Bose Professional FreeSpace IZA 250-LZ Integrated Zone Amplifier

Product Type:

Brand: Bose

SKU: FreeSpace IZA 250-LZ

The Bose FreeSpace IZA 250-LZ / IZA 190-HZ integrated zone amplifier provides signal processing, routing, paging and amplification for a wide range of commercial applications such as retail stores, restaurants and bars, hospitality venues, conference rooms, schools and auxiliary zones. The integrated zone amplifier offers a variety of easy-touse input connections (mic/line/page), input gain and output level adjustments, and operational modes. Selectable Bose FreeSpace DS 16 and DS 40 loudspeaker EQ presets are available for loudspeaker optimization.

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.

  • 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

Number of Channels

Power Rating 4 Ohms:
2 x 50 W
8 Ohms:
2 x 25 W
Amplifier Class Class-D


Protections Short Circuit, Thermal
Frequency Response 40 Hz to 20 kHz +0/-3 dB (at 1 W)
Input Impedance 1/4", XLR Mic/Line:
2 Kilohms (Balanced)
2RCA Line:
20 Kilohms (Unbalanced)
Euroblock Page:
2 Kilohms (Balanced)
1/8" / 3.5 mm Aux:
20 Kilohms (Unbalanced)
Max Gain 50 dB
Max Input Level +10 dBV
THD+N ≤ 0.3% (at Rated Power)
Crosstalk ≤ -60 dBV (Below Rated Power, 1 kHz)

Signal Processing

Sample Rate 48 kHz
AD/DA Conversion 24-Bit
Latency 10.4 ms (Analog Input to Output)
EQ 2-Band Shelving EQ
Filters 1 x High-Pass
Ducking/Muting Yes
Limiting None


I/O 1 x Combo XLR-1/4" 3-Pin Female Balanced Line/Mic Input
1 x 1/8" / 3.5 mm TRS Female Unbalanced Aux Input
1 x Euroblock 4-Pin Male Balanced Page Input
2 x 2RCA TS Female Unbalanced Line Input
1 x Euroblock 4-Pin Male Remote Input
1 x Euroblock 2-Pin Male Mute Input
4 x Barrier Strip 2-Pin Speaker Output
1 x 2RCA TS Female Unbalanced Aux Output
Digital I/O None
USB None


AC Input Power 100 to 240 VAC, 50 / 60 Hz
AC Power Connector 1 x IEC / NEMA 5-15
Current Consumption 230 VAC:
13.9 A (Max)
120 VAC:
7.6 A (Max)
Power Consumption 15 W (Idle)
200 W (Max)


Display & Indicators Blue LED (Power/Standby)
Red LED (Clip/Input/Signal)
Rackmount Size 1 RU (1/2-Rack)
Cooling Convection
Dimensions 8.4 x 1.8 x 12.2" / 213.4 x 45.7 x 309.9 mm
Weight 4.8 lb / 2.2 kg

Part Code

FreeSpace IZA 250-LZ

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