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Page 38 Installation and Operation English
Specifications pro.Bose.com
Power Rating
Amplifier Power
Model ZA 250-LZ Model ZA 190-HZ
2 x 50 W @ 4 Ω; 2 x 25 W @ 8 Ω
1 x 90 W 70/100V
Audio Performance Specifications
Frequency Response
Model ZA 250-LZ Model ZA 190-HZ
20 Hz - 20 kHz
(+0/-3 dB, @ 1 W reference 1 kHz)
60 Hz - 20 kHz
(+0/-3 dB, @ 1 W reference 1 kHz)
THD + N
≤0.3% (at full rated power 4 Ω) ≤1% (at full rated power)
Channel Separation (Crosstalk)
≤-60 dB (below rated power, 1 kHz) ≤-60 dB (below rated power, 1 kHz)
Dynamic Range
88 dB
88 dB
Audio Inputs
Input Channels
Line Inputs
1 unbalanced
Input Connectors
Stereo RCA
Input Range
-10 dBV - +10dBV
Input Impedance
20 K Ω
Max Input Level
+10 dBV
Nominal Input Level
0 dBV
Audio Outputs
Outputs
Model ZA 250-LZ Model ZA 190-HZ
2 1
Connectors, Output
2-terminal barrier strip 3-pin inverted Euroblock
Nominal Output Level
2 x 50 W @ 4 Ω (Min); 2 x 25 W @ 8 Ω 1 x 90 W 70/100V
Controls and Indicators
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
100V AC - 240V AC (+ /- 10%, 50/60 Hz)
AC Power Consumption
15 W (Idle), 200 W (Max)
AC Mains Connector
Standard IEC (C14)
Peak Inrush Current
13.9 Amps (230V/50 Hz), 7.6 Amps (120V/60 Hz)
Overload Protection
High temperature, short
ZA 250-LZ/190-HZ Specifications
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