SOUND MASKING SYSTEM > Products > Main unit > AMS-H4

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ACURIS

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SOUND MASKING SYSTEM

Main unit

Output unit

Sensor unit

Speaker unit

Control unit
AMS-H4

4-channel sound masking main unit

AcouMaster 4-channel

(AMS-H4)

AcouMaster 4-channel

(AMS-H4)

System Features

  • Set each channel independently

    • 1,2,3,4 independently set/adjustable channels

  • Supports up to 40 speaker extensions

    • Supports up to 40 speaker extensions per channel (up to 240 speakers/requires additional ampoule)

  • Cover of 4~25㎡

    • Cover 4~25㎡ per speaker

  • Ambient Noise Collection / Analysis Sensor

    • Up to 4 sensors per channel can be connected for ambient noise collection and analysis (up to 16 sensors in total). (Connection distance: up to 300 m via RJ45 LAN cable)

  • Paging System and BGM Support

    • Two input channels can be used for a paging system and BGM. (Independent level control for each channel is supported.)

  • Automatic Ambient Noise Analysis and Neutralization Sound Level Adjustment

    • Analyzes ambient noise levels in real time and automatically adjusts the neutralization (masking) sound level and level change time. (Level adjustment: ±15 dB
      Level change time: 1–9 seconds per level)

  • Real-Time Noise Monitoring

    • Ambient noise levels collected by real-time noise sensors, along with noise levels for each octave band, are stored and can be monitored in real time. (Up to 4 channels can be displayed on a single screen.)

  • Automatic / Manual Frequency-Level Setting for Independent Neutralization (Masking) Sound

    • Using 1/6-octave (HD Octave™) technology, the system generates a sound spectrum and allows the frequency level of the neutralization (masking) sound to be set automatically or manually for each channel.

  • Automatic Masking Sound Calibration for the Noise Environment

    • The Auto Calibration function automatically calibrates the masking sound for the environment and provides six selectable masking sound settings.

  • Front LED Display and Button Controls

    • The front LED display and buttons allow users to check the masking sound level directly on the unit.

  • PC communication capability support

    • PC communication capability support (LAN, USB)

  • System Operation Scheduling

    • Supports weekly (Sun.–Sat.) and daily (24-hour) ON/OFF scheduling.

  • Main Unit Power Consumption: 8 Wh or Less

    • Main unit power consumption: 8 Wh or less

  • KC Certification

    • MSIP-REM-Aec-AMS

  • Item Registered with the Korea ON-line E-Procurement System (KONEPS) (23307243)

    • KONEPS Online Shopping Mall
    • Designated as an Excellent Procurement Product
Specification
MASKING OUTPUT
MASKING OUTPUT
Masking Output Channels 4
Speakers per Output Channel 40
Maximum Number of Speakers 240 (including AMA)
NEUTRALIZATION SOUND (MASKING SOUND)
NEUTRALIZATION SOUND (MASKING SOUND)
Volume Level Adjustment 30 - 70 dB with Mute support
Masking Sound Equalizer Automatic calibration or manual adjustment of 50 spectrum bands (1/6 octave) from 50 Hz to 14.4 kHz
Masking Spectrum 12 preset spectra and user-adjustable manual settings (50 spectrum bands)
AUTOMATIC LEVEL CONTROL
AUTOMATIC LEVEL CONTROL
Sensor Ports 2 (RJ45)
Sensor Connections Up to 16 sensors (daisy-chain connection)
Sensors per Channel Up to 4
Sensor Control Independent sound masking volume control for each channel
AUTOMATIC LEVEL ADJUSTMENT
AUTOMATIC LEVEL ADJUSTMENT
Adjustment Range -15 to +15 steps based on the preset masking level
Automatic Masking Level Adjustment Level change time can be set for each step
- Normal Mode: 1–9 sec.
- Fast Mode: 0.2–2.0 sec.
- Automatically switches to Fast Mode when
a noise fluctuation of 6 dB or more is detected
AUDIO INPUT PORTS
AUDIO INPUT PORTS
Ports 2
Mixer Function Mixes audio sources with the masking output for each main channel. Each of the two input ports can be independently mixed or muted.
Volume Level Adjustment 30 - 70 dB with Mute support
SCHEDULING
SCHEDULING
Schedule User-configurable weekly schedule (7 days, Sun. - Sat.)
with hourly ON/OFF settings for each day
Operation Operates in Low-Power (OFF) or Normal (ON)
Mode according to the preset schedule
NOISE DATA STORAGE
NOISE DATA STORAGE
Data Stored SPL (Sound Pressure Level), MSL (Masking Sound Level),
and 20-band spectrum data
Storage Capacity 4 MB memory; stores up to 6 days of 4-channel data
DISPLAY & BUTTON FUNCTIONS
DISPLAY & BUTTON FUNCTIONS
Display 20 characters × 2 lines, 40 characters total, 82 × 18 mm
Buttons 5 (Power, Cancel, Select, Mute, Program & Enter)
POWER
POWER
Adapter 220 VAC, 60 Hz / 24 VDC, Max. 60 W
PHYSICAL SPECIFICATIONS
PHYSICAL SPECIFICATIONS
Dimensions (W × D × H) 430 × 300 × 88 mm
Weight 5.5 kg (6.8 kg including packaging)
WARRENTY
WARRENTY
Service Warranty 1 year (standard)
Product Service Life 8 years