AMIS 60 4 Input 60 Watt MIXER-AMPLIFIER The AMIS60 is a 4 channel, 60 watt mixer amplifier suitable for rack or desk mounting. The amplifier is a self contained compact unit of solid steel construction. Inputs The AMIS60 has four universal input channels with separate level controls. Each channel will accept balanced or unbalanced microphone, line and auxiliary inputs. The unit has industry standard XLR microphone sockets and dual RCA auxiliary sockets for each channel. An electronicallybalanced 600 ohm telephone input for paging is also provided. An insert point is also featured on the rear panel for those applications where an additional EQ or feedback eliminator may be required. Outputs The AMIS60 features 70 volt and 8 ohm isolated transformer outputs, plus a tape recorder output by means of dual RCA sockets. A balanced 700mV XLR output is also provided to feed up to 6 power amplifiers. A vox triggered relay output is also available on the rear panel for activation of external devices from the vox muting circuit. In most cases this would be used as a muting bypass relay, which when used with the appropriate external attenuator will maintain paging levels irrespective of the attenuator setting. VCA Control The master volume can be controlled remotely. External VCA control would normally be via a pot connected to a two wire rear panel barrier strip. Speaker Zone Selector A six position push button speaker zone selector with overriding “all call” is located on the front panel. Each of the six zone selectors switch the 70 volt speaker line output to 6 separate speaker zones. The “all call” selector overrides all 6 zones regardless of their on/off condition and places the 70 volt output to all 6 zones. Tone Generator The AMIS60 comes standard with an in-built four tone generator module. Tones include Bell, Pre-announce Chime, Alert Tone and Evacuate Tone. Any of these tones may be activated from a simple contact closure connected to the rear panel of the amplifier. A Pre-announce defeat switch is located on the front panel. Muting VOX muting is standard on the AMIS60. A mic or line signal on channels 1 or 2 will mute channels 3 and 4. The muting function can be disabled via an internal link. SPECIFICATIONS Power Output 60 Watts RMS Maximum Load 80 Ohms @ 70 Volts Power Bandwidth 60Hz - 17kHz (- 3dB) Frequency Response 60Hz - 23kHz (- 3dB) Total Harmonic Distortion 0.5% @ 1kHz rated power Signal To Noise Ratio -74dB all controls center Tone Controls Bass @ 100Hz Boost +12dB Cut -12dB Treble @ 10kHz Boost +9dB Cut -9dB Input Sensitivity Mics: 1mV @ 200 Ohms Aux: 150mV @ 47K Ohms Outputs Speaker: 70 Volts, 4 & 8 Ohm Tape: 350mV @10KOhms Line: Balanced 700mV Phantom Power 18 V DC Mic ins- Switch Controls 4 input channel gain 1 Bass control 1 Treble control 1 Master gain control 6 Speaker zone selector 1 Speaker “all call” selector 1 Pre-announce defeat switch 1 Phantom Power switch Tone Generators Four tone generator with Bell, Pre-Announce, Alert and Evac Protection Soft limiter for overload protection, plus AC and DC fuses. Muting Channels 1 and 2 will mute channels 3 and 4 Indicators Power “on” LED Power Source 120VAC 60Hz 3 pin IEC connector; 24VDC Power Consumption 125 Watts Dimensions 3.5" H x 19" W x 13" D Weight 22 lbs. AMIS 60 Phantom Power Phantom Power (18V DC) is available from all mic inputs. A rear panel phantom power on/off switch is also provided. Rack Mounting Standard Protection Internal current limiting protects the amplifier from both overload and overdrive conditions. Australian Monitor Installation Series amplifiers feature a protection network that provides greater stability and performance. Our amplifiers are recognised worldwide for their reliability and this is due to the extensive levels of current limiting which protect the amplifiers from both overload and overdrive conditions. Architectural and Engineering Specifications The mixer amplifier shall have four universal input channels, each comprising of a balanced microphone input with XLR female sockets and an auxiliary input using dual RCA sockets. The 70 volt line speaker outputs should be able to be switched via a six position selector with “all call”. A balanced XLR output to drive additional power amplifiers shall also be provided. The amplifier master section shall include one master gain control, two EQ controls, one with 12dB of cut and boost at 100Hz and the other with 9dB of cut and boost at 10kHz. Speaker outputs shall be transformer isolated at 70 volt and 8 ohms. The amplifier must be capable of delivering 60 watts RMS into an 80 ohm inductive load, with less than 0.5% distortion measured at 1kHz and with system hum and noise less than -74dB. The amplifier shall be an Australian Monitor Installation Series model AMIS60. ABOUT Australian Monitor Corporate Headquarters is located in Sydney, Australia. The organization has more than 20 years experience in the design and manufacture of audio amplifiers and associated products. They are a dynamic corporation, priding themselves on excellent customer service, better features and lower priced products for Sound Contractors and Audio Visual Integrators worldwide.