English Installation and Operating Guide Page 27
pro.Bose.com Setup and Operation
3. FreeSpace
®
ZA 190-HZ/250-LZ Zone Amplifier
3.1 Contents
AC power cord
RCA cable
Feet with pins (4)
Spade lugs (8) (LZ only)
3-pin Euroblock (HZ only)
(1) Power cord
(1) RCA stereo cable
(4) Feet with pins
(8) Spade lugs (LZ only)
(1) 3-pin Euroblock (HZ only)
3.2 Front-panel controls and indicators
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Note: Front-panel controls and indicators are identical on the FreeSpace
®
ZA 190-HZ amplifier.
. OFF/ON switch
Turns amplifier on or off.
3 POWER indicator
Illuminates blue when amplifier is on.
3.3 Rear-panel controls
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. OUTPUT MODE switch (ZA 250-LZ only)
Allows stereo input sources to be output in mono or stereo.
Note: The ZA 190-HZ is designed to sum both inputs channels to mono.
3 Output TRIM control
Allows for attenuating individual loudspeaker outputs relative to the Master Level of the connected IZA 190-HZ/250-LZ
amplifier. The adjustment range is –20 dB to 0 dB. This feature is helpful when one output is powering loudspeakers
that need to be set at a lower volume level than loudspeakers on other outputs – including the outputs of an integrated
zone amplifier.
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