User guide

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Clever Features, Contactor Friendly

AMIS250

250w Mixer Amplifier

Operating Manual

AMIS250, 250 Watt Mixer Amplifier

Product Description

The AMIS250 mixer amplifier is designed for commercial installations. It operates on 230 VAC, 50Hz and

may be desk or rack mounted (rack mount kit supplied). The AMIS250 delivers 250 watts into a load of 4

ohms, 70 or 100 volt line. As standard, the AMIS250 is supplied self standing with rubber feet. It features 6

microphone/line input channels as well as a host of unique features including multiple levels of muting and

24 VDC make the AMIS250 a very flexible amplifier.

Summary of content (7 pages)

PAGE 1
Clever Features, Contactor Friendly AMIS250 250w Mixer Amplifier Operating Manual AMIS250, 250 Watt Mixer Amplifier Product Description The AMIS250 mixer amplifier is designed for commercial installations. It operates on 230 VAC, 50Hz and may be desk or rack mounted (rack mount kit supplied). The AMIS250 delivers 250 watts into a load of 4 ohms, 70 or 100 volt line. As standard, the AMIS250 is supplied self standing with rubber feet.
PAGE 2
Front Panel Features Microphone/Line Level Controls The 6 dual mic/line input controls are labelled Ch 1 through to Ch 6 and should be adjusted to provide the required level mix for each individual channel. Start with the controls set to level 0 and turn the controls clockwise until the desired mix level for each channel is reached. Bass Control Setting this control in the centre position will give an overall flat bass response.
PAGE 3
Rear Panel Features AC Power Inlet The operating voltage is 230/240 VAC @ 50 Hz. The 3 pin IEC power inlet is located on the bottom left of the rear panel and accepts a standard mains power lead fitted with an IEC connector. Before plugging in a power lead, please check the rear panel of the amplifier to ensure that the voltage switch is set correctly for your part of the world. The inlet is equipped with an in-built AC fuse holder fitted with a 6.3 amp fuse plus a spare within the holder.
PAGE 4
Evacuation Tone Note: The minimum impedance (or maximum load) at 100 Volt line should be no less than 40 Ohms. Phantom Power This button enables or disables the 18 volts DC phantom power which is available on all microphone inputs (XLR’s). The “in” position indicates that phantom power is on for all mics. The “out” position means that phantom power is switched off for all mics. Phantom power is required for electret condenser microphones which require DC power to operate.
PAGE 5
Muting A VOX muting card is installed in the AMIS250. This feature provides automatic muting of some channels when others are active. It is normally used so that a paging microphone can have priority (by muting) over background music. VOX muting is available from channels 1 and 2 meaning that any signal on channels 1 and 2 (mic or line) will mute channels 3, 4, 5 & 6. The muted channels will automatically ramp back up to normal volume when the signal on channels 1 and/or 2 is no longer active.
PAGE 6
Important Safety Information 1. Save the carton and packing material even if the equipment has arrived in good condition. Should you ever need to ship the unit, use only the original factory packing. 2. Read all documentation before operating your equipment. Retain all documentation for future reference. 3. Follow all instructions printed on unit chassis for proper operation. 4. Do not spill water or other liquids into or on the unit, or operate the unit while standing in liquid. 5.
PAGE 7
19. Non-use periods. The power cord of equipment should be unplugged from the outlet when left unused for a long period of time. 20. Service Information Equipment should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged. B. Objects have fallen, or liquid has been spilled into the equipment C. The equipment has been exposed to rain D. The equipment does not appear to operate normally, or exhibits a marked change in performance E.