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You Pay: $1,082.00
The PPA 457-00 Personal PA FM Assistive Listening System from Williams Sound includes the PPA T45 transmitter which features multiple digital audio input options and an OLED display with easy-to-manage menu navigation. It contains three microprocessors and is designed for high-quality audio and RF performance. With an operating range of up to 1000 feet, the PPA 457-00 is suitable for large venues. The system is expandable, accommodating any number of listeners. It also complies with 2010 ADA guidelines for hearing assistance.
This system consists of one PPA T45 transmitter, four PPA R37 receivers, one ANT 025 whip antenna, a TFP 048 power supply, a WLC 004 U.S. main power cord, one WCA 013 audio cable, four sets of BAT 001-2 AA alkaline batteries, and an IDP 008 ADA wall plaque.
Note: This system is approved by the FCC for operation in U.S. markets. The system cannot be used in all countries. Check with your government radio regulations for 72-76 MHz operation.
The Williams Sound PPA T45 transmitter offers multiple digital audio input options, and an OLED high-resolution screen with simple menu navigation. It features 3 microprocessors and high-quality audio and RF performance, designed to take the guesswork out of complex audio installations. Simply select among voice, music, or hearing assistance in the application preset menu, and this transmitter quickly configures itself. With a range of up to 1000 feet, the PPA T45 is ideal for large venues where superior coverage is essential.
The PPA R37 Select Channel FM Receiver with Earphone from Williams Sound is a compact and easy-to-use beltpack receiver that allows you to listen to an FM signal in the 72-76MHz band. The receiver offers seek button channel selection between 17 pre-set frequencies, which are digitally synthesized for terrific audio clarity and signal stability. It also features a channel lock capability to prevent accidental changes.
The receiver has an ergonomic design with a detachable belt clip, allowing you to slip it into your pocket or conveniently clip it to your clothing. The standard-sized 3.5mm headphone jack is compatible with mono and stereo headphones and earphones, and also supports induction neckloops and telecoil-equipped hearing aids. An EAR 013 single-ear earphone is included so you can listen right out of the box. The receiver operates on a pair of standard alkaline batteries, which are also included. A sleep mode helps to preserve battery life.
Note: This receiver requires a transmitter operating on a 72-76MHz band. Compatible Williams Sound transmitters: PPA T35, T27, T32, and T36. This receiver is approved by the FCC for operation in US Markets. The receiver cannot be used in all countries. Check with your government's radio regulations for 72-76MHz operation.
The Williams Sound ANT025 is a telescoping whip antenna intended for use with the T45 personal PA transmitter.
The TFP 048 Power Supply for PPA T45 and PPA T45Net from Williams Sound can be used as a power supply for Williams Sound PPA T45 and PPA T45NET. Please note, line cord not included.
The black 7.5' WLC 004 3-Pin US Main Power Cord from Williams Sound can be used with CHG 3512 3V 12 unit charger, CHG 3512 PRO 3V 12 unit charger with case, IC-2 interpreter control console, and WIR TX75 mid-range infrared transmitter.
The three foot WCA 013 RCA Audio Cable from Williams Sound is a standard RCA phono male to RCA phone male cable, designed to be used as an audio input cable for the company's PPA T27 and PPA T35 personal PA base station transmitters. The cable can also be used in any application that requires unbalanced audio connectivity using RCA connectors.
The IDP008 from Williams Sound is a self-adhesive wall plaque that alerts your patrons to the fact that your establishment has a hearing assistance system. Perfect for theaters, auditoriums, and more, the plaque is large and easy-to-see.
This Williams Sound AA Alkaline Battery 2-pack is compatible with several FM listening systems, receivers, transmitters, earphones, headphones, and more.
Rack Mount |
Standard 19" Rack, one EIA rack space high, 1/2 space wide 1-2 units can be mounted in a single rack space with optional RPK 005 (single) or RPK 006 (double) rack mount kits |
Power Supply |
Desktop-style transformer (TFP 048) Input: 100-240 VAC, 50/60 Hz, IEC line cord Output: 24 VDC, 750 mA, 18 W, 2.5 mm ID center positive barrel connector Approvals: UL, CUL, Energy Star V, CSA listed |
Indicators |
Power Indicators: Push On/Push Off latching power button, backlit Green indicates Power ON, back-lit off indicates power OFF Audio Level Indicators: 10-LED array that reads -18 to +9 dB at 3 dB intervals. 7 Green, 2 Amber, and 1 red LED. Green LEDS indicate normal operating audio level peaks, Amber LEDS indicate close to overload peaks, Red LED indicates overload peaks |
Temperature Range |
Operating: +32 to +104°F (0 to 40°C) Storage: -4 to +158°F (-20 to 70°C) |
Menu Options | Audio Presets (Music, Voice, Hearing Assist, Custom), Frequency/Channel selection, Frequency/Channel mode, Audio Input Source (Microphone, Line, Phantom, Digital AES/EB, Digital S/PDIF), High Pass Filter, Low Pass Filter, Compression, RF Output Power, Screen Saver Delay, Test Tone (400 Hz), Headphone Volume, Headphone Source |
Operating Frequencies | 72.1 to 75.9 MHz, 17 wideband channels (selectable) |
Frequency Accuracy | ±2 ppm stability, 32 to 122°F (0 to 50˚C) |
Deviation | ±75 kHz maximum |
Pre-Emphasis | 75 µsec |
RF |
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Antenna Type | Compatible Antennas: ANT 005, ANT 021, ANT 024, or ANT 025 |
Transmission Range | Up to 1000' (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector |
Audio Processing Functions | DSP, Compression: 1:1, 1.5:1 or 2:1, High Pass and Low Pass Filter Frequency control |
Frequency Response | 31 Hz to 16 kHz, ±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, balanced or unbalanced line level, or microphone with selectable phantom power 1x XLR for digital audio, AES3/EBU, supported sample rates 44.1 and 48 kHz 1x RCA for digital audio, S/PDIF, supported sample rates 44.1 and 48 kHz |
Gain Adjustment | In menu, adjustable to 0 to -50 dB, in 1 dB steps |
Phantom Power | 14.4 VDC applied 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 |
Input Level |
Microphone: -55 dBV (1.7 mV RMS), nominal (1st amber LED) -15 dBV (180 mV RMS), overload warning (displayed on screen) +20 dBV (10.0 V RMS), absolute maximum ratings Line: -25 dBV (55 mV RMS), nominal (1st amber LED) +16 dBV (6.3 V RMS), overload warning (displayed on screen) +20 dBV (10.0 V RMS), absolute maximum ratings |
Headphone Output | 1/4" TRS stereo jack, mono signal, 15.7 mW, maximum in 33 Ohms (level adjustable in menu 0 to -40 dB in 2 dB steps) |
Line Output | RCA jack (black), -10 dBV (.32 V RMS), output impedance 100 Ohms |
Ethernet | RJ-45 on back of unit (PPA T45NET only) |
Approvals | FCC, RoHS2, WEEE, Industry Canada |
Dimensions | 8.45 x 8.25 x 1.72" (21.5 x 21 x 4.4 cm) |
Weight | Transmitter: 3.0 lb (1.36 kg) |
Packaging Info | |
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Box Dimensions (LxWxH) | 12.756 x 10.551 x 3.543" |
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 |
Earphone | Earbud Type, Foam Cushion, 32 Ohm Impedance, Standard 3.5mm Plug |
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 (HxWxD) | 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) |
Packaging Info | |
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Box Dimensions (LxWxH) | 5.6 x 5.2 x 1.8" |
For Use with |
Transmitters: PPA T45 PPA T45NET PPA T27 |
FM Frequency Range | 72-76 MHz |
Connector Type | Screw to PCB |
Length | 39.0" / 99.1 cm |
Packaging Info | |
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Box Dimensions (LxWxH) | 11.0 x 2.5 x 0.1" |
Input | 100-240 V AC, 50/60 Hz, 0.5 A |
Output | 24 V DC, 0.75 A |
Packaging Info | |
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Box Dimensions (LxWxH) | 4.4 x 2.0 x 0.5" |
Compatibility | CHG 3512 3V 12 unit charger, CHG 3512 PRO 3V 12 unit charger with case, IC-2 interpreter control console, and WIR TX75 mid-range infrared transmitter |
Length | 7.5' (2.3 m) |
Thickness | 18/3 AWG |
Cord Type | 3-pin CN power cord with IEC connector |
Weight | 9.6 oz (272.2 g) |
Packaging Info | |
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Box Dimensions (LxWxH) | 5.5 x 5.5 x 0.875" |
Cable Type | Two-conductor RCA to RCA audio cable |
Length | 3' (0.9 m) |
Connector 1 | RCA phono male |
Connector 2 | RCA phono male |
Packaging Info | |
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Box Dimensions (LxWxH) | 3.1 x 2.5 x 0.4" |
Dimensions (WxH) | 6.5 x 10.5" (165 x 266 mm) |
Packaging Info | |
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Box Dimensions (LxWxH) | 7.3 x 4.3 x 0.1" |
Battery | |
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Battery Type | 2 x AA |
Battery Chemistry | Alkaline |
Battery Voltage | 1.2 V |
Packaging Info | |
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Box Dimensions (LxWxH) | 1.9 x 1.0 x 0.5" |