Bose FreeSpace ZA 250-LZ and ZA 190-HZ zone amplifiers are designed to provide basic amplification and sound system expansion when using front-end signal processing from products such as the FreeSpace IZA 250-LZ / IZA 190-HZ integrated zone amplifiers, the FreeSpace 4400 business music system and ControlSpace engineered sound processors.

Features

• Premium sound quality from a reliable, high quality Class-D amplifier designed to expand sound systems for loudspeaker installations
• Expandable amplification allows for easy system expansion when coupled with a FreeSpace IZA 250-LZ or IZA 190-HZ integrated zone amplifier. The two amplifiers will function together as one system
• Compact, lightweight design enables the FreeSpace 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
• Two models available, 4/8 Ω or 70/100 V output, allow for better fit options for specific installations

Technical Specifications:

Power Rating

• Amplifier Power: 2 x 50 W @ 4 Ω, 2 x 25 W @ 8 Ω

Audio Performance Specifications

• Frequency Response: 20 Hz - 20 kHz (+0/-3 dB, @ 1 W reference 1 kHz) 
• THD+N: ≤0.3 % (at full rated power)
• Channel Separation (Crosstalk): ≤-60 dBV (below rated power, 1 kHz)
• Dynamic Range: 88 dB

Audio Inputs

• Line Inputs: 1 Unbalanced
• Connectors, Input: Stereo RCA
• Input Range: -10 dBV - +10 dBV
• Input Impedance: 20 kΩ
• Maximum Input Level: +10 dBV
• Nominal Input Level: 0 dBV

Audio Outputs

• FreeSpace ZA 190-HZ zone amplifier: 2
• Connectors, Output: 2-terminal barrier strip
• Nominal Output Level: 2 x 50 W @ 4Ω (min); 2 x 25 W @ 8Ω

Indicators and Controls

• LED Status Indicators: Power - blue
• Controls, Front Panel: Power On/Off
• Controls, Rear Panel: Mono/Stereo amplifier mode switch (ZA 250-LZ only), 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 11.9" D (45 mm x 214 mm x 302 mm)
• Net Weight: 4.4 lb (2.0 kg)