Audio-Technica ATW-R3250DF2 Wireless In-Ear Monitoring DF2: 470.125 - 607.875 MHz

UHF Body-Pack Receiver for the 3000 Series IEM System

The Audio-Technica ATW-R3250DF2 is a wireless in-ear monitor receiver built for the 3000 Series In-Ear Monitoring System, operating on Band DF2 from 470.125 to 607.875 MHz. Antenna diversity and a 138 MHz tuning bandwidth keep the RF link stable in congested venues, while the integrated OLED screen surfaces every key setting at a glance. Designed for touring musicians, houses of worship, and broadcast crews, this receiver pairs with the matching ATW-T3205 transmitter to deliver clean stereo monitoring across up to 49 simultaneous channels per band.

What Sets This Receiver Apart

Antenna diversity uses the headphone cable as a secondary antenna, improving RF stability when the unit is moving on stage. The receiver also doubles as an RF scanner: a full scan from a single unit can be deployed across every network-connected transmitter through the Wireless Manager software, eliminating third-order intermodulation without external coordination tools. A built-in cue mode lets engineers audition up to 10 stored channels, while the level-lock feature prevents accidental volume bumps mid-set.

RF Performance and Tuning Range

The wide UHF tuning window gives engineers room to find a clean frequency even in the most crowded RF environments, with 25 kHz minimum step resolution for precise channel allocation.

• Frequency Band: 470.125 to 607.875 MHz (Band DF2) — 138 MHz of tuning bandwidth across the legal UHF spectrum
• Operating Range: 90 m (open environment) — line-of-sight coverage for medium to large stages
• Simultaneous Channels: 49 per band — supports full-band monitor rigs for bands, churches, and broadcast crews

Audio Quality and Headphone Output

Optimized internal DSP delivers wide stereo separation and low distortion, while the built-in headphone amp drives in-ear monitors with consistent clarity at any listening level.

• Frequency Response: 40 Hz to 14.1 kHz — full-range monitoring with extended highs for vocal articulation
• Stereo Separation: 75 dB — clean left/right imaging for true stereo playback
• Headphone Output: 40 mW at 12 ohms via 3.5 mm TRS jack — drives professional IEMs with low noise floor

Power, Controls, and Charging

The receiver runs on two AA batteries with selectable battery-type detection for accurate runtime readouts, and it docks into the ATW-CHG3 or ATW-CHG3N charging station for fast turnaround between sets.

• Battery Life: 4–6 hours alkaline, 5–7 hours Ni-MH (1900 mAh), 11–13 hours Lithium — covers full rehearsal and show cycles
• On-Body Controls: Back, Balance, Display, EQ, Function, Gain, Limiter, On/Off, Set, Sync, Volume — full menu access from a single jog dial
• Custom Audio Settings: EQ (80/160/320 Hz low, 6/8/10 kHz high, ±9 dB), Limiter (-30 dB to OFF in 6 dB steps) — fine-tune each performer's mix