Tăng âm chia vùng TOA VM-2240

am thanh cong cong âm thanh công cộng he thong am thanh cong cong hệ thống âm thanh công cộng

System Management Amplifier 240 W

The VM-2240 is a multifunctional amplifier that can be mounted in an EIA-Standard equipment rack (3-unit size). The unit comes with 4 audio inputs including the background music input, and the speaker output section which has an internal attenuator and 5-zone selector. It permits not only general-purpose broadcast, but also Emergency Broadcast based on the EN 60849 Standard which gives pre-recorded voice instructions(*1) in the emergency situation. Broadcast can be made from an optional RM-200M Remote Microphone as well as from the amplifier, and can be remotely controlled from external equipment. In addition, for 100 V/83 Ω application the unit features the surveillance function(*2) which automatically checks the system for failures. (*1) An optional EV-200M Voice Announcement Board is required. (*2) An optional SV-200MA Surveillance Board is required.

Specification
Power Requirement	AC mains, 50/60 Hz DC: 24 V
Output	240 W
Frequency Response	50 - 16,000 Hz
Distortion	Less than 1%
Signal-to-Noise Ratio	More than 60 dB
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 m
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 Broadcast
Audio Output
Speaker Output	41 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 jack
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 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.