Europe Audio Diffusion


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, our 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 in the amplifier circuitry that assures full output power is delivered over the entire audio spectrum. To protect your speakers, Signal Surveyor™ monitors the output signal and stops amplification if unsafe levels of DC voltage are detected.

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.


Puissance de sortie :
400 watts into 8 ohm loads
500 watts into 4 ohm loads
Facteur d'amortissement large bande :
> à  320, 8 ohm load / > à 160, 4 ohm load
Impédance de charge de sortie : 8 ou 4 ohms Impédance d'entrée : 10K ohms Asym & Sym,
Bande passante : 20Hz à 20kHz Voltage gain : 29dB
Distorsion harmonique totale :
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
Entrée Trigger : 5-15VDC, <1mA

Sortie Trigger : 12VDC, 50mA maximum,
delayed 0.2 seconds
Dynamique Headroom :
1,7dB 8 ohm load
2,7dB 4 ohm load
Dimensions :
Largeur : 45.4 cm
Hauteur : 8.6 cm, pieds inclus
Profondeur : 50.8 cm, pieds inclus
Réponse en fréquence :
+0, -0.5dB from 20Hz to 20kHz
+0, -3.0dB from 10Hz to 70kHz
Poids : 12 kg
Sensibilité d'entrée :
4V Sym. / 2V Asym.
Rapport signal bruit (A-Pondéré) :
90dB (112dB below rated output) Sym.
87dB (110dB below rated output) Asym.

Documentation Produit :

a340 Brochure