Products Lineup

Data Library

Here, TOA’s Data Library equipped with a search engine offers its CAD drawings made out in pdf and dwg forms, EASE data, specification sheets, brochures, instruction and installation manuals, and a wealth of other product data for your downloading.


ML-301B Melody Chime



Employing an internal FM sound source, the ML-301B plays back Westminster chime as a time signal at times preset by timer. It also sounds a four-tone chime as a paging pre-annoucement tone.

Power Requirements AC mains, 50/60 Hz
Power Consumption 4 W
Output 0 dBV, 600 Ω, Unbalanced
Control System Microprocessor control
Tone Generator Frequency modulation
Programs Westminster 22 s〜46 s (adjustable 10 steps)
4-tone chime (440,554,659 and 880 Hz ± 5%)
Activation Front switch or remote control
Remote Make contact × 1, Capacity of contact DC 24 V 0.5 A
Operating Temperature 0 ℃〜+50 ℃
Color Panel : Black
Dimensions(W×H×D) 420 (16.54")×47.5 (1.87")×246.5 (9.70") mm
Weight 2.4 kg (5.29 lb.)
Accessories AC power supply cord (2 m)…1 Connection cord (2 m) with phone plug…1
Optional Accessory Rack mounting bracket (MB-15B)
  • Contact Us
  • A&E Specification Download
  • TOA UHF Wireless Microphone System
  • SounDoh WIKISound tips: text version
  • SounDoh VIDSound tips: video or animation version

Top of the Page

About TOA

TOA is a company established in 1934, in Kobe, Japan. We provide innovative solutions and products centering those which provide sound. What TOA values is people’s smile. With more than 30 locations, we contribute to create a safe and reliable society globally with excitement, supporting the needs of local community.