It is often useful to install amplifier monitor panel at rack for listening to the output of each amplifier and also to be used as a tool for sound output level calibration. This shall facilitate the inspection on amplifier's condition. AM6000 is used to monitor outputs of 70 / 100V line PA amplifiers which has level meter, amplifier output LEDs and speaker for audio monitoring.
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For a standby unit to take over a failed duty unit, a changeover panel is required to perform the task, either manually or automatically. AX700 is a 6 duty / 1 standby amplifier changeover panel meant for amplifier with auto fault sensor (AFS) circuitry which has dry contact to activate a changeover when failure is detected. For amplifiers without built in AFS, external sensing module such as Amperes AS4000 should be installed to perform failure detection task. Other fault detection cards or modules can be used with AX700 provided they have a dry contact port. It is compatible with most amplifiers and has protection features such as overload protection, which only allow a single take over a failed duty unit. The priority feature shall identify unit with higher number to be given preference for take over. More than one unit of AX700 can be cascaded where only 1 standby unit is assigned to serve more than 6 duty amplifiers.
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Three variants of 5, 6 and 8 inches are available in off white colour, complete with back enclosure, matching transformer of 3 tappings and wire mesh grille. Apart from its appealing outlook and good sound performance for PA, it is also installer friendly, in which mounting is made easy through its clamp and twist installation method. No screw is required for installation and it is simple to do any replacement or servicing.
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Amperes PA 2000 series of booster amplifiers are available in 120W, 240W and 360W with 4 Ohm and 70 or 100V line outputs. PA2120 is of 2 hu height whereas PA2240 and PA2360 are 3 hu. Amperes AS4000 amplifier surveillance module can be used alongside with these amplifiers to form an auto amplifier monitoring system. Setting up stacks of power amplifiers with AS4000s to Amperes AX700 shall then form an automatic amplifier monitoring and changeover configuration. Customised mimic panel can also be installed for monitoring purposes.
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PM1000 is used for direct paging without zone selection, or installed near rack in which zone selection is done via the rack mounted zone selectors. It has a dry contact point which is closed upon activation of the mic which can be used to trigger ALL CALL at the zone selector. PM1000 powered by 12V DC adaptor (supplied in package).
PM1060 / 1120 has zone selction feature with 6 and 12 zone respectively. They are suitable for small scale installation which requires remote zone selection for paging.
The PM1000 series has been upgraded which include a switch for output level selection. Ie. Mic or line level. Customised chime programming is available upon request in which the user can have unique chime tone for their particular premises.
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Amperes VC7000 series volume controller with its contemporary design are suitable for speaker volume attenuation of 70/100V line amplifier outputs. Various models of different ratings are available for different loading needs.
They are available in two versions, ABS front facial with two part installations and Aluminum front panel with the size of 70 x 120 mm.
4 wire system is available as standard version with overriding LED indicator. 3 wire system attenuators can be made to special order.
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ZS5602 is used when an uninterrupted paging setup is required. ie : when an announcement is made at a certain zone, other non paging zone shall not be interrupted, which would continue to listen to the broadcasted program.
Setting up such a configuration in a conventional system shall require two sets of amplifiers ; one being dedicated to Paging and the other to BGM. Other method shall be by assigning each zone to an amplifier, which may be costly. Matrix system shall not require this type of zone selector to achieve the purpose.
Similar to ZS5601 or ZS5121, it can be remotely triggered by remote paging console or zone selection decoder unit.
Each zone shall has individual input and output connections. thereby DUAL INPUTS making it rather flexible for amp-zone configuration.
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