Altair EM-201 Single Channel Wired Intercom Beltpack

Altair EM-201 Single Channel Wired Intercom Beltpack

The EM-201 is a robust, compact single channel wired intercom beltpack designed for intensive use in portable production applications — theatre, broadcast, live events and touring. Built to take the knocks of daily professional use while remaining comfortable and intuitive to operate.

The EM-201 is the beltpack at the heart of our TSS-2 Theatre Starter System — available as a complete ready-to-use kit for those new to wired intercom, or as an individual unit for expanding an existing system.

Buzzer — a feature unique to the EM-201

The EM-201 includes an audible buzzer for call signalling — a feature not found on wired beltpacks from other manufacturers. Combined with the visual call light, both can be switched on or off independently, giving the user full control over how they receive call alerts. Ideal for theatre environments where a discreet but reliable attention signal is essential.

Headset flexibility

Selectable dynamic or electret microphone input allows the EM-201 to work with a wide range of headsets. Compatible with our own intercom headsets, which offer considerable savings over equivalent headsets from other brands — making the EM-201 an excellent value choice for building or expanding a wired intercom system.

Comfortable, secure belt fit

A highly resistant plastic belt clip allows easy adjustment and comfortable all-day wear, even in demanding touring and rental environments.

Compatible with

• Altair PS-200 wired intercom power supply
• Altair EF-200 and EF-204 base stations
• Any standard party line intercom system
• Showcomms intercom headsets (recommended for best value)

Technical specifications

Preamplifier

• Microphone type: Dynamic or electret
• Input impedance: 4.7KΩ
• Nominal/max input level: −45dBu (H) / −20dBu (L)
• Presence filter: +6dB @ 4700Hz
• Phantom voltage: +9VDC (internal preset)

Headset amplifier

• Impedance: 200Ω nominal / 2KΩ maximum
• Maximum level (200Ω): 20Vpp
• Output power (200Ω): 250mW
• Frequency response: 250Hz–15kHz (±3dB)

Intercom line

• Impedance: 220Ω AC / 4700Ω DC
• Nominal level: −10dBu
• Maximum level: 3dBu
• Call threshold: 3VDC
• Remote mic kill: Power interruption 100ms
• Remote buzz kill: 100Hz / 800mVp

General

• Sidetone cancellation: Adjustable 0–30dB @ 1kHz
• Buzzer: 90dBA / 100dBA (internal preset)
• Power supply: 12–30VDC, 24VDC nominal
• DC current: 30mA
• Dimensions: 84×38×130mm
• Weight: 270g