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Description
Williams AV FM 557 PRO FM+ PRO FM & Wi-Fi Assistive Listening System (4 Receivers)The FM 557 PRO system package is a complete turnkey solution. It includes 4 PPA R37N 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
The FM 557 PRO system package is a complete turnkey solution. It includes 4 PPA R37N 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.
Each PPA R37N receiver features a seek button channel selection with access to 17 selectable wideband frequencies between 72.1-75.9MHz. 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.
Specifications
Williams Sound FM+ Assistive Listening System Specs
| Display | 3.1" / 7.9 cm OLED |
| Ethernet | 1 x RJ45, 10/100 Base-T IEEE 802.3 Compliant |
| Operating Frequency | 72.1 to 75.9 MHz (17 Wideband Channels) |
| Frequency Accuracy | ±2 ppm Stability, 32 to 122°F / 0 to 50°C |
| Deviation | ±75 kHz Maximum |
| Pre-Emphasis | 75 μs |
| RF Field Strength | ≤80 mV/m at 9.8' / 3 m |
| Transmission Range | Up to 1000' / 305 m with Optional ANT 005 Antenna on Rear Chassis Connector |
| RF Outputs | 1 x #10-32 Stud Connector (Center) 1 x F-Connector (Rear) |
| RF Indicator | Green LED On Air Indicator |
| RF Time Out (Sleep Mode) | Duration: 30 Minutes / 4 Hours / Always On |
| Audio Processor | DSP Based Compression: 1:1, 1.5:1, 2:1; High-Pass / Low-Pass Filter Frequency Control |
| Audio Frequency Response | 31-16,000 Hz, ±3 dB (Re: 1 kHz, ±3 dB) |
| Signal-to-Noise Ratio | 67 dB (Typical) Transmitted RF |
| Total Harmonic Distortion | <0.25% at 1 kHz (RF Output) |
| Common Mode Rejection | >57 dB at 1 kHz, Mic or Line |
| Audio Inputs | 1 x Combination 3-Pin XLR / 1/4" (TRS) for Balanced/Unbalanced Line Level, or Balanced/Unbalanced Microphone with Selectable Phantom Power |
| Audio Input Gain | 0 to -50 dB, in 1 dB Steps |
| Phantom Power | 14.4 VDC Through 2.2 kOhms Resistors to Analog Combo Jack: Pin 2 and Pin 3 on XLR Jack, or Tip and Ring on 1/4" TRS Jack |
| Headphone Output | 1/4" TRS Stereo Jack, Mono Signal, 14.85 mW at +9 dB, Maximum in 33 Ohms (0 to -40 dB Menu Adjustment in 2 dB Steps) |
| Line Output | RCA Jack, -10 dBV (.32 VRMS) Output Impedance: 100 Ohms at 9 dB |
| Microphone | -55 dBV (1.7 mV RMS) 22 dBV (80 mV RMS) +20 dBV (10.0 V RMS) |
| Line | -25 dBV (55 mV RMS) +16 dBV (6.3 V RMS) +20 dBV (10.0 V RMS) |
| Approvals | FCC, RoHS3, WEEE, Industry Canada |
| Power | Input: 100-240 VAC, 50/60 Hz Output: 24 VDC, 750 mA, 18 W |
| Rack Size | 19" Standard One EIA Rack Space High 1/2 Space Wide |
| Operating Temperature | 32 to 122°F / 0 to 50°C |
| Storage Temperature | -4 to 158°F / -20 to 70°C |
| Dimensions | 8.47 x 8.27 x 1.73" / 21.5 x 21 x 4.4 cm |
| Weight | Transmitter: 3.2 lb / 1.45 kg |
Williams Sound PPA R37 N Select Channel FM Receiver (No Earphone/Batteries) Specs
| Channels | 17, Accessed via Seek Button in Battery Compartment |
| Operating Frequency | 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, 75.9MHz 75kHz Intermediate Frequency |
| Deviation | 75kHz |
| De-Emphasis | 75µS |
| Range | AFC Range: ±120kHz |
| Sensitivity | 2µV @ 12dB Sinad with Quelch Defeated |
| Max Input Signal | 100mV |
| Frequency Response | 200Hz - 15kHz |
| Modulation | FM, ±75kHz Peak Deviation |
| Signal to Noise Ratio | 65dB Min @ 100µV |
| Output Level | 35mW Max, Peak into 16 Ohms |
| Connectors | 3.5mm Stereo/Mono Headphone Jack |
| Antenna | Uses Earphone/Headphone Cord as Antenna |
| Battery | 2 x AA Alkaline or NiMH Up to 50 Hours Life with Alkaline, Up to 32 Hours with Rechargeable NiMH Enters Sleep Mode After 6 mins with no RF Signal |
| Current Consumption | 52mA, Nominal |
| Indicators | Green Power LED (Flashes for Low Battery) |
| Temperature Range | 32 to 122°F (0 to 50°C) |
| Approvals | FCC, Industry Canada, RoHS, WEEE |
| Finish | Black |
| Dimensions | 4.1 x 2.85 x 1.38" (104 x 72 x 35mm) |
| Weight | 4.6 oz (130g) (With Batteries) 2.6 oz (73g) (Without Batteries) |
Williams Sound EAR 022 Surround Earphone Specs
| Style | Around-ear speaker |
| Plug | 1/8" / 3.5 mm mono |
| Driver Size | 0.9" / 23.0 mm |
| Nominal Impedance | 32 Ohms |
| Frequency Response | 20 Hz to 20 kHz |
| Power Input | 30 mW |
| Sensitivity | 118 dB @ 1 kHz |
| Cord Length | 39.0" / 99.1 cm |
| Weight | 0.5 oz / 15.0 g |
Williams Sound NKL 001 Induction Neckloop For T-Switch Hearing Aids Specs
| Magnetic Field Strength | 25 mW input at 1000 Hz produces 1.7 A/m 6" above the center of loop 85μW input produces 0.1 A/m (IEC Standard) |
| Input Power | 500 mW max |
| Impedance | 8 to 16 Ohms |
| Connector | 1/8" / 3.5 mm mono mini-plug |
| Cable Length | 18 / 457 mm |
| Color | Black |
| Approvals | RoHS, WEEE |
| Weight | 1.5 oz / 43 g |
Williams Sound CHG 3502 Dual-Bay Battery Charger & 4 AA Rechargeable Batteries For Select Bodypack Transmitters And Receivers (Black) Specs
| Compatible With |
PLR BP1 Loop receiver PPA T36 Personal FM Transmitter PPA T46 Transmitter PPA R38 Receiver PPA R35-8 Receiver PPA R37 Receiver WIR RX 22-4 Infrared Receiver Motiva PFM T36 Personal FM Transmitter Motiva PFM R36 Personal FM Receiver Motiva PFM R33 Personal FM Receiver |
| Charging Time | 16 Hours (Nominal) |
| Capacity | 2 Components |
| Indicators | 2 x Red LEDs (One for Each Bay); LEDs Are Lit When Charging |
| Enclosure | ABS Plastic |
| Power Supply | Input: 100 to 240 VAC, 50/60 Hz; 6 W, 0.5-0.3 A Output: 6 VDC, 250 mA |
| Power | Charger: Input: 6 VDC, 300 mA, Center Positive Output: 100 mA per Bay |
| Batteries | 4 x NiMH Batteries: 1.2 V, 1500 mAh |
| Approvals and Certifications | CE, FCC, RoHS |
| Dimensions | 4.9 x 3.9 x 2 / 12.4 cm x 9.8 cm x 5.1 cm |
| Weight | 1.12 lb / 0.51 kg |
Williams Sound ANT005 - Remote Coaxial Antenna For 72-76 MHz PPA Transmitters Specs
| For Use with | Transmitters: PPA T45 PPA T45NET PPA T27 |
| Connector Type | F-connector |
| Cable Type | RG 59 coax |
| Nominal Impedance | 75 Ohms |
| Total Cable Length | 22.0' / 6.7 m |
| Antenna Length | Active Antenna Length: 80.0" / 203.2 cm |
Williams Sound IDP008 - ADA Wall Plaque For Hearing Assistance Specs
| Dimensions | 6.5 x 10.5" (165 x 266 mm) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy