For background/foreground music and paging applications‎,‎ the Bose® FreeSpace® IZA 250‎-LZ and IZA 190‎-HZ integrated zone amplifiers are designed to deliver premium sound‎,‎ provide simplified set up and easy daily operation‎,‎ and offer the flexibility to expand when more loudspeakers are required‎.‎ When used with FreeSpace DS 16 and DS 40 loudspeakers‎,‎ even further sound optimization is possible through onboard selectable EQ presets‎.‎

Features

• Amplification for premium sound from a reliable‎,‎ high quality Class‎-D amplifier provides optimized performance and premium sound quality through the use of internal digital signal processing
• Installation made simple with set up done locally from the front and rear panels of the amplifier—no computer is required
• Opti‎-voice® paging provides smooth automatic transition between the music and page signals
• End‎-user friendly front panel allows users to connect devices easily‎,‎ make tonal adjustments or select between two sources‎.‎ Optional wall mountable Bose Volume control with A/B switch user interface allows volume and source selection controls to be placed away from the amplifier for user convenience
• Compact‎,‎ lightweight design enables the FreeSpace integrated zone amplifier to be placed out of the way—on a table‎,‎ desk‎,‎ counter‎,‎ shelf or in an equipment rack using the optional Rack Mount Kit accessory
• Easy connectivity and expansion are possible for applications where a second set of output channels are required‎.‎ An auxiliary line output is provided to share signals with an optional FreeSpace ZA 190‎-HZ

Technical Specifications

Power Rating

• Amplifier Power‎:‎ 1 x 90 W @ 70/100 V

Audio Performance Specifications

• Frequency Response‎:‎ 60 Hz ‎- 20 kHz ‎(‎+0/‎-3 dB‎,‎ @ 1 W reference 1 kHz‎)‎
• THD+N‎:‎ ≤1 % ‎(‎at full rated power‎)‎
• Channel Separation ‎(‎Crosstalk‎)‎ ≤‎-60 dBV ‎(‎below rated power‎,‎ 1 kHz‎)‎ 
• Dynamic Range 88 dB 

Integrated DSP

• A/D and D/A Converters 24‎-bit / 48 kHz
• Processing Functions Loudspeaker EQ‎,‎ Bose® Opti‎-voice® paging‎,‎ Dynamic equalization
• Loudspeaker Presets FreeSpace DS 16 and DS 40 loudspeakers‎,‎ High‎-Pass Filter ‎(‎HPF‎)‎
• Audio Latency 10.4 ms ‎- ‎(‎any input to speaker output or aux output‎)‎

Indicators and Controls

• LED Status Indicators Power ‎- blue‎,‎ Input clip ‎- red ‎(‎‎-3 dBFS‎)‎
• Controls‎,‎ Front Panel Power On/Off‎,‎ Input Select ‎(‎A/B‎)‎‎,‎ Tone Controls ‎(‎Treble/Bass‎)‎‎,‎ Mic/Line Gain‎,‎ Master Level
• Controls‎,‎ Rear Panel Amplifier Mode DIP switch‎,‎ Loudspeaker EQ preset selector‎,‎ Input Gain ‎(‎A/B/Page mic‎)‎‎,‎ Output trim

Electrical Specifications

• Mains Voltage 100 V AC ‎- 240 V AC ‎(‎+/‎- 10%‎,‎ 50/60 Hz‎)‎
• AC Power Consumption 15 W ‎(‎Idle‎)‎‎,‎ 200 W ‎(‎Max‎)‎
• Mains Connector Standard IEC ‎(‎C14‎)‎
• Maximum Inrush Current 13.9 Amps ‎(‎230 V / 50 Hz‎)‎‎,‎ 7.6 Amps ‎(‎120 V / 60 Hz‎)‎
• Overload Protection High temperature‎,‎ short

Physical

• Rack Space Units 1 RU high‎,‎ half rack wide
• Dimensions 1.8" H x 8.4" W x 12.2" D ‎(‎45 mm x 214 mm x 310 mm‎)‎ 
• Net Weight 7.0 lb ‎(‎3.2 kg‎)‎