TOA EV-20R Sound Repeater
Product Overview
The EV-20R is a convenient addition to sites where the same message or music is repeatedly broadcast. Up to 4 types of music and messages (6 minutes total time) can be recorded and played back. The USB port facilitates recording by transferring the supplied sound sources from a PC to the unit. The unit's small built-in amplifier enables small-scale broadcasts through a simple speaker connection.
Features
- Dedicated file management software is supplied with the product.
- Audio file library is available on the supplied CD-ROM.
- Customized WAV files can be uploaded.
- Direct recordings can be done by front panel operation.
- Instant playback by front switch operation.
- Dry contact inputs are available to play and stop audio files by external devices such as sensors, program timers or manual switches
- Repeat audio files as set by the built-in interval TIMER.
- Up to 4 different messages can be stored in a built-in flash memory and played back.
- The maximum total recording time for the 4 messages is 6 minutes.
- Recorded data is not compressed, ensuring high quality sound output.
- Automatic Gain Control (AGC) can make recording audio levels uniform.
- An incorporated 3 W/ 8 Ω power amplifier allows direct connection with a low-impedance speaker.
- A USB interface permits audio data to be transferred from a PC with software.
- Live broadcasts can be made without recording by using a microphone or an audio player.
Specifications
- Power Source
- Supplied from an external 24 V DC/400 mA power supply or from an optional AD-246 AC adapter or its equivalent
- Power Consumption
- 10 W (rated output)
- Wave Format
- 44.1 kHz sampling frequency, 16-bit PCM (monaural)
- Frequency Response
- 20 Hz - 20 kHz ±3 dB (1 kHz) 50 Hz -14 kHz ±3 dB (IT-450 mounted, 1 kHz)
- Distortion
- 1% or less (1 kHz, rated output)
- Recording System
- USB data transfer or analog recording
- Control Input
- Play 1 - 4, stop: No-voltage make contact input, pulse make length: 200 ms, open voltage: 30 V DC, short-circuit current: 10 mA, removable terminal block (22 pins)
- Control Output
- Busy: Contact capacity: 30 V DC/0.5 A, removable terminal block (22 pins)
- Input
- Input/Recording input: Mic: –60 dB(*1), 2.2 kΩ / Line: -20 dB(*1), 10 kΩ, (Mic/Line changeable), unbalanced, phone jack Line input: 0 dB(*1), 10 kΩ, unbalanced, removable terminal block (22 pins)
- Output
- Line output: 0 dB(*1), 600 Ω, unbalanced, removable terminal block (22 pins) Headphone output: 0 dB(*1), 100 Ω, unbalanced, phone jack Speaker output: 3 W, 8 Ω, removable terminal block (22 pins)
- Maximum Number of Messages
- 4 Pre-recorded audio data: Message 1. Westminster chime (*2) Message 2, Ascending 4-tone chime(*2) Message 3, Descending 4-tone chime(*2) Message 4, None Note: The above audio sources can be overwritten by using the supplied software.
- Maximum Recording Time
- 6 minutes
- Message Delay Time
- 0, 2 s, or 4 s (selectable)
- Playback Interval Time
- ∞, 0, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 30 min, or 1 h (selectable)
- LED Indicator
- POWER, USB, START/STOP 1 - 4
- Operating Humidity
- 90 %RH or less (no condensation)
- Finish
- Case: ABS resin, black
- Dimensions
- 210 (W) x 44.2 (H) x 181 (D) mm (excluding projection)
- Weight
- 730 g
- Included Accessories
- CD-ROM (USB data transfer software and sample chimes recorded) x 1, Unbalanced-phone plug x 1, USB cable (1 m) x 1, Removable terminal plug (22 pins) x 1, Rubber foot x 4
- Optional Accessories
- Rack mounting bracket: MB-WT3 (for rack mounting one EV-20R unit), MB-WT4 (for rack mounting two EV-20R units) AC adapter: AD-246



