audio technica / ATW-1421, 2ch Body Pack System

System 20 PRO receiver and two bodypacks set. Connects to separately sold lavalier or headset microphones, ideal for speeches and presentations.

System 20 – Multi-Channel Wireless System
Key Features

Multi-Channel Capability
Up to 20 simultaneous channels can be used within the 2.4 GHz band. By connecting five receivers, the system supports up to 20 channels in HD mode, and up to 10 channels in Standard mode.

Transmitter Lineup
Four transmitter types are available: handheld, bodypack, boundary, and desk stand.

Compact 1U Half-Rack with 4-Channel Output

Network Support

Multi-Pairing Functionality
Up to four transmitters can be pre-registered per receiver channel. Transmitters automatically connect when powered on/off, eliminating the need for pairing each time and enabling smooth handovers.

Rechargeable via 2-Channel Charger
Compatible with ATW-CHG3a/A and ATW-CHG3Na/A.

Reduced Handling Noise for handheld microphones.

Long Operating Time — up to approx. 18 hours.

Secure Encryption — AES128 provides high confidentiality.

Detachable Receiver Units (ATW-RU14) allow flexible configurations for various applications.

Comprehensive Management via the dedicated Wireless Manager software.
More details: Wireless Manager – Audio-Technica

System Specifications

Operating Frequency Band: 2,402 – 2,480 MHz

Dynamic Range: 120 dB (A-weighted, typical)

THD (Total Harmonic Distortion): <0.05%, typical

Operating Range: 60 m (in open environment, free of interference)

System Frequency Response: 220 – 20,000 Hz (depending on microphone used)

Latency:

Standard Mode: 2.8 ms

HD Mode: 6.7 ms

Audio Sampling Rate:

Standard: 24-bit / 48 kHz

HD Mode: 24-bit / 48 kHz

Encryption: AES128

Max Simultaneous Channels:

Standard Mode: 10 channels (varies by region and environment)

HD Mode: 20 channels

Receiver Chassis: ATW-RC14

External Connection Port: RJ45

Network Port: RJ45 (Fast Ethernet)

Link In/Out Ports: RJ12

Output Levels:

Line Max: +22 dBu (+20 dBV)

Line Unity: -20 dBu (-22 dBV)

Mic Max: -12 dBu (-10 dBV)

Mic Unity: -50 dBu (-52 dBV)

Power Consumption: 3.7 W

Power Supply: DC 12 V 0.5 A (AC adapter)

Operating Temperature Range: 0 – +40°C

Dimensions: H42.5 × W209.8 × D165.6 mm

Weight: 740 g

Accessories: AC adapter, adapter blades, short/long rackmount adapters, 5 fixing screws, 30 cm link cable, 4 rubber feet

Receiver Unit: ATW-RU14

Modulation Method: GFSK

Reception Sensitivity: –90 dBm, typical

Antenna: 1/2 λ dipole antenna, diversity reception

External Port: RJ45

Power Supply: DC 12 V (via RC14)

Operating Temperature Range: 0 – +40°C

Dimensions: H18.7 × W86.0 × D70.2 mm

Weight: 77 g

Accessories: Holder, holder cover, 2 wood screws, 4 antennas

Bodypack Transmitter: ATW-T1401

Modulation Method: GFSK

Reception Sensitivity: –90 dBm, typical

Antenna: Diversity

Input Connector: 4-pin locking connector

Pin 1: GND

Pin 2: INST INPUT

Pin 3: MIC INPUT

Pin 4: DC BIAS +10 V

Power Supply: DC 3 V (two AA batteries)

Operating Temperature Range: 5 – +40°C

Battery Life (varies by usage conditions):

Alkaline AA: approx. 15 hours

Ni-MH rechargeable AA: approx. 14.5 hours

Lithium AA: approx. 29 hours

Dimensions: H107.4 × W63.7 × D22.7 mm

Weight: 80 g (without batteries)