Headset Microphone Pre-Amp

Input Type: Dynamic

Impedance: 1k ohm

Input Level: -55 dBu nominal; -10 dBu max.

Panel Microphone Pre-Amp

Input Type: Electret

Input Level: -45 dBu nominal

Pre-Amp Response Curve

Frequency Response: 250Hz to 12kHz, contoured for intelligibility

Limiter Range: 20dB

Headphone Amplifier

Load Impedance Range: 50 ohm to 2k ohm

Output Level: at least +20 dBu across 600 ohm

Distortion: < 0.5% THD at 1kHz

Frequency Response: 200Hz to 15kHz, ±3dB

Power Output: 110dB SPL

Speaker Amplifier

Speaker Type: 2.5in round, 16 ohm

Power Output: 2W into 16 ohms

Frequency Response: 200Hz to 15kHz, ± 3dB

Signal-to-Noise: 75 dB

Distortion: < 0.5% THD at 1kHz

Speaker Level: 98dB SPL at 3 ft.

Program Amplifier

(Transformerless, balanced differential input)

Input Level: -20 dBu

Input Impedance: > 100k ohm

Frequency Response: 150Hz to 15kHz, ± 3dB

Power Requirements

Voltage: 30-VDC standard unit

Current: 100 mA average

Environmental

32° to 122°F (0° to 50°C)

Dimensions

4.5 X 8.25 X 1.75in (HxWxD)

(114 x 210 x 44mm)

Weight

1.34lbs (0.61kg)