Technical Information
SoundTouch™ SA-4 Amplifier
Features
•Bose® proprietary digital signal processing technology
•
•Thermal overload protection
Dimensions and Weight
•14¼ in. wide x 5½ in. deep x 4¼ in. high (36.2 cm x 14.0 cm x 10.8 cm)
•11.0 lb (5 kg)
Power rating
•USA/Canada: 120V
60 Hz, 400W
•International: 
Input sensitivity
0.5 Vrms @ 1 kHz
Signal to Noise ratio (S/N)
90 dB
Output power (continuous average)
100W / channel minimum into 6 ohms, from 30 to 15 kHz, with no more than 0.5% THD.
Temperature range
32° F to 104° F (0° C to 40° C)
Speaker cable recommendations
Maximum Length | Gauge | |
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30 ft (9 m) | 18 | (0.82 mm2) |
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45 ft (14 m) | 16 | (1.3 mm2) |
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70 ft (21 m) | 14 | (2.0 mm2) |
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English - 27
