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WADIA DIGITAL Wadia - a340 Power Amplifier

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Item: AWDAA340

Wadia a340 Power Amplifier

The Wadia a340 digital mono amplifier provides 400 watts at 8 ohms or 500 watts at 4 ohms into a single channel. It shares the same sleek, modern industrial design as the 321 decoding computer, making a pair of a340s a perfect choice to use with the 321 to build your audio system.

Due to their electronic switching design, a new generation of amplifiers - including the a340 - are able to deliver massive amounts of power directly to your speakers with very little energy wasted in heat generation and dissipation. The large cooling fins or noisy fans often found in other high power amplifiers are no longer necessary. The result is a greener, compact and energy efficient amplifier.

The a340 includes the latest technology from Wadia. It features a comprehensive balanced signal design from input through output stage known as IO Symmetry that provides total system differential pairing - resulting in increased audio quality and noise reduction. Frequency Switching Transmission (FST) is an adaptive modulation design that reduces distortion at any power level over the entire audio spectrum. Utilizing a feedback technique, it makes real time micro-adjustments to the switching carrier frequency to improve linearity, thereby significantly reducing audio distortion. The higher the amplifier's power output, the greater observed reduction in distortion. To protect your speakers, Signal Surveyor monitors the output signal and stops amplification if unsafe levels of DC voltage are detected.

"Clean, uncluttered aesthetics provide no clue to the big, spacious, and generous delivery of these power amps. Loads of muscle ensure ample authority and pace, but never to the detriment of musical empathy."
Audio Video SA

Both balanced and unbalanced inputs are available for connecting your other system components; balanced and unbalanced outputs are also included for ease of connecting bi-amp configurations. 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 a340 is turned on/off.

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   400watts into 8 ohm loads
   500watts into 4 ohm loads
Impedance: 8 ohms or 4 ohms
Rated Power: 20Hz to 20kHz
   0.1% 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:
   1.7dB 8 ohm load
   2.4dB 4 ohm load
Frequency Response:
   +0, -0.5dB from 20Hz to 20kHz
   +0, -3.0dB from 10Hz to 70kHz
Input Sensitivity:
   4V Balanced
   2V Unbalanced
SNR (A-weighted):
   90dB (116dB below rated output) Balanced
   87dB (113dB 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 320, 8 ohm load
   Greater than 160, 4 ohm load
Input Impedance: 10K ohms Balanced and Unbalanced
Voltage Gain: 29dB
Trigger Input: 5-15VDC, <1mA
Trigger Output: 12VDC, 50mA maximum, delayed 0.2 seconds
Dimensions (WHD): 17-7/8" x 3-3/8" x 20"
Weight: 27 lbs.

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