AMS8-2 — Mkiii 8 Channel Audio Monitoring System

ANALOG OUTPUT

Frequency Response 1.5 dBu from 20Hz to 20kHz Impedance 60Ω Balanced Max Output 23.5 dBu Noise Less than -70 dBu THD Less than 0.05% Connector Type DB 25 male

AES/EBU INPUTS

AES/EBU OUTPUTS

MONITOR OUTPUT

HEADSET JACK

Type ¼ inch TRS jack

POWER

Input 90-230 VAC,50-60 Hz

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There are eight illuminated push button switches arranged in two rows of four. The upper row designated INPUTS selects the input source to be monitored. The lower row designated PRESETS selects a preset configuration or condition under which the signal is monitored.

The two control knobs designated SELECT and VOLUME are rotary shaft encoders with integral push switches. In the simplest mode of operation, the SELECT knob allows the user to scroll through available options while the VOLUME button adjusts the listening level of the AMS8's speakers.

All eight pushbuttons, as well as the two knobs with integral push switches, are used in conjunction with the three eight-segment readouts when the unit is configured during SYSTEM SETUP.

SYSTEM SETUP

To enter system setup, press and hold INPUT buttons 1/2 and 7/8 with one hand and press the SELECT knob. The top left readout will display System and the top right readout will display Setup. Press the SELECT button again to enter the mode of operation selection. The top right readout will display Mode X, where X is 1, 2, or 4. The VOLUME knob may be rotated, in either direction, to select the appropriate mode of operation.

Rotate the SELECT knob one step clockwise to enter the reference signal setup. The top right readout will display Ref and also Int, 75Ω or 110Ω.

Ref Int - means that the internal 48 kHz reference is used Ref 75Ω - means that an external unbalanced reference will be used Ref 110Ω - means that an external balanced reference will be used Rotating the VOLUME knob in either direction selects the appropriate reference source.

Rotate the SELECT knob another step clockwise to enter the AES OUTPUT #4 Setup. The top right readout will display Out4 and In4 or Mon. Rotating the VOLUME knob in either direction will toggle between In4 and Mon.

Out4 In4- means that AES input #4 will be routed to AES output #4. Out4 Mon - means that the Monitor Output will be routed to AES output #4.

Rotate the SELECT knob another step clockwise to enter the Dialogue Normalization setup. The top right readout will display Dn and Enbd or Dsbd. Rotating the VOLUME knob in either direction will toggle between Enbd and Dsbd.

Dn Enbd - means that the dialogue normalization level in the metadata will be applied to the dolby signal. Dn Dsbd - means that the dialogue normalization level in the metadata will not be applied to the dolby signal.

Rotate the SELECT knob another step clockwise. The top right readout will display Vol and a default volume level reading between OFF, -60db and +15dB.

The VOLUME control is used to set the default volume level, in one dB steps, for monitoring audio.

Rotate the SELECT knob another step clockwise. The top right readout will display O/P and either Var or Fix. Rotating the VOLUME knob in either direction will toggle between Var and Fix.

O/P Var - means that all the outputs of the unit will be level controlled and follow the action of the VOLUME control O/P Fix - means that all the outputs will be a fixed line level (-20 dBFs for digital outputs and +4dBu for analog outputs) the VOLUME control will only affect the level of the internal speakers and also the two monitor outputs on the back of the unit.

Rotate the SELECT knob another step clockwise. The top right readout will display Cal and a reference level reading between -22dB and -10dB.

The VOLUME control is used to set the reference level, in two dB steps, for monitoring audio.

Rotate the SELECT knob one more step clockwise. The top right readout will display Spkr and either On or Off. Rotating the VOLUME knob in either direction will toggle between On and Off.

(In version 1.x.x.x) Spkr On means the internal speakers, headset jack, and monitor output are enabled. Spkr Off means the internal speakers, headset jack, and monitor output are disabled. (In version 2.x.x.x) Spkr On means the internal speakers and headset jack are enabled. Spkr Off means the internal speakers and headset jack are disabled.

Rotate the SELECT knob one more step. The top right readout will display Exit.

Push the SELECT knob to return to the System Setup screen. To exit system setup, turn the SELECT knob one step counter clockwise. The top left readout displays Exit and the top right readout displays System. Push the SELECT knob once to exit the system setup procedure.

CHECKING THE FIRMWARE

When the system setup mode has been activated and the top left readout displays System, and the top right readout displays Setup rotating the SELECT knob clockwise the top left readout will cycle through the following.

Inputs - This configuration setup allows you to select the input sources that will be enabled during monitoring (See INPUTS SETUP).

Assigns - This configuration setup applies only to units set to operate in Mode 1. (See ASSIGNMENT SETUP)

Firmware - This allows you to check the version of firmware installed in your unit. Press the SELECT knob once and a numeric code will be displayed in the top right readout such as 1.0.0.1. This is the firmware version identifier and is information that will be helpful if you contact the factory for technical assistance.

To exit the firmware interrogation mode, rotate the SELECT knob one step in either direction and push the SELECT knob once when the top right readout displays Exit.

INPUTS SETUP (for all modes)

A fully assembled AMS8 has multiple program inputs (75Ω, 110Ω, Analog, SDI 1 (A) Groups 1 and 2, SDI 1 (A) Groups 3and 4, SD1 2 (B) Groups 1 and 2 and SDI 2 (B) Groups 3 and 4. The Inputs setup allows an operator to enable or disable the input option during monitoring. When the System Setup mode has been activated and the top left readout displays System and the top right readout displays Setup, rotating the SELECT knob clockwise one step will put the unit in the Inputs setup mode. Press the SELECT knob once and the 75Ω option will be displayed in the top right readout and whether the Input option is enabled. If (Y

DISPLAYS

Eight 46 segment LED bargraph meters display VU and Peak Program information simultaneously. A reference LED (red) at the zero mark is continuously illuminated.

Three eight-character dot-matrix displays display signal parameters and status information. During setup, these displays are used to guide the user in making selections

Please note that primary functions for controls are designated in white, while secondary functions are designated in green

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