| Nady ALD-800 |
RF Hearing Assistance System
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| MSRP: |
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$439.95 |
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Price: |
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$399.95 |
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| Additional
Information |
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| Description |
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ALD-800
Nady ALD-800 is a cost-effective way to provide high quality listening assistance in compliance with the Americans with Disabilities Act (ADA), which requires public facilities such as movie theatres, etc. to make listening assistance systems available to their audiences. The system is designed to be very easy to use and requires no installation.
FEATURES:
- Wireless transmitter and pre-tuned portable wireless receivers.
- Unlike infrared listening systems, the ALD-800 can be used outdoors and indoors in bright light without affecting performance.
- Perfect for virtually any application, from a small meeting room, or a mid-sized house of worship, to a large cinema.
- Provides high quality hearing assistance to any number of audience members, without seating restrictions.
- Wireless operating range of 300 feet.
- Transmitter connects to the line out or tape out from a venue’s existing sound system, and broadcasts the audio as an FM
radio signal.
- Transmitter:
- Compact RF transmitter operates within the 72-76 MHz band designated for auditory assistance frequencies by the FCC.
- 8 factory switchable channels. Preset to one of the 8 channels.
- Input for line level audio.
- Input for microphone.
- Audio input gain control.
- Automatic level control.
- Extendible antenna.
- AC-ALD800 9VDC regulated power supply adapter supplied.
- LED power on and audio modulation indicators.
- Any number of ALD-800 receivers can be used with a single ALD-800T transmitter.
- Ultra compact and lightweight.
- Provides up to 130 dB SPL for hearing assistance.
- Volume control adjust.
- LED “power on” indicator.
- Transmitter can also be used with an optional microphone.
- 4 Receivers:
- Single channel units that operate on 1 of 8 channels in the 72-76 MHz band, with wide band modulation for quality audio.
- Receivers include mini binaural earphones providing up to 130 dB SPL for hearing assistance and feature a volume control adjust, "Power ON" LED, and antenna integral with earphone cord.
- Single standard 9V alkaline or rechargeable NiCad or NiMH battery operation.
- Ultra compact and lightweight.
- Operates on a single frequency in the 72-76 MHz auditory assistance band.
- Frequency stability is controlled by a phase locked loop synthesizer with crystal reference and is accurate within ±.005% over 0-50 degrees C.
- Receiver de-emphasis is 75 μS.
SPECIFICATIONS:
- Overall System Performance:
- Frequency Response: 100 Hz-15KHz ± 3 dB
- Signal to Noise Ratio: 60 dB
- Total Harmonic Distortion: < 0.5%
- RF Carrier Frequencies: 8 channels between 72-76 MHz. Channel AA:72.1, BB: 72.3, CC: 72.5, DD: 72.7,
EE: 72.9, FF:75.5, GG: 75.7, HH: 75.9
- Frequency Stability: Better than .005%
- Modulation: FM ± 75 KHz max
- Operating Range: Up to 300 feet line-of-sight
- Transmitter:
- Mic Input:
- Connector: 1/4" phone jack
- Impedance: Low impedance, unbalanced, with 9V DC at 1 mA for condenser mic
- Line Input:
- Connector: 1/4" phone jack
- Impedance: 100 K ohms,unbalanced
- Power Output: 80,000 μV @ 3 meters
- Controls: Power on/off, audio input gain adjust
- Indicators: Power On LED, Audio Modulation LED
- Antenna: Permanently mounted telescoping whip
- Power Requirement: 9 VDC, regulated at 200 mA, AC-ALD800 adapter provided
- Dimensions: 1.25" x 8.25" x 4.25"
- Weight: 1.5 lbs
- Receivers:
- Controls: Combination volume/on-off wheel
- Audio Output: 250 mW max into 16 ohms
- Connectors: 3.5 mm mini jack for earphone output
- Earphones: Mini binaural earbuds
- Antenna: Integral with earphone cord
- Indicators: LED power on indicator
- Sensitivity: 2 μV for 12 dB Sinad with squelch defeated. Squelches at 10 μV for min. 50 dB S-N ratio
- Mute Threshold: 8-10 μV
- Power Requirement: 9V alkaline
- Battery Life: 17-20 hours with alkaline battery
- Dimensions: 3.35” x 2.75” x .75”
- Weight: 2.65 oz. without battery
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