EJ-900AI

Infared Soundfield System

Description

Clear sound projection is essential to pupils’ learning. Students will perform well when they can hear every word clearly pronounced by teachers. A good Soundfield System can do more than that by delivering clear voice projection, offering better verbal recognition, and improving learning behavior – this is what EJ-900AI will provide. An additional benefit that IR technology will give is teachers can get rid of the setting of microphone from room to room.

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Features

Worldwide license free band
Max 45W output power
3-band EQ for AUX output
Inputs and controls for PC and AUX
4 extension for speakers
Voice override available in case of emergency

Specifications

Specifications	EJ-900AI
Output power	45W (max.) / 30 Watt (RMS) @ 4Ω
S/N ratio	>80 dB
Carrier frequency	2.3 - 2.8 MHz
Frequency response	20 Hz - 20 kHz.
Audio input	AUX, PC (RCA)
Audio output	AUX (RCA), with 3-band EQ (HF,MF,LF)
Receiver module	IR-502 × 1
Controls	Bass, Treble, Aux in, PC in, Aux out (HF, MF, LF)
Speaker connections	4 @ 4~8 Ω
Speaker balance controls	L & R out
Announcement	voice override
Announcement input switch	25 / 70 / 100 V @ 8 Ω
Power requirements	100 ~ 240 VAC / 18 VDC, 2.7 A switching power adaptor
Charge output	5 VDC, 1 A
Dimensions (D x W x H)	221.6 x 266 x 60 (mm)
Weight	1.9 kg