VA-6100MS 8 Channel Changeover

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Descriptions:

VA-6100MS changeover integrates the main and standby power amplifier conversion functions, ground detection, open circuit detection, and short circuit detection of the speaker circuit. It is also compatible with three-wire and four-wire volume controller wiring. It does not require additional wiring and power supply, and has 8-channel programmable dry or wet node trigger inputs and 8-channel programmable online output signals. The controller can be combined with Class D digital amplifiers and traditional analog amplifiers to build a user audio amplification system, providing a safe, stable, and economical solution for the system.

Features:

* It adopts 2U chassis with highly integrated and modular design.

* Supports real-time detection of speaker loop grounding, open circuit and short circuit, and automatic protection of the amplifier in case of short circuit fault.

* Supports 3/4-wire speaker loop wiring, fire alarm broadcasting, audio control and forced cutting, and maximum volume output.

* It has 8 programmable trigger input online interfaces, which can trigger the pre-programmed voice messages to the specified partitions.

* It has 8 programmable trigger output online interfaces, which can output short-circuit voltage-free relay control signals to third-party equipment to achieve online automatic control.

* Supports the amplifier to enter power saving mode when there is no signal input to save energy.

* Supports connection with linkage fire alarm controller to realize fire alarm linkage control.

* Provides a DC 24V backup power input interface (24V DC power provided by an external DC power charger) to realize main and backup power supply.

Specifications:

AC power input voltage	~ 220V ± 15 % , 50-60Hz
AC power input current	＜ 1 A ( including 4-wire forced output )
DC power input voltage	DC24V , 19-30V adaptive
DC power input current	＜ 6.25 A
Maximum power consumption	150W
Number of output partitions	Up to 8
Output voltage	100V
Output type	Transformer-less bridge-tied output
Output power	500W ( maximum output of a single zone )
Maximum output power	8×500W
Strong cutting type	3-wire and 4-wire
4-wire forced output voltage	24V
Amplifier status detection time	＜ 1 S
Partition detection status	Short circuit, open circuit, short circuit to ground
Partition detection time	＜ 1 S
Line input number	8-way
Line input sensitivity	± 385mV (balanced)
Line input impedance	20KΩ
8-channel relay programmable output	Short circuit, no voltage
8-channel programmable trigger inputs	Short-circuit input, short-circuit input with detection, voltage input
Short circuit mode	3.3V voltage, short contact trigger, no linkage line monitoring function
Short-circuit mode with detection	3.3V voltage, short contact trigger, support linkage line fault alarm
Cooling method	Air-cooled
Dimensions (L x D x H)	484×4 65.1 × 100.5 mm
Weight	About 7.3kg

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