Bose FreeSpace E-4 Owner's Manual - Page 16
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10.1 Power amplifier
Power output
Total shared power available for all channels: 400W
Maximum power per channel: 400W
Output configurations
70.7V or 100V nominal
Frequency response
20 Hz to 20 kHz ±3 dB
Channel separation
>70 dB @ 1 kHz
1
THD
<1.0% at rated power, 0.1% at half rated power
Signal-to-noise ratio
>97 dB, A-weighted
Slew rate
20V/µs
10.2 Digital signal processing
Sample rate
44.1 kHz
A to D conversion
24-bit, 128x oversampling
D to A conversion
24-bit, 128x oversampling
1
Tested with AES 17 low-pass filter.
All specifications subject to change without notice.
10.0 Technical Specifications
1
1
10.3 Front panel indicators and
control connections
Amp output signal indicators
Zone 1 – Zone 4: dual-color LED
Source input signal indicators
Source 1 – Source 4: dual-color LED
Other indicators
System Status: dual-color LED
Direct Input: amber LED
Standby: amber LED
PC input
USB connector (for future use)
10.4 Rear panel inputs, outputs, and
controls
Line level inputs
Type: Unbalanced dual RCA connectors internally
summed to mono
Sensitivity: –20 dBV to +20 dBV
Impedance: 25K ohms
Input Clip Level: +17 dBV
Mic level inputs
Type: Balanced Euroblock connectors
Sensitivity: –60 dBV to 0 dBV
Impedance: 3.3K ohms
Input Clip Level: +17 dBV
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