- Description
Details
The Williams Sound PPA 457 NET PRO Personal PA FM Assistive Listening System features three powerful microprocessors and the same high-quality audio and RF performance you’ve come to expect from Williams Sound. With an operating range of up to 1000 feet, the PPA 457 NET PRO is ideal for large venues where superior coverage is essential. This complete turnkey solution includes four PPA R37 receivers, each featuring seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. Includes a coaxial cable and rack panel kit for professional installation. The system is expandable, accommodating any number of listeners. This system complies with 2010 ADA guidelines for hearing assistance and is covered by Lifetime PLUS Limited Warranty.
The cutting-edge PPA T45Net transmitter offers control or monitoring capability from any remote location, multiple digital audio input options, and an OLED high-resolution screen with easy-to-manage menu navigation. Features 3 powerful microprocessors and the same high-quality audio and RF performance you’ve come to expect from Williams Sound. It’s technology that takes the guesswork out of complex audio installation.- Features
Features
- T45NET professional transmitter
- Up to 1000’ operating range
- OLED display, push-button menus
- Microprocessor controlled
- Accommodates any number of listeners
- Adjustable power output
- Combo XLR, 0.25” TRS inputs
- Meets ADAAG guidelines
- Lifetime PLUS Limited Warranty. 90 days on accessories.
- Made in the USA
- Specification
PPA T45NET Transmitter Color Black/Silver with black legends on the front, white legends on the back Rack Mount Standard 19” Rack, one EIA rack space high, 1/2 space wide1–2 units can be mounted Rack Mount In a single rack space with optional RPK 005 (single) or RPK 006 (double) Rack Mount Kits Power Supply Power Supply Desktop Style Transformer (TFP 048). Input 100-240 VAC, 50/60 Hz. IEC Line Cord Output 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector Approvals UL, CUL, Energy Star V, CSA listed Power ON Indicator Push On/Push Off latching power button, backlit Green indicates Power ON Power ON Indicator backlight off indicates power OFF Temperature Range:Operating +32° F to +104° F (0° C to 40° C) RF Section Operating Frequencies 72.1-75.9 MHz , 17 wideband channels (selectable) Frequency Accuracy ± 2 ppm stability, 0-50˚ C Deviation ± 75 kHz maximum Pre-Emphasis 75 µsec. RF Field Strength Does not exceed 80 mV/m at 3 m Compatible Antennas ANT 005, ANT 021, ANT 024, or ANT 025 Transmission Range Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector RF Timer Menu selectable - 30 Min, 4 Hours, or Always On. Timer starts when no audio is present RF Power Menu selectable - High, Medium, Low, OFF RF Outputs (1x) #10-32 stud connector in center of unit (pcb mounted)(1x) F-connector on rear chassis RF Transmit Indicator 1 Green LED, indicates RF “ON” Audio Section Audio Processor Functions DSP. Compression: 1:1, 1.5:1 or 2:1. High Pass and Low Pass Filter Frequency control Frequency Response 31 – 16000 Hz, ±3 dB (“Music” Audio Preset) Signal-to-Noise Ratio ≥74 dB Transmitted RF Total Harmonic Distortion Less than 0.25% @ 1 kHz (RF output) Common Mode Rejection >57 dB @ 1 kHz, Mic or Line Audio Inputs (1x) Combination 3-pin XLR, 1/4” TRS jack for Mic or Line Level Analog Audio. Audio Inputs Balanced or Unbalanced Line Level, or Microphone with Selectable Phantom Power Audio Inputs (1x) XLR for Digital Audio, AES3/EBU, supported sample rates 44.1 kHz and 48 kHz. Audio Inputs (1x) RCA for Digital Audio, S/PDIF, supported sample rates 44.1 kHz and 48 kHz Audio Input Gain Adjust In menu, adjustable to 0 to -50 dB, in 1dB steps Phantom Power 14.4 VDC applied through 2.2 kΩ resistors to analog combo jack: Pin 2 and Pin 3 on XLR jack, or Phantom Power Ring on 1/4” TRS jack Audio Level Indicators 10-LED array that reads -18 to +9 dB at 3 dB intervals. 7 Green, 2 Amber, and 1 red LED Audio Level Indicators Green LEDS indicate normal operating audio level peaks, Amber LEDS indicate close to overload peaks Audio Level Indicators Red LED indicates overload peaks Input Levels (Bal or Unbal):(at Audio Input Gain = 0dB) Nominal (1st Amber LED) Microphone: -55 dBV (1.7 mV RMS), Line:-25 dBV (55 mV RMS) Overload Warning(Displayed on Screen) Microphone: -15 dBV (180 mV RMS), Line: +16 dBV (6.3 V RMS) Absolute Maximum Ratings Microphone: +20dBV (10.0 V RMS), Line: +20 dBV (10.0 V RMS) Headphone Output 1/4” TRS stereo jack, mono signal, 15.7 mW, maximum in 33 Ω Line Output RCA jack (black), -10 dBV (.32 VRMS). Output impedance 100 Ω. Ethernet RJ-45 on back of unit (PPA T45NET only) Dimensions (H x W x D) 1.72” (43.69 mm) x 8.45” (214.63) x 8.25” (209.55) Weight 3.0 lbs (1.36 kg) (Transmitter) Shipping Weight 4.50 lbs (2.04 kg) (Transmitter, Power Supply, Antenna and packaging) PPA R37 Receivers Color Black Battery Type (2) AA Alkaline or 2 x AA NiMH Battery Life Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs Battery Life (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx. 32 hrs Current Consumption 52mA nominal Temperature Range – 0 to 50C Channels 17, accessed via seek button in battery compartment Operating Freq. 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 MHz Operating Freq. 75.7, 75.8, 75.9 MHz Intermediate Freq. 75 kHz FM Deviation 75 kHz De-Emphasis 75 µS LED Indicator Power: Green; Low Battery: Flashes Green AFC Range ± 120 kHz Sensitivity 2 µV at 12 dB Sinad with squelch defeated Input Overload 100 mV Frequency Response 200 – 15 kHz Modulation FM, +/- 75 kHz peak deviation Signal-to-Noise Ratio 65 dB min @ 100 uV Receive Antenna Integral with earphone/headphone cord Audio Output 35 mW max, peak into 16 ohms Output Connector 3.5 mm stereo/mono phone jack Earphone Earbud-type with foam cushion, 3.5 mm plug, 32 Ω Auto Shut-off Enters sleep mode after approx 6 mins of no RF signal Dimensions (H x W x D) 4.1" (104 mm) x 2.85" (72 mm) x 1.38 (35 mm) Weight 4.6oz (130g) with batteries. 2.6oz (73g) without batteries EAR 013 Single Mini Earbuds Plug 3.5 mm mono Cord length 39 inches Impedance 32 Ohms Frequency Range 20 - 20kHz Max input power 5mV Sensitivity 128dB @ 1kHz Driver size 13 mm Replacement earpad EAR 015 Weight 9g ANT 025 Whip Antenna Used with T27, T35, T45 Connector type Screw to PCB Cable type N/A Nominal Impedance N/A Length 39" WCA 013 Audio Cable Description Single RCA - RCA audio cable Used with T27, T35 audio input cable Connector type RCA - RCA Cable type Two-conductor Impedance N/A Length 3 ft - In The Box
In The Box
- (1) PPA T45NET Transmitter
- (4) PPA R37 Receivers
- (2) NKL 001 Neckloops
- (4) EAR 013 Single Mini Earbuds
- (1) ANT 025 Whip Antenna
- (1) TFP 048 Power Supply
- (1) WLC 004 Main Power Cord (U.S.)
- (1) WCA 013 RCA Audio Cable, 3ft.
- (4) BAT 001-2 AA Alkaline Batteries
- (1) IDP 008 Wall Plaque
- (1) ANT 005 Coaxial Antenna
- (1) RPK 005 Rack Panel Kit
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