Williams AV OA-50 Ovation 50W Classroom Audio Mixer Amplifier with DECT Wireless Receiver

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Williams AV OA-50 Ovation 50W Classroom Audio Mixer Amplifier with DECT Wireless Receiver

Description

Details

Williams AV OA-50 Ovation 50W Classroom Audio Mixer Amplifier

The OA-50 is an all-in-one classroom audio mixer amplifier designed to deliver clear, intelligible sound for both in-person and hybrid learning environments. Combining a DECT wireless microphone receiver, multi-channel audio mixer, and a 50-watt Class D amplifier, it provides consistent audio coverage for up to four speakers. Built as the central hub for modern classrooms, it ensures that every voice is heard with clarity and precision.

Engineered for seamless hybrid instruction, the OA-50 features Video Conference Sync with EchoGuard technology, which eliminates audio feedback loops and prevents remote voices from being re-amplified in the classroom. Its interference-resistant DECT wireless system ensures stable performance, while integrated features such as Digital Feedback Guard and Anti-Hum filtering deliver clean, noise-free audio for multimedia content and presentations.

Designed for flexibility and safety, the OA-50 offers four line-level inputs for easy AV integration with laptops, displays, and media devices. It also supports assistive listening systems, paging, and fire alarm muting, ensuring critical communication is always heard. With simple setup, reliable wireless connectivity, and support for Ovation pendant and handheld microphones, the OA-50 is a powerful and versatile solution for today's technology-driven learning environments.

Features

Features

50W Class D classroom audio mixer amplifier
Integrated DECT wireless microphone receiver for stable, interference-free audio
Supports up to four speakers for full classroom coverage
Video Conference Sync with EchoGuard eliminates feedback in hybrid learning
Multi-channel audio mixer with four line-level AV inputs
Anti-Hum filtering removes ground loop noise from connected devices
Digital Feedback Guard reduces in-room audio feedback
Supports assistive listening systems, paging, and fire alarm muting
Compatible with Ovation wireless pendant and handheld microphones
Ideal for classrooms, lecture halls, and training environments

Specification

Receiver Input	DECT 6.0 Radio, 2 mic channels
Reception Frequencies	1.92-1.93 GHz
Frequency Planning	Automatic, 60 talk channels
Coverage Area	Up to 2,000 sq ft (185 sq m)
Amplifier Power	50W RMS at 4Ω (2 x 24.5W)
Total Harmonic Distortion	<0.1% at 1 kHz
Frequency Response	15 Hz - 22 kHz (±3 dB)
Line Level Inputs	4 x 3.5 mm
Equalization	5-band, ±10 dB
Signal-to-Noise Ratio	70 dB
Wired Mic Input	1 aux input, switchable to dynamic mic
Line Outputs	3.5 mm (conferencing front, ALS rear)
Page Input	2-pin Phoenix, 4V/25V/70V
Power Supply	19 VDC/3.5A (CE, CSA, UL Listed)
Dimensions (H x W x D)	1.75" (44.45 mm) x 8.5" (215.9 mm) x 7.5" (190.5 mm)
Weight	1.75 lbs (0.79 kg)

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