AVK


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POWER AMPLIFIER A600H

FRONT
  • Front manufactured exclusively in anodized aluminum and laminated glass.
  • Very strong construction.
  • Indicator lights:
    • POWER
    • HEATING
    • PEAK (For channel)
    • FAN1, FAN2, FAN3, (For channel)
    • VERY HOT (For channel)
    • DC ERROR (For channel)
    • OVERLOAD (For channel)



REAR

  • Balanced XLR and RCA inputs connectors.
  • Switches selectors inputs balanced - unbalanced.
  • Outputs can be configured in stereo or mono bridge mode.
  • Mono stereo - mono bridge switch.
  • Very low noise forced aeration fans.
    (These operate at different speeds or do not operate depending on the internal temperature, and operate independently per channel).


V.U. METERS

  • High resolution RMS Watt indicators, indicating 2, 4 and 8 Ohm chargers Independent, backlit.






INTERNAL ARCHITECTURE

  • All internal stages are designed exclusively by AVK with 0% feedback from start to finish, (with no stage-to-stage feedback). These have been created for superior dynamic response, with a low distortion level and the most lineal, extensive frequency response ever conceived for a power adaptor.

  • Pure class-A driver stage to fully calibrated tubes, in a unique, exclusive AVK dual rail configuration.

  • Output stage to top quality, fully-calibrated, class-A2 latest generation, MOSFET audio transistors created and patented by AVK. The transistors in this system amplify pure current alone, to give power at the voltages amplified by the valves, achieving 100% tube sound with never-before-heard levels of power.

  • Dual mono design 100%, throughout the audio signal excursion circuitry.

  • Super-wide power frequency, even at high powers.

  • Extra-fast dynamic response, even at high loads and high temperatures.

  • 100% audiophile-grade electronic components.

  • 1500VA in toroidal transformers with very low noise transference.

  • Forced ventilation system controlled by processes.

  • Overload protection and output short circuit.

  • Exclusive AVK DC error protection.

  • Critical control block for overheating produced by continuous overload.

  • Extremely strong, compact electronic construction.

OUR ELECTRONICS

The sophisticated A600H power stage control circuit controls tube and final transistor temperature, to ensure all these components always work in optimum conditions giving the best quality sound, protecting these costly components from overload and extreme working conditions.
The control circuit is a perfect output offset controller for all the amplifier stages and drivers.
The control circuit also controls tube heating times.

The resistors that amplify the audio signals are the most precise available on the market (0.1%). They are used in electronic equipment in the aeronautical and aerospace satellites, and figure zero capacitance and inductance, undetectable by the most sensitive analytical equipment in the world.
To ensure optimum quality, mica capacitators (low frequency) and polypropylene capacitators (high frequency) are used to treat, extract and stabilise the audio signals.
We use ceramic tube sockets to improve heat dissipation of the solder boards and internal socket pins are gold coated for superior tube-circuit contact.

The A600H, a class A2 (AVK) device deliver such high power levels and dynamics that the cooling and high current and voltage controls need these strong power units in the final stage, which are cooled with variable forced ventilation, so that the output components work at the correct temperatures at all times, controlled by the control board.
The long-lasting fans have very low noise ceramic sleeves for superior airflow.

All the filter feeding and peripheral capacitators are 105ºC for higher quality and durability.
With more than 150,000uF and a series induction trap - parallel capacitator multiply this value by x10, guaranteeing great current filtering, power and dynamics in the audio signals amplified for the best quality sound.

All nodes and face-to-face connections on our printed circuits are treated exclusively with gold to achieve zero resistance contact and solder joints and optimum reliability in soldering and connections in our circuits.

The cable used in our devices is manufactured using the best available materials. The technical specifications from the manufacturers of these materials state that they are used in the aerospace industry (see www.farnell.com/datasheets/9262.pdf ).
This leads to minimum electrical transmission loss.
Is it worth spending a lot of money on external cables if the wiring inside the pre-amplifier and power amplifiers is of standard quality? We understand the answer to this question.

SPECIFICATIONS

FREQUENCY RESPONSE :

4Hz – 275000Hz (+0, -3dB) (8 Ohms)

TOTAL HARMONIC DISTORTION ::

0’09% (Maximum output)

SIGNAL NOISE RATIO :

>105dB (input unbalanced)
>112dB (input balanced)

MAXIMUM INPUT LEVEL :

Balanced :         10V RMS
Unbalanced :      7V RMS

INPUT IMPEDANCE :

Balanced :         47k Ohms
Unbalanced :       22k Ohms

MAXIMUM POWER OUTPUT :

STEREO MODE :
                                 8 Ohms :   200Watts RMS
                                 4 Ohms :   350Watts RMS
                                 2 Ohms:    600Watts RMS

BRIDGE MONO MODE:
                                 8 Ohms:    700Watts RMS
                                 4 Ohms: 1.200Watts RMS

OUTPUT IMPEDANCE :

STEREO MODE :
                                 16, 8, 4 y 2 Ohms (Maximum load)

MONO BRIDGE MODE :
                                 16, 8 y 4 Ohms (Maximum load)

CONSUMPTION :

    85 Watts (Minimum power)

1520 Watts (Maximum power)

DIMENSIONS :

Width :          430mm
Height :         214mm
Depth :          421mm

WEIGHT :

41 Kg.