BOSE Silver IZA 2120 HZ integrated zone amplifier

For background/foreground music and paging applications, Bose® FreeSpace® IZA 2120-HZ integrated zone amplifier elevates the audio experience when using FreeSpace® loudspeakers. Optimized for commercial applications, FreeSpace IZA amplifiers feature selectable Loudspeaker EQ to enrich audio quality, Opti-voice® paging for clear speech intelligibility while providing seamless transitions and Dynamic EQ that ensures full and balanced music at any volume level.
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  • True two-zone capability provides two independent outputs that each support volume/source selection remotes, EQ, tone controls, and paging/auxiliary routing options 
  • Opti-voice® paging equalizes the vocal frequency range for clear speech intelligibility while providing seamless transitions 
  • Dynamic EQ ensures full and balanced music at any volume level 
  • Independent Loudspeaker EQ per output enriches audio quality and simplifies connection to Bose® loudspeakers: FreeSpace® 3 systems, FS3 subwoofer, DS 16, DS 40 and DS 100 
  • Dual remotes support optional volume/source selection for independent, or combined, zone control which eliminates the need for bulky, inefficient, and sound-altering 70/100V in-line volume controls 
  • Expansion-ready connectivity with FreeSpace ZA amplifiers to drive additional zones 
  • Reliable 2 x 120 W Class-D amplification optimized for 70/100V high-impedance applications 
  • Intuitive feature setup enables the amplifier to be configured without a PC for remote, paging, auxiliary input/output and automatic standby options 
  • Auto-Standby feature allows the amplifier to consume less power when not in use 
  • Simplified front panel interface provides end users with tone, source selection and master volume controls as well as a connection to mobile sources via a 3.5 mm connector 
  • Remote muting allows the amplifier to be muted via a centralized control system


  • Retail stores
  • Restaurants and bars
  • Hospitality venues
  • Conference centers
  • Schools
  • Auxiliary zones

Technical Summary

Frequency Response 
55 Hz - 20 kHz (+0/–3 dB, @ 1 W reference 1 kHz)

Amplifier Power 
2 x 120 W @ 70/100V

≤ 0.3 % (at rated power)

Dynamic Range
88 dB

Built-in Loudspeaker EQ 
Bose FreeSpace® 3 systems, FS3 subwoofer, DS 16, DS 40 and DS 100

Input Channels 
Line Inputs: 2 unbalanced, 2 balanced
Page Input: 1 balanced mic/line
Auxiliary Input: 1 unbalanced line

    • Weight
      4.1 kgs
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