Related Manuals for AUSTRALIAN MONITOR IS1200
Summary of Contents for AUSTRALIAN MONITOR IS1200
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Page 1: Operation Manual
Clever Features, Contractor Friendly IS600 IS1200 Stereo Professional Audio Amplifiers Installation & Operation Manual... -
Page 2: Introduction
Introduction The Australian Monitor Installation Series IS600 & IS1200 are 2 RU stereo power amplifiers. The IS600 delivers 300 watts per channel @ 4 ohms & the IS1200 delivers 600 watts per channel @ 4 ohms. Designed for permanent installations where high quality audio reproduction is required on a small budget, the IS series deliver the sound quality &... -
Page 3: Protection Features
Features • Custom 2RU design. • High efficiency toroidal mains transformer. • Binding post and 4 pole speaker output connection. • Stereo or Parallel operation. • Balanced inputs and buffered attenuators. • Signal Present indication. • Output clip indication. • Efficient front to back cooling. •... -
Page 4: Table Of Contents
If you are in need of special assistance and the information you require is outside the scope of this manual, please contact your nearest service agent or Australian Monitor direct: THE TECHNICAL OFFICER... -
Page 5: Front Panel
Front Panel 1 Attenuator There are 2 level controls on all IS models. Each control is labelled for the channel which it controls. 0dB indicates minimum attenuation. 2 Clip Indicator This LED displays the status of the output stage and displays two levels of operation. - Page 6 NOTE: The amplifier is not damaged by running into clipping, but speakers may be. To maximise the life of your speakers, try to keep clipping infrequent. 3 Power Switch This switches AC power to the amplifier. Press the switch to up for power on and down for power off.
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Page 7: Rear Panel
Rear Panel 7 Balanced XLR Input A female 3-pin XLR type connector is provided for each input: Pin 1 = Signal Ground; Pin 2 = Hot (non-inverting or in phase); Pin 3 = Cold (inverting or reverse phase). 8 Balanced 6.35mm TRS Input A female 6.35mm TRS connector is provided for each input. - Page 8 See the installation section of this manual for detailed information on speaker connector wiring. 13 Mains Fuse The IS600 is fitted with a 8 amp slow blow fuse & the IS1200 is fitted with a 15 amp slow blow fuse. 14 Mains Connection Your amplifier is fitted with an internationally recognised IEC mains inlet connector.
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Page 9: Installation
Installation Power Requirements Ensure that your mains voltage is the same as the rear panel mains voltage marker (+/- 10%). Mounting Your amplifier is designed for standard 19” rack mounting and occupies 2 EIA rack units. Cooling Each channel of your IS Series amplifier is cooled by an axial fan which draws cool air from the front of the amplifier and expels heated air out the rear of the amplifier. - Page 10 the amplifiers are to be operated in an environment where the airflow is restricted, such as sealed racks, cooling should be supplemented by extra cooling fans to evacuate the heated air and aid the flow of cool air through the amplifier. Input Wiring IMPORTANT Do not directly connect pin 1 on the amplifier’s input XLR or TRS jack, to the...
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Page 11: Operation
Binding Post Outputs When terminating to the 4 mm binding post (banana jack) output connectors, banana plugs or bare wires can be used. The red terminal is positive and the black terminal is negative (ground). Speaker Outputs When using the 4 pole speaker connector for speaker output, use only the mating 4 pole in-line connector. - Page 12 Before making any connections to your IS Series amplifier, observe the following: Ensure the mains voltage supply matches the label on the rear panel of your amplifier (+/- 10%). Ensure that the power switch is OFF. Ensure that all system grounds (earth) are connected from a common point.
- Page 13 Sensitivity Your amplifier is a linear device operating with a fixed input to output voltage gain (less attenuation). The maximum output voltage swing is determined by the applied mains voltage, load, load type and the duty cycle of the applied signal. The input sensitivity for your IS Series amplifier when the attenuator is at maximum position (fully clockwise) is determined by the Input Sensitivity switch.
- Page 14 Earth loops can arise from the connection of the various pieces of equipment and their connections to various safety earths. This is by far the most common cause of hum and it occurs when source equipment and the amplifier are plugged into different points along the safety earth where the safety earth wiring has a current flowing through it.
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Page 15: Maintenance
Maintenance Only competent qualified persons should attempt any service or maintenance of your amplifier. Your IS Series amplifier will need minimal maintenance. No internal adjustments need to be made to the unit to maintain optimum performance. To provide years of unhindered operation we suggest a maintenance inspection be carried out on a regular basis, say every 12 months or so. -
Page 16: Specifications
20Kohm Signal/noise ratio >99dB 20Hz-20kHz Weight 16.5KG Dimensions (w 483mm 452mm 89mm IS1200 Specifications Output @ 8 ohms 2 x 400 watts Output @ 4 ohms 2 x 600 watts Frequency Response <10Hz - >50kHz (-3dB) <0.03% @1kHz Crosstalk 60dB...
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