Williams Sound FM 558-12 PRO D Large-Area Dual FM and Wi-Fi Assistive Listening Dante System; Includes: FM T55 D Transmitter, (12)

Williams AV FM 558-12 PRO D Large-Area Dual FM and Wi-Fi Assistive Listening Dante System; Includes: FM T55 D Transmitter, (12) PPA R38N Receivers, (12) EAR 022 Earphones, (3) NKL 001 Neckloops

• Includes: (1) FM T55 D Transmitter, (12) PPA R38N Receivers, (12) EAR 022 Surround Earphones, (3) NKL 001 Neckloops, (1) CHG 3512 12-bay Chargers, (12) BAT 026-2 AA NiMH Rechargeable Batteries, (1) ANT 005 Remote Coaxial Antenna, (1) IDP 008 ADA Wall Plaque and (1) RPK 005 Rack Panel Kit

SPECIFICATIONS

• Operating Frequencies: 72.1-75.9MHz, 17 wideband channels (selectable)
• Frequency Accuracy: ± 2ppm stability, 0-50°C
• Deviation: ± 75kHz
• Pre-Emphasis: 75 microsec
• Transmission Range: Up to 1000ft (304m)
• Frequency Response: 31-16000Hz
• Signal-to-Noise Ratio: 67dB Transmited RF
• Total Harmonic Distortion: Less than 0.25% @ 1kHz (RF output)
• Common Mode Rejection: Greater than 57dB @ 1kHz, Mic or Line
• Headphone Output: 1/4" TRS stereo jack
• Weight: 3.2 lbs

• Channels: 17 Wideband, accessed via menu
• FM?Deviation: 75kHz
• De-Emphasis: 75µS
• Display Screen: 1" OLED
• Sensitivity: 2µV at 12dB Sinad with squelch defeated
• Input Overload: 100mV
• Frequency Response: 200Hz–15kHz, ±3dB
• Modulation: FM, +/- 75kHz peak deviation
• Signal-to-Noise Ratio: 65dB @ 1.0V
• Receive Antenna: Integral with earphone/headphone cord
• Audio Output: 35mW at 16?
• Weight: 4.6oz

• Plug: 3.5mm
• Driver Size: 23mm
• Nominal Impedance: 32?
• Freq. Response: 20-20kHz
• Max Power Input: 30mW
• Sensitivity: 118dB @ 1kHz
• Weight: 15g