The Audio-Technica ATW-1427 Dual Wireless Desk Stand Microphone System is a 2-channel digital wireless setup featuring an ATW-R1440 rack-mount receiver chassis, an ATW-RU14 receiver unit, four 2.4 GHz antennas, and two ATW-T1407 boundary transmitters.

The Audio-Technica ATW-1427 Dual Wireless Desk Stand Microphone System provides professional 24-bit/48 kHz digital wireless operation for high-quality audio performance. This System 20 Digital Wireless System operates in the 2.4 GHz range, ensuring a signal free from TV interference. The system includes one ATW-R1440 receiver chassis and two ATW-T1407 desk stand transmitters, offering a plug-and-play solution for various audio environments.
The ATW-1427 utilizes digital 24-bit/48 kHz wireless technology to deliver dependable performance and clear sound quality. Users can select between two operating modes to suit specific needs: Standard mode provides 10 channels with minimized latency, while HD mode supports up to 20 channels to maximize the total channel count. For secure communications, the system employs AES128 encryption.
The ATW-R1440 receiver chassis is designed for versatility in both local and remote setups. Receiver units can be docked directly in the half-rack chassis or mounted remotely up to 328 feet away using an Ethernet cable. This flexibility allows for optimal antenna placement and signal reception. For larger installations, up to five chassis can be linked and operated simultaneously. The system includes short and long rack ears, which can also be used as a joining plate to secure two chassis in a single rack space.
The ATW-1427 system integrates with Audio-Technica’s Wireless Manager software, enabling centralized management of settings and operations. Users can configure, monitor, and save device settings as projects within the software. The system also supports the Syslog protocol for advanced data logging.
Each receiver channel can pair with up to four transmitters, allowing for rapid switching between different configurations. The included ATW-T1407 desk stand transmitters provide a stable boundary microphone solution. For systems utilizing body-pack transmitters, the system supports water- and sweat-resistant cW-style locking 4-pin connectors. Additionally, the system supports mixed output for use cases where input channels are limited. Transmitters are compatible with ATW-CHG3/ATW-CHG3a and ATW-CHG3N/ATW-CHG3Na charging docks for recharging NiMH batteries via integrated charging terminals.
| Operating Frequencies | 2,402 to 2,480 MHz |
| Dynamic Range | 120 dB (A-weighted), typical |
| Total Harmonic Distortion | < 0.05%, typical |
| Maximum Simultaneous Use (recommended) | Standard: 10 channels; HD mode: 20 channels; It depends on the region and environment. |
| System Frequency Response | 20 to 20,000 Hz; Varies depending on the microphone to be installed. |
| Delay | Standard: 2.8ms; HD mode: 6.7ms |
| Audio Sampling Rate | Standard: 24-bit/48 kHz; HD mode: 24-bit/48 kHz |
| Encryption Method | AES128 |
| Receiver & Transmitter Specifications | ATW-R1440; ATW-RC14 |
| External Receiver Unit Port | RJ45 |
| NETWORK Port | RJ45: Fast Ethernet |
| LINK IN/OUT Port | RJ12 |
| Output Level | LINE max: +22 dBu (+20 dBV); LINE Unity: -20 Bu (-22 dBV); MIC max: -12 dBu (-10 dBV); MIC Unity: -50 dBu (-52 dBV) |
| Power Consumption | 3.7W |
| Power Supply | 12 V DC, 0.5 A (AC adapter) |
| Operating Temperature Range | 0ºC to +40ºC (32°F to 104°F) |
| Dimensions | 209.8 mm (8.3") × 165.6 mm (6.5") × 42.5 mm (1.7") (W × D × H) |
| Weight | 740 g (26 oz) |
| Included Accessories | AC adapter, AC adapter blade, short rack-mount adapter, long rackmount adapter, fixing screw × 5, link cable (30 cm [12"]), leg × 4 |
| Modulation Mode | GFSK |
| RF Output Power | 10mW EIRP |
| RF Sensitivity | -90 dBm, typical |
| Antenna | 1/2 wave dipole antenna, true diversity |
| External Connection Port | RJ45 |
| Power Supply | 12 V DC (RC14) |
| Operating Temperature Range | 0ºC to +40ºC (32°F to 104°F) |
| Dimensions | 86.0 mm (3.4") × 70.2 mm (2.8") × 18.7 mm (0.74") (W × D × H) |
| Weight | 77 g (2.7 oz) |
| Included Accessory | Unit holder, holder cover, wood screws x 2, antenna x 4 |
| Modulation Mode | GFSK |
| RF Output Power | 10mW EIRP |
| RF Sensitivity | -90 dBm, typical |
| Antenna | True diversity |
| Input Connection | Four pin locking connector; Pin 1: GND; Pin 2: INST INPUT; Pin 3: MIC INPUT; Pin 4: DC BIAS +10 V |
| Battery | 3 V DC (two 1.5 V AA) |
| Battery Life | AA alkaline batteries: Approx. 15 hours; AA nickel-hydrogen batteries: Approx. 14 hours and 30 minutes; AA lithium batteries: Approx. 29 hours; This varies depending on usage conditions. |
| Operating Temperature | 5ºC to +40ºC |
| Dimensions | 63.7 mm (2.5") × 22.7 mm (0.89") × 107.4 mm (4.2") (W × D × H) |
| Weight | 80g (2.8 oz), without batteries |
| Modulation Mode | GFSK |
| RF Output Power | 10mW EIRP |
| RF Sensitivity | -90 dBm, typical |
| Antenna | True diversity |
| Microphone Type | Dynamic |
| Microphone Polar Pattern | Hypercardioid |
| Battery | 3 V DC (two 1.5 V AA) |
| Battery Life | Approx. 18 hours (alkaline); Approx. 16 hours 30 minutes (Ni-MH); Approx. 35 hours (lithium); This varies depending on usage conditions. |
| Operating Temperature Range | 5ºC to +40ºC (41°F to 104°F) |
| Dimensions | 265.0 mm (10") × 53.7 mm (2.1") |
| Weight | 300 g (11 oz), without batteries |
| Included Accessories | Mic holder AT8456a, converting thread adapter (3/8" - 5/8") |
| Modulation Mode | GFSK |
| RF Output Power | 10mW EIRP |
| RF Sensitivity | -90 dBm, typical |
| Antenna | True diversity |
| Maximum Input Sound Pressure Level | 139 dB SPL |
| Microphone Type | Condenser |
| Microphone Polar Pattern | Cardioid |
| Built-in Battery | 3.7V lithium-ion battery (5.5Wh, 1460mAh) |
| Battery Life | Approx. 12 hours; This varies depending on usage conditions. |
| Charging Time | Approx. 3 hours and 10 minutes; This varies depending on usage conditions. |
| USB Charging Port | USB Type-C (USB 2.0) |
| Operating Temperature Range | 5ºC to +40ºC (41°F to 104°F) |
| Dimensions | 90.5 mm (3.6") × 129.4 mm (5.1") × 31.9 mm (1.3") (W × D × H) |
| Weight (with battery) | 510 g (18 oz), including battery |
| Included Accessories | USB power supply adapter, USB power supply adapter blade, USB cable (1.5 m [4.9']) |
| Modulation Mode | GFSK |
| RF Output Power | 10mW EIRP |
| RF Sensitivity | -90 dBm, typical |
| Antenna | True diversity |
| Microphone | Gooseneck microphone supported |
| Phantom Power Supply | DC24V |
| Built-in Battery | 3.7 V lithium-ion battery (5.5 Wh, 1,460 mAh) |
| Battery Life | When using a gooseneck microphone with no LED: Approx. 12 hours; When using a gooseneck microphone with an LED: Approx. 8 hours; This varies depending on usage conditions. |
| Charging Time | Approx. 3 hours and 10 minutes; This varies depending on usage conditions. |
| USB Charging port | USB Type-C (USB 2.0) |
| Operating Temperature Range | 5ºC to +40ºC (41°F to 104°F) |
| Dimensions | 90.5 mm (3.6") × 129.4 mm (5.1") × 47.6 mm (1.9") (W × D × H) |
| Weight | 490 g (17 oz), including battery |
| Included Accessories | USB power supply adapter, USB power supply adapter blade, USB cable (1.5 m [4.9']) |
| Length | 17 In. |
|---|---|
| Width | 16 In. |
| Height | 6.75 In. |
| Weight | 8.9 lbs |
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