User manual AUSTRALIAN MONITOR AMIS120XL

[. . . ] If no mid cut or boost is required, the control should be left in the center (0) position. Treble Control The Treble control is part of a 3 band equalization system within the AMIS120XL. The Treble control allows the user to increase or decrease the amount of treble in the system. Generally, a small increase of the treble control makes a system sound `brighter'. If no treble cut or boost is required, the control should be left in the center (0) position. Master Control The master control sets the overall output level of the AMIS120XL. [. . . ] All 4 tones can be activated individually using the rear panel terminal strip. Shorting "Common" to the relevant tone name will activate that particular tone. The volume level of the tone is set via an internal pot (R63) which is located to the far right (when looking from the front) of the front mixer PCB. Please note that the level of the tones is not affected by the "Master" control on the front panel. Inputs 1, 2 and 3 on the other hand will mix with the tones and can be used at the same time. 600 Ohm Telephone Input The 600 ohm transformer balanced Telephone Input is paralleled with input 2. If telephone paging is required the XLR & dual RCA inputs should not be used as these inputs will be summed with the Telephone Input into channel 2. The front panel level control will set the gain for the Telephone Input. Insert Point The AMIS120XL includes an Insert Point to allow for connection of signal processors such as equalisers, compressors or Feedback Exterminators. The Insert Point is located (electronically) between the mixer and power amplifier sections of the AMIS120XL. It allows for the "mixed" output of the AMIS120XL to be processed externally and then returned to the power amplifier section of the AMIS120XL. The Insert Point is a 3 conductor (Tip, Ring, Sleeve) socket which accepts a standard stereo 6. 35mm (1/4") jack. The one jack allows for signals to be "sent" to the processor and then "returned" to the power amplifier. This is the signal from the mixer stage which is to be sent to the processor Sleeve This is the ground connection When an external processor is used via the insert point, it only affects the power amplifier section of the AMIS120XL. The tape output remains unprocessed. Tape Output The AMIS120XL includes a tape recorder output with dual RCA connectors. Although the output signal is mono, dual RCA's are provided to allow for easy connection to domestic or professional tape recorders. The output level of the tape output is governed by the 8 input controls of the AMIS120XL. In a practical situation, this allows for "on the fly" changes to the power amplifier level (to turn the PA system up or down) without affecting the signal being recorded. Line Output A 3 pin male XLR socket is provided to allow for connection to additional power amplifiers. The line level signal is the mixer output of the AMIS120XL allowing this "mixed" signal to be split to other amplifiers. This is most commonly used when more power (than the 120 watts of the AMIS120XL) is required. In this situation, a standard microphone lead is used to connect the line output of the AMIS120XL to the line input of a power amplifier. The speaker load then needs to be split into two (one for each amplifier) making sure that each amplifier is driving no more than it's recommended load. The line output is a balanced 700mV signal which can be used to connect (daisy-chain) up to 6 power amplifiers. If more than 6 amplifiers are required, a distribution amplifier is recommended. Microphone Inputs The AMIS120XL includes 8 microphone inputs. [. . . ] Do not run the output of any amplifier channel back into another channel's input. Do not parallel- or series-connect an amplifier output with any other amplifier output. Australian Monitor Audio Inc is not responsible for damage to loudspeakers for any reason. Never connect a "hot" (red) output to ground or to another "hot" (red) output! [. . . ]