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Front and Rear Panels
pro.Bose.com
FreeSpace
®
ZA 2120-LZ/HZ
ZA 2120-LZ/HZ front panel
POWER SWITCH – ON/OFF AC power.
POWER LED – Solid blue LED indicates the unit is ON. Blinking blue LED indicates the unit is in standby mode.
INPUT SIGNAL LED – LED is green from –37 dBu to 11 dBu, LED goes red over 11 dBu.
OUTPUT LIMIT LED – LED is green from –46 dBFS to –2 dBFS, LED goes red over –2 dBFS, approximately 80 W/channel. For
each output, 120 watts is 0 dBFS.
ZA 2120-LZ/HZ rear panel
INPUT – Balanced and unbalanced line-level input connectors.
AUTO STANDBY – If enabled (ON) the amplifier will go into standby mode after twenty minutes without an input signal. If in standby
mode and an audio signal is detected, the amplifier will automatically wake and amplify audio within 0.7 seconds. The OFF position
disables the feature.
INPUT (HZ only) – The input can be set to either DUAL mono inputs or SUMMED to one mono input.
OUTPUT (LZ only) – The output can be set to STEREO or MONO.
REMOTE 1 CONTROL (HZ only) – Sets the REMOTE 1 input to control both outputs (or zones) simultaneously (ZONE 1+2), or
allows each REMOTE input to control its own output (ZONE 1). If only one remote is being used, then this switch must be set to
ZONE 1+2.
70V/100V – Sets the outputs to 70V or 100V.
MUTE – Contact closure connection that upon trigger (short) will mute all outputs.
REMOTE – Input connectors for the Bose
®
volume control user interface accessory (PC 041966).
OUTPUT TRIM – Allows for up to 40 dB attenuation of each loudspeaker output.
OUTPUT – Two inverted 2-pin Euroblock connectors for loudspeaker connections. Outputs are not bridgeable.
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