77Hz–20kHz frequency range, 115 dB SPL max output

• Class-D Amplifier – 30W dynamic (20W continuous) power

• Versatile Connectivity – Combo input (XLR/TRS), stereo mini jack, TRS input, TRS line out

• Flexible Controls – Volume, Low, High EQ controls

• Mounting Options – Mic stand (with BMS-10A), wall, ceiling, or clamp

• Lightweight & Portable – Only 2.1 kg with natural cooling (no fan noise)

• Universal Power Supply – 100–240V, 50/60Hz

� Technical Specifications

• Speaker Type: Full-range Powered Speaker (Bass-Reflex)

• Frequency Range (-10dB): 77Hz – 20kHz

• Max Output Level: 115 dB SPL (1m, on-axis)

• Driver: 4" Cone, 1" Voice Coil, Ferrite Magnet

• Amplifier: Class-D, 30W Dynamic / 20W Continuous

• Cooling: Natural cooling (no fan)

• Inputs:

  • [Front] Combo Jack (XLR/TRS)

  • [Rear] LINE 1: Stereo Mini, LINE 2: TRS Phone

• Line Out: TRS Phone ×1

• AC Inlet: 1 × AC power connector

• Input Impedance: LINE/MIC: 5.4kΩ, LINE 1/2: 10kΩ

• Input Sensitivity: LINE: -10 dBu, MIC: -40 dBu

• Max Input Level: LINE: +20 dBu, MIC: -10 dBu

• Controls: Volume, Low, High, Power

• Indicators: Power (Green LED)

• Power Consumption: 10W (1/8 Power), 3W (Idle)

• Power Supply: 100–240V AC, 50/60Hz

• Mounting Options: Mic Stand (BMS-10A), Clamp (BAS-10), Wall (BWS20-190), Ceiling (BCS20-150/210)

• Dimensions (W×H×D): 142 × 196 × 187 mm

• Net Weight: 2.1 kg (4.6 lbs)