Bose IZA 190-HZ Specifications download pdf (Page 26)

Page 26 Installation and Operation English

Setup and Operation pro.Bose.com

Setup – Rear-panel controls

FreeSpace IZA 190-HZ

INPUT A

HPF

TRIM

100-240V~ 50/60Hz

INPUT B

FRONT MIC

MIX

AUX OUT

MONO

AUX OUT

STEREO

FRNT MIC

DUCK

FreeSpace IZA 250-LZ

. Amplier mode DIP switches

• PAGE/MIC NORMAL – BYPASS MASTER

Determines if page input source will follow the master level output or can be set at a ﬁxed output level to ensure

announcements are heard� When set to BYPASS MASTER use the respective input gain controls to adjust the volume

level of each microphone�

• AUX OUT MONO – AUX OUT STEREO (IZA 190-HZ) or OUTPUT MONO – OUTPUT STEREO (IZA 250-LZ)

Determines if stereo input sources will be output in mono or stereo via loudspeaker connectors and AUX OUT RCA

connectors� Using this switch in a mono position will help provide sufﬁcient gain for single-input devices� Mono switch

position will also sum stereo inputs for loudspeaker applications where stereo is not desired�

Note: On the IZA 250-LZ ampliﬁer, OUTPUT 1 is the left channel and OUTPUT 2 is the right channel when set to OUTPUT

STEREO� On the IZA 190-HZ, the left channel is routed to the loudspeaker output when set to AUX OUT STEREO�

• FRONT MIC MIX – FRONT MIC DUCK

Determines if front-panel microphone input will be mixed in with music source or if the music output level will be

automatically lowered (“ducked”) when someone speaks into microphone�

• AUX OUT EQ – AUX OUT FLAT

Determines if AUX OUT will have selected loudspeaker EQ preset applied to it or not� Allows for optimization of

FreeSpace DS 16 and DS 40 loudspeakers when used with additional zone ampliﬁers�

3 Loudspeaker EQ preset switch

Provides loudspeaker equalization presets designed to optimize the performance of Bose FreeSpace DS 16 or DS 40

loudspeakers� A high-pass ﬁlter (HPF) setting is also available for use with any passive loudspeakers� The high-pass

ﬁlter is set at 60 Hz for the IZA 190-HZ and at 40 Hz for the IZA 250-LZ�

The selected EQ preset (HPF, DS 16, DS 40) can be sent to an additional zone ampliﬁer via AUX OUT if “AUX OUT EQ”

is selected with the corresponding mode DIP switch�

$ Page input GAIN control

Allows for ﬁne-tuning page input levels� If the front-panel INPUT CLIP indicator is red, reduce the input gain�

The adjustment range is 0 dB to +50 dB�

/ Line input GAIN control

Allows for ﬁne-tuning of INPUT A/B levels� If the front-panel INPUT CLIP indicator is red, reduce the input gain�

The adjustment range is –20 dB to +20 dB�

1 Output TRIM control

Allows for attenuating individual loudspeaker outputs relative to the Master Level� 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 additional zone ampliﬁer�

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Bose IZA 190-HZ Specifications Page 26

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