2-3
2.1.3.2 Performance
SPECIFICATION VALUE
Frequency Response (at 1 watt, 20 Hz – 20 kHz
into 8 ohms)
± 0.25 dB
Signal to Noise Ratio (below rated full bandwidth
power, A-weighted)
> 108 dB
Total Harmonic Distortion (THD) (at 1 watt into 8 ohms)
THD plus Noise (at full rated power)
Intermodulation Distortion (60 Hz and 7kHz at 4:1, from
full rated output to -30 dB)
< 0.35%
Damping Factor (20 Hz to 100 Hz at 8 ohms)
Crosstalk (below rated power, 20 Hz to 1 kHz)
Common Mode Rejection (20 Hz to 1 kHz)
> 55 dB, typically > 70 dB
DC Output Offset (Shorted input)
10 kilohms balanced, 5 kilohms unbalanced
Load Impedance (Safe with All Types of Loads)
Stereo: 1/2/4/8/16 ohms Bridge
Mono: 2/4/8 ohms
Input Sensitivity (Referenced to 8 ohm rated output)
1.4V, 32 dB gain, and 26 dB gain
Voltage Gain(Referenced to 8 ohm rated output)
Required AC Mains
Universal AC input, 100-240VAC, 50/60 Hz
(±10%). Maximum AC mains voltage
Table 2-4: Power Amplifier Specs: Performance
2.1.3.3 Construction
SPECIFICATION VALUE
Cooling
Dual-zone, microprocessor controlled, continuously variable speed fans,
front-to-back airflow
Cast aluminum with integrated handles
28 pounds (12.7 kg) net, 36 pounds (16.3 kg) shipping.
19 in. (48.3 cm) W x 3.5 in. (8.9 cm) H x 16.2 in. (41.1 cm) D.
Protection
Amplifier is protected against reactive loads, faults, and shorts. If one
channel experiences a catastrophic failure, the entire amplifier will shut
Table 2-5: Power Amplifier Specs: Construction
2.1.4 Tiger Board Description
The Sonar Interface board (Tiger board) is the real-time controller for sonar processing. It includes
transmit waveform tables and multiple channels of 10-bit high speed digital-to-analog (D/A) converters,
support for external and internal triggers, and support for multiple sonar analog-to-digital (A/D)
converters.