Tăng âm chia vùng Toa VM-2120

Specification
Power Requirement	AC mains, 50/60 Hz DC: 24 V
Output	120 W
Frequency Response	50 - 16,000 Hzâm thanh thông báo
Distortion	Less than 1%
Signal-to-Noise Ratio	More than 60 dBâm thanh thông báo
Tone Control	Bass: 100 Hz ±10 dB, Treble: 10 kHz ±10 dB (Inputs 1 - 3 and BGM individually adjustable.)
Remote Microphone/Extension Amplifier Connection	Two RJ45 female connectors Maximum distance: 800 mâm thanh thông báo
Audio Input
Inputs 1 ~ 3	-60 dB1 [MIC]/-10 dB1 [LINE] (switchable), 600 Ω, electronically balanced2, combined XLR type connector (female)/ 1/4" phone jack (Only Input 1 is additionally (female)/ 1/4" phone jack (Only Input 1 is additionally equipped with DIN connector3.)
Telephone Paging Input	Push-in terminal block -10 dB1, 10 k Ω, electronically-balanced2 Control : No-voltage make contact input
BGM 1 - 2	-20 dB*1, 10 k Ω, RCA pin jack, monaural
Power Amplifier Input	0 dB*1, 10 k Ω, RCA pin jack
External Speaker Line Input	100 V line, for All-Zone Broadcastâm thanh thông báo
Audio Output
Speaker Output	83 Ω (100 V line, volume control in maximum position), Removable terminal block with screw terminals.
Speaker Zone Control	5-zone selector with attenuator
Direct Speaker Line Output	Direct output from the power amplifier output transformer
Line Output	0 dB*1, 10 k Ω, RCA pin jackâm thanh thông báo
Recording Output	0 dB*1, 10 k Ω, RCA pin jack
Preamplifier Output	0 dB*1, 10 k Ω, RCA pin jack
Control Inputs 1 - 3	For controlling Inputs 1 - 3, Push-in terminal block No-voltage make contact.
Control Input and Output	Control Input and Output Input : No-voltage make contact input Output : Open collector output (1) External control input Activation of messages for an optional Voice Announcement Board*4 Activation of power Activation and stop of Emergency Broadcast Unit's broadcast cutoff (when activated by an external emergency equipment) (2) Status output Irregularity of communications with the Remote Microphone and an expansion amplifier AC power condition DC power condition Irregularity of the sound source of the Voice Announcement board Stop of the unit's broadcast
External Attenuator Control Output	Removable terminal block with screw terminals, relay, no-voltage make contact output, transfer type
Surveillance Input and Output*5	25-pin female D-sub connector Input : No-voltage make contact input Output : Open collector output
Power Output	24 V DC
Chime Tone	Built-in chime: 2-tone chime/2-tone chime(fast repeat) 4-tone chime (Up)/Single-tone chime/4-tone chime (Up & Down)/Gong/off
Finish	Panel: ABS resin Case: Steel plate painted
Dimensions	419 (W) × 143.3 (H) × 356.2 (D) mm
Notes	1 0 dB = 1 V am thanh cong cong âm thanh công cộng he thong am thanh cong cong hệ thống âm thanh công cộng 2 Can be transformer-balanced with the addition of an optional IT-450 input transformer. 3 For connection of the Paging Microphone with remote control switch. 4 An optional EV-200 Voice Announcement Board is required. *5 An optional SV-200M Surveillance Board is required.