The Wadia a102 digital stereo amplifier provides 50 watts per channel at 8 ohms or 80 watts per channel at 4 ohms. It shares the same Series 1 mini industrial design as the di122 digital audio decoder, making it a perfect amp to use with the di122. With their modern aesthetic, both will blend nicely with virtually any room styling to offer a complete audio system solution.
With an electronic switching design, our new generation of amplifiers are able to deliver massive amounts of power directly to your speakers with very little energy wasted in heat dissipation. They do away with the necessity for large cooling fins or noisy fans often found in other high power amplifiers. The result is a greener, compact and energy efficient amplifier.

As with all Wadia digital amplifiers, the a102 produces exceptional sound quality and performance. It features Wadia's new Signal Surveyor™ technology. Signal Surveyor monitors the amplifier's output signal and stops amplification if unsafe levels of DC voltage are detected, thus protecting your speakers from potential damage.

Both balanced and unbalanced inputs are available for connecting your other system components. Specially designed 5-way binding posts will securely hold your speaker wire; they are designed for easy finger tightening and come with a special tool if even more snug connections are desired. A trigger input and output makes it simple to control the power state of your entire system when the a102 is turned on/off.  

 

Technical specifications

POWER OUTPUT:

50 watts into 8 ohm loads
80 watts into 4 ohm loads

OUTPUT LOAD IMPEDANCE: 8 ohms or 4 ohms

RATED POWER BAND: 20Hz to 20kHz

TOTAL HARMONIC DISTORTION:

0.2% maximum harmonic distortion at any level from 250 milliwatts to one-half of rated power output, 20Hz to 20kHz;
0.5% maximum harmonic distortion at any level from one-half to full rated power output, 20Hz to 20kHz

DYNAMIC HEADROOM: 

1dB 8 ohm load
1.3dB 4 ohm load

FREQUENCY RESPONSE: 

+0, -0.5dB from 20Hz to 20kHz
+0, -3.0dB from 10Hz to 50kHz

INPUT SENSITIVITY (for rated output): 

1.4V Balanced
0.7V Unbalanced

A-WEIGHTED SIGNAL TO NOISE RATIO: 

96dB (113dB below rated output) Balanced
93dB (110dB below rated output) Unbalanced

INTERMODULATION DISTORTION: 0.1% maximum if instantaneous peak power output does not exceed the rated output for any combination of frequencies from 20Hz to 20kHz

WIDE BAND DAMPING FACTOR: 

Greater than 200, 8 ohm load
Greater than 100, 4 ohm load

INPUT IMPEDANCE: 15K ohms Balanced and Unbalanced

VOLTAGE GAIN: 29dB

TRIGGER INPUT: 5-15VDC, <1mA

TRIGGER OUTPUT: 12VDC, 50mA maximum, delayed 0.2 seconds

OVERALL DIMENSIONS: 

Width 10 inches (25.4 cm)
Height 3-5/32 inches (8 cm) including feet
Depth 14 inches (35.6 cm) including cables

WEIGHT: 8.5 pounds (3.9 kg)

Note: All Specifications are with AC Line voltage of 120V.