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Williams AV FM 558-24 PRO Rechargeable Assistive Listening System
Williams AV FM 558-24 PRO Assistive Listening System
$8,370.00

Williams AV FM 558-24 PRO Assistive Listening System

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SoundPro Item: 91379
MPN: FM 558-24 PRO
$8,370.00
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The FM 558 PRO system package is a complete turnkey solution that includes 4 PPA R38 receivers and an FM+ transmitter for both FM and Wi-Fi transmission from the same box. The PRO bundle includes a coax cable, and rack panel kit for professional installation.

This system features the cutting edge PPA T55 transmitter (replacing the T45 FM transmitter) with multiple digital audio input options and an OLED display with easy-to manage navigation, and network control features.

The FM R38 is a multi-channel FM receiver with a high-resolution OLED screen. The receiver comes with earphones and batteries, but is otherwise identical to the PPA R38. The R38 offers a quick view of receiver status and immediate entry to all user settings. On-screen channel selection with easy access to 17 pre-set, wide-band frequencies (72-76 MHz). The system is expandable, accommodating any number of listeners. This system complies with 2010 ADA guidelines for hearing assistance all for nearly the same cost as traditional FM systems.

Williams AV FM-558-24 PRO Features

  • Both FM and Wi-Fi transmission
  • Multiple digital audio input options on transmitter
  • Multi-channel FM receiver
  • OLED screen on transmitter and receiver
  • Receiver sceen displays receiver status and immediate entry to all user settings
  • On-screen channel selection on the receiver
  • System can be expanded to accommodate different numbers of listeners
  • FM T55 transmitter1
  • PPA R38N receivers24
  • EAR 022 surround earphones24
  • NKL 001 neckloops6
  • CHG 3512 12-bay chargers2
  • BAT 026-2 AA NiMH rechargeable batteries24
  • ANT 005 remote coaxial antenna1
  • IDP 008 ADA wall plaque1
  • RPK 005 rack panel kit1
  • Power supplyDesktop Style Transformer (TFP 062); Input: 100-240 VAC, 50/60 Hz. IEC Line Cord; Output: 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector
  • EthernetRJ-45 on back of unit supports CAT 5e cable lengths up to 328 feet (100 meters
  • Operating frequencies72.1-75.9 MHz , 17 wideband channels (selectable)
  • Deviation± 75 kHz max
  • Pre-emphasis75 microsec
  • RF field strengthdoes not exceed 80 mV/m at 3 m
  • Transmission rangeup to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector
  • RF outputs(1x) #10-32 stud connector in center of unit (pcb mounted); (1x) F-connector on rear chassis
  • Audio processor functionsDSP based; Compression: 1:1, 1.5:1 or 2:1; High-pass and Low-pass Filter Frequency control
  • Frequency response31-16000 Hz, ±3 dB (re: 1 kHz, ±3 dB) (“Music” Audio Preset)
  • Signal to noise ratio67 dB (typical) Transmited RF
  • THDless than 0.25% @ 1 kHz (RF output)
  • Audio inputs(1x) Combination 3-pin XLR, 1/4″ (TRS) jack for balanced or unbalanced line level, or balanced or unbalanced microphone with selectable phantom power
  • Headphone output1/4″ TRS stereo jack, mono signal, 14.85 mW at +9dB, maximum in 33 Ω (level adjustable in menu 0 to -40 dB in 2 dB steps)
  • Line outputRCA jack (black), -10 dBV (.32 VRMS); Output impedance 100 ohms at +9dB
  • Rack mountStandard 19” Rack, one EIA rack space high, 1/2 space wide
  • PPA R38N receiver
    • Current consumption: 52mA nominal
    • Channels: 17 Wideband, accessed via menu
    • Operating frequencies: 72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, 75.9 MHz
    • FM deviation: 75 kHz
    • De-emphasis: 75 µS
    • Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
    • Input overload: 100 mV
    • Frequency response: 200 Hz – 15 kHz, ±3dB
    • Modulation: FM, +/- 75 kHz peak deviation
    • Signal to noise ratio: minimum 65 dB @ 1.0V
    • Audio output: 35 mW max at 16 Ω
    • Battery type: 2 AA
  • ANT 005 remote coaxial antenna
    • Connector type: F-connector
    • Cable type: RG 59 coax
    • Total cable length: 22 ft
    • Active antenna length: 80"
  • CHG 3512 12-bay charger
    • Power supply: TFP 037 Switching AC adapter, 5 VDC - 4A output
    • Power supply input: 90 - 240 VAC input
    • Charging time: 16 hours nominal
    • Unit capacity: 12 units
  • EAR 022 surround earphone
    • Plug: 3.5mm mono
    • Cord: 39"
    • Frequency response: 20 - 20kHz
    • Sensitivity: 118dB @1kHz
  • NKL001 neckloop
    • Length: 18.5" cord
    • Connector: 3.5mm mono plug
    • Input power: 500 mW max

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