The Datasat RA7300 Multi-Channel Power Amplifiers bring a new level of quality and flexibility to high-end home theatre and multi-channel music systems. Perfect for anything from small media systems to dedicated top of the line home cinemas or even to outfit an entire home or estate, its advanced circuitry and careful design delivers one of the industry's most powerful, versatile and quietest power amplifiers.
The fully balanced differential design of the RA7300 doubles amplifier speed (slew rate) while reducing noise by 50%. Dual thermal sensors control very low speed fans with substantial heat sinks. The fan only operates when program material requires additional cooling to ensure fan noise is always masked by the content. In addition, dual DC servos ensure DC offset is minimised and thermal track transistors maintain the amplifier at its optimum bias point independent of its temperature.
The result is consistently low distortion and extremely quiet operation that provides highly accurate and refined music and soundstage reproduction. The RA7300 can support the latest multi-channel digital surround sound formats for outstanding audio quality even in the most demanding operating conditions.
The RA7300 is designed to be versatile and is rated for 4 and 8 ohm loads. With a rated output of 300 watts RMS into seven channels at 8 ohms, the RA7300 is powerful enough to deliver consistently excellent performance in any system.
The RA7300 amplifier is deigned to complement Datasat's RS20i high-end audio processor as well as the RA2400 stereo amplifier providing the ultimate listening experience for luxury home cinema.
Specifications:-
Power Output:
300 watts RMS x 7 channels @ 8ohms
450 watts RMS x 7 channels @ 4ohms
Frequency Response: 20Hz-20kHZ, +0, -0.25dB
THD, 20Hz-20kHz: Less than 0.05%
THD, 1kHz, rated power: Less than 0.005%
IMD: Less than 0.05%
Dual AC cords
Channels
User selectable for any of 8 channels from DB25 input connector via rear panel gold-plated sealed DIP switches.
Power Bandwidth, 10Hz-80kHz: minus 0.6dB @ 80Hz
Voltage Gain: 27.1dB
Slew Rate: Greater than 40/us
Crosstalk @ 1kHz: Greater than 80dB
Input impedance: 50kΩ (Balanced, 25kΩ each leg)
Input Sensitivity: 2.16V
Circuit topology
Fully balanced design utilizing thermal track, current feedback and DC Servo.
Connectivity
Input: RCA unbalanced, XLR balanced, DB25 balanced
Output: 5-way binding posts, DB25 pass through
Remote Trigger Voltage: 3-24V
Dimensions:
Fan cooled, 5 Rack Chassis
H/W/D: 22.23cm x 43.18cm (48.26cm with rack ears) x 53.34cm
Uses 5RU (Feet removed)
Weight: 123lbs
Weight shipping: 163lbs
Power requirements: 120V, 60Hz and 230V,50Hz