Electro-Voice R300-E/A - UHF Wireless System with HM3 Omnidirectional Headset Microphone (A-Band 618–634 MHz)

Electro-Voice R300-E/A - UHF Wireless System with HM3 Omnidirectional Headset Microphone (A-Band 618–634 MHz)

The Electro-Voice R300-E/A is a complete UHF wireless vocal system combining the R300 true diversity receiver with the BP-300 bodypack transmitter and HM3 omnidirectional headset microphone . Operating in the A-band (618–634 MHz) , it offers 32 channels per band (up to 8 simultaneous systems ) and quick setup features like ClearScan (automatic search for the cleanest channel) and EZsync (one-step infrared synchronization). The result is a reliable, easy-to-use solution for presentations, education, fitness, worship, theater, and corporate events.

The R300 receiver features balanced XLR and unbalanced 1/4" (6.35mm) jack outputs, RF/Audio and A/B diversity status indicators, and a metal chassis suitable for tabletop or rack mounting with optional RM-300 (single) or RMD-300 (dual) kits. The BP-300 is a metal bodypack with an LCD display , 8 mW typical RF power , and >14 h of battery life on 2 AA batteries. The lightweight, double-hook HM3 maintains consistent pickup even when moving; it connects via TA4F and is supplied with foam windscreens .

Main features

• Band A (618–634 MHz) with 32 channels and up to 8 simultaneous systems .
• R300 true diversity receiver by antenna, Audio 80 Hz–18 kHz ±2 dB , >100 dB S/N (A-weighted) , XLR and 6.35 mm jack outputs.
• ClearScan (one button) and EZsync (IR) for fast, error-free startup.
• BP-300 metal transmitter : 8 mW RF , >14 h with 2×AA, TA4F connector and LAV/INS gain selector.
• HM3 headworn microphone , omnidirectional , back-electret, 50 Hz–20 kHz , 10 mV/Pa, 200 Ω, 1 m cable with TA4F .
• Metal chassis for receiver and bodypack; optional RM-300/RMD-300 rack accessories.

Product benefits

• Setup in seconds : ClearScan finds the best channel and EZsync transfers the setting to the transmitter instantly.
• Stable, clean audio : True diversity and 80–18 kHz response for clear vocals in rooms and on stage.
• Hands-free comfort : HM3 dual-ear headband, lightweight and secure for extended wear.
• Long battery life : more than 14 hours with standard AA batteries to cover full days.
• Scalability : up to 8 simultaneous systems per band with proper coordination.

Use cases

• AV presentations, teaching and conferences with full mobility.
• Fitness, dance, and musical theater classes that require a firm grip.
• Places of worship and corporate events with multi-channel deployment.

Frequently Asked Questions

• What's included with the system? R300 receiver, BP-300 bodypack transmitter, HM3 headset microphone (with windscreen), receiver power supply, and basic system accessories.
• Is it compatible with other EV microphones with a TA4F connector? Yes, the BP-300 accepts EV/Telex lavaliers and headsets with a TA4F connector.
• Can I rack-mount it? Yes, with the optional RM-300 (1 receiver) or RMD-300 (2 receivers) kits in 1U of 19″.
• Can I use multiple systems simultaneously? Yes, up to 8 per band (depending on the RF environment and frequency planning).

Description for projects

UHF wireless voice system, A-band 618–634 MHz . R300 receiver (PLL, true diversity, 80 Hz–18 kHz ±2 dB , >100 dB S/N, XLR and 6.35 mm jack outputs). BP-300 transmitter (8 mW RF typ., 2×AA, >14 h, TA4F, LAV/INS switch). HM3 omnidirectional headset microphone (50 Hz–20 kHz, 10 mV/Pa, 200 Ω, 1 m cable, TA4F). 32 channels per band; ClearScan and EZsync ; metal chassis; optional RM-300/RMD-300 rack kits. Includes receiver, bodypack and HM3 microphone.