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Audio-Technica ATW-3255 3000 Series Wireless In-Ear Monitor System
The ATW-3255 is built for performers, houses of worship, and live-venue sound integrators who want professional-grade audio without the professional-grade sticker shock. This wireless IEM system delivers reliable RF performance, exceptional stereo clarity, and straightforward operation — from the stage to the back of the room.
Sound That Gets Down to Business
The ATW-3255 wasn't built to impress spec sheets — it was built to impress audiences. At the heart of the system is an optimized internal digital signal processing engine that carves out exceptional stereo separation, putting your mix exactly where you want it: in your ears, not floating somewhere vaguely in your direction. Whether you're dialing in a front-of-house feed or feeding monitors to your lead vocalist mid-set, the clarity is immediate and natural.
Optimized Internal DSP: Delivers exceptional stereo separation and clean signal processing, keeping your audio precise and interference-free at every performance.
Included ATH-E40 In-Ear Monitor Headphones: Proprietary dual phase push-pull drivers provide remarkable accuracy and clarity, so every nuance in your mix comes through exactly as intended.
Efficient Headphone Amplifier: The body-pack receiver's built-in headphone amp ensures clean, natural sound reproduction without distortion, even at higher listening levels.
RF Stability That Keeps You Connected All Night
Nothing kills a live performance faster than a dropout — except maybe a singer who forgot the second verse. The ATW-3255 tackles the RF side of things with a wide UHF tuning bandwidth of 138 MHz across the DF2 frequency band (470–608 MHz), giving you serious room to maneuver in congested RF environments. Receiver antenna diversity keeps the signal locked and stable, so your performers stay connected even when the venue's RF environment is doing its worst.
138 MHz UHF Tuning Bandwidth (DF2: 470–608 MHz): An exceptionally wide tuning range means you have plenty of clean frequency real estate to work with, no matter how crowded the RF spectrum gets.
Receiver Antenna Diversity: Dual-antenna technology on the body-pack receiver actively improves RF stability, reducing the risk of dropouts during critical live moments.
Interference-Free Channel Deployment: Deploy a full channel plan to all network-connected transmitters via a single RF scan from one receiver — no third-order intermodulation, no drama.
Control, Flexibility, and Features That Just Make Sense
The ATW-3255 is loaded with features that audio engineers will appreciate and performers won't have to think twice about. OLED screens on both the transmitter and receiver give you an at-a-glance read of all key settings, while Audio-Technica's Wireless Manager software lets you monitor and control the entire system from a network-connected device. Custom audio settings — including EQ, limiter, gain control, and balance — put the finishing touches on your personal mix.
OLED Displays on Transmitter & Receiver: Clear, high-contrast screens make it easy to read critical settings and alerts at a glance, even under stage lighting that has no respect for your eyeballs.
Wireless Manager Software Integration: Full network monitoring and control via Audio-Technica's Wireless Manager software means you can manage the whole system remotely, without sprinting across the venue.
Stereo/Mono Operation with Pan & Personal Mix Controls: Flexible operation modes with pan and personal mix controls let each performer dial in exactly the blend they need, giving everyone on stage their own sonic comfort zone.
A Wireless IEM System Built for the Long Haul
The ATW-3255 is the gear that quietly steals the show. Its shared DNA with Audio-Technica's popular 3000 Series means seamless integration if you're already in that ecosystem — same charging stations, same workflow, same rock-solid reliability. With up to 7 hours of battery life on NiMH cells, it'll outlast your longest rehearsals and back-to-back sets without so much as a nervous glance at the battery indicator.
For performers, integrators, and venue owners who want pro-level IEM monitoring that earns its rack space, the ATW-3255 is the answer.
Audio-Technica ATW-3255 Features:
Wireless in-ear monitor system with high-quality audio and stable RF performance
Wide UHF tuning bandwidth of 138 MHz; available in frequency band DF2 (470–608 MHz)
Optimized internal DSP for exceptional stereo separation and signal clarity
Transmitter features balanced XLR inputs, loop output, and network port
OLED displays on both transmitter and receiver for clear readout of settings and alerts
Body-pack receiver operates up to 7 hours continuously on NiMH batteries
Compatible with ATW-CHG3 and ATW-CHG3N charging stations (sold separately)
Stereo or mono operation with pan and personal mix controls
Custom audio settings including EQ, limiter, gain control, and balance
Includes ATH-E40 professional in-ear monitor headphones with dual phase push-pull drivers
Network monitoring and control via Audio-Technica Wireless Manager software
Shares design elements with 3000 Series UHF Wireless Systems for easy integration
Warranty: 1 Year; 2 Years on Headphones & In Ear Monitors; 5 Years on 40 Series, Artist Elite, Broadcast & Production, Midnight Blues Series; Lifetime on ATR & Premium Cable
Audio Technica ATW-3255 Wireless IEM System Specifications
Audio Technica ATW-3255 Wireless IEM System Specifications
Product Specifications
Audio Technica ATW-3255 Wireless In-Ear Monitor System Specifications
Operating Frequencies Band: DF2: 470.125 to 607.875 MHz
Maximum Input Level: XLR-F type: +24 dBu (at 0 dB sensitivity)
Output Connection: 2x 6.3 mm / 1/4" TRS
(Tip: Hot, Ring: Cold, Sleeve: Ground)
Network: 100BASE-T
Network Port: RJ-45
Power Supply: 100V to 240V AC (50/60 Hz) to 12V DC 1 A (center positive) switched mode external power supply
Antenna Output: BNC-type, 50 ohms
Dimensions (W x D x H): 210 x 191 x 43.4 mm / 8.3" x 7.5" x 1.7"
Weight (Without Accessories): 1,100 g / 39 oz
Included Accessories:
AC adapter
Rackmount (large, small)
Flexible UHF antenna
*1 May differ depending on the country or region in which you live.
ATW-R3250:
Receiving System*1: Antenna diversity
Image Rejection: >80 dB, typical
RF Sensitivity: 20 dBuV at 60 dBA S/N ratio (50 ohms termination)
Headphone Output Jack: 3.5 mm / 1/8" TRS stereo mini-jack
Headphone Output: 40 mW (at 12 ohms)
EQ:
Low: 80 Hz / 160 Hz / 320 Hz / ±9 dB in 3 dB step
High: 6 kHz / 8 kHz / 10 kHz / ±9 dB in 3 dB step
Limiter: Selectable: -30 dB to OFF (0 dB) in 6 dB steps
Antenna Input: SMA type, 50 ohms
Batteries: 3V DC (two 1.5V AA) (not included)
Operating Temperature Range*2: -5°C to +45°C / 23°F to 113°F
Battery Life*3:
4 to 6 hours (alkaline)
5 to 7 hours (Ni-MH, 1900 mAh)
11 to 13 hours (Lithium)
Dimensions (W x D x H): 64 x 23 x 72 mm / 2.5" x 0.91" x 3.2"
Weight (Without Batteries): 102 g / 3.6 oz
Included Accessories: ATH-E40
Additional Info:
*1 Audio output cable performs as a secondary antenna to ensure stable RF performance.
*2 Battery performance may be reduced at very low temperatures.
*3 Depending on battery type, usage, volume level and environmental conditions.
For product improvement, the product is subject to modification without notice
Frequently Asked Questions
The ATW-3255 operates in the DF2 frequency band (470–608 MHz) with a wide 138 MHz UHF tuning bandwidth. This gives you plenty of clean frequencies to work with, even in congested RF environments like large venues or urban settings.
When powered by NiMH batteries and charged in the ATW-CHG3 or ATW-CHG3N charging station (sold separately), the body-pack receiver provides up to 7 hours of continuous operation. That's plenty of runtime for full-day events, services, or multi-set performances.
Yes, the ATW-3255 shares design elements with the 3000 Series UHF Wireless Microphone Systems, making it easy to integrate into an existing Audio-Technica setup. It's even compatible with the same charging stations used by 3000 Series body-pack transmitters.
Absolutely. The system supports network monitoring and control via Audio-Technica's Wireless Manager software, allowing you to manage settings and deploy channel plans across all connected transmitters remotely. A single RF scan from one receiver is all it takes to set up an interference-free channel plan across the entire network.
The system comes with Audio-Technica's ATH-E40 professional in-ear monitor headphones, which feature proprietary dual phase push-pull drivers for high accuracy and clarity. They're a solid set of IEM headphones straight out of the box, though the system also works with third-party in-ear monitors if you have a preferred pair.
