Stewart Audio

DA Series - Lightweight Half Rack Digital Power Amplifiers

DA 70-2 Angle
DA 70-2 Angle | DA 70-2 Back | DA 70-4 Angle | DA 70-4 Back | DA 770-2 Angle | DA 770-2 Back
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DA Series Description

Stewart Audio's Compact Series Power Amplifiers are designed to meet the needs for high quality Commercial, Industrial and Professional Audio sound installations.

The all Digital Compact Series was specifically designed to meet the rigorous requirements of Sonic Accuracy, High Efficiency, Low Power consumption and extended duty cycles in a very compact Half Rack Package. Two units (up to 8 channels) may be rack mounted in a 1U package.

Datasheets: DA70-2 | DA70-4 | DA770-2
Manuals: DA70-2 | DA70-4 | DA770-2

Power Specifications

DA70-2
70W x 2 @ 4 Ohms
35W x 2 @ 8 Ohms
DA70-4
70W x 4 @ 4 Ohms
35W x 4 @ 8 Ohms
DA770-2
80W x 2 @ 70.7 Volts

DA Series Features

- Ultra Efficient All Digital Design
- Switch Mode Power Supply
- Convection Cooled (no Fans)
- Very Low Power Consumption
- Multi-Channel Compact Half Rack Package
- Optimized to drive both 4 & 8 Ohm loads
- World Class Reliability
- Rack Mount Up to 8 CH in 1U Space
- 3 Year Parts and Labor Warranty

Applications

- Audio Video Production
- Pre/Post Productions
- Project Studios
- Room Combining
- Broadcast Applications
- Board Rooms
- Sound Reinforcement
- Fixed Installations
- Amplifiers located in Listening Environment

Product Specifications

8 Ohm Stereo Power 35 W x 2
4 Ohm Stereo Power 70 W x 2
   
Frequency Response (+0, -.5dB, 1W) 20 Hz-20kHz
Full Power Bandwidth (20 Hz-20kHz + - .5dB
Signal to Noise >85dB
THD+N < .1%
Input Sensitivity 1V (0 dBV)
Standard Voltage Gain 17X (25dB)
Input Impedance (Balanced / Unbalanced) 10k Ohms/5k Ohms
Class Damped Ternary Modulation
Input Connectors Phoenix Type
Output Connectors Phoenix Type
Power Supply High Speed Switching
Cooling Convection-Cooling (No Fans)
Controls Power on/off, Channel Gain
LED Indicators Power & Clip
Construction Steel & Aluminum Chassis
Operating Voltage Non-PFC units 120 VAC
Dimensions (h, w, d) 1.75"H x 8.26"W x 10.6" D
Weight 3.4 lbs (1.54kg)
Warranty 3 years Parts & Labor