Amplificadores Barcelona, España
3.000 €


etapa de potencia de tres caneles, actualizable a 7
300 W de potencia con dos entradas de corriente
Precio de nuevo 6.000 euros.
Amplifier Technologies, Inc., the prolific manufacturer of many of the high end’s best amplifiers today introduced a new series of amplifiers designed by their president and chief engineer, Morris Kessler. The AT6000 series amplifiers, available with 2 to 7 channels, are the company’s first new amplifiers in over a decade. Furthermore, their “signature series” designation with a facsimile of Kessler’s signature on the main panel acknowledges the special nature of these designs.
✅ Current Feedback Balanced Class AB topology
✅ Dual DC Servos
✅ Dual-Differential Gain Stage

300W per channel
16 output devices per channel
59,400uF power supply capacitance per channel
5RU 8.75” rack mount, 9.75” standard height

The ATI AT 6003 amplifier and all the amplifiers in the AT6000 series are rated at 300 Watts RMS/channel into 8 ohms from 20Hz to 20kHz with no more than 0.03% THD with all channels driven and 450 Watts RMS at 4 ohms under the same conditions. The ATI AT 6003 amp has a signal-to-noise ratio that is typically 128 dB referenced to full output so each amplifier in the series is capable of playing back the full dynamic range available on today's lossless recordings. The AT6000 is available in 2 to 7 channel configurations and is upgradeable by adding 300 Watt power modules. Each model comes standard with 2 massive toroidal transformers with quick connect plugs.

ati at6003 front audio power amplifier
Beyond Kessler's personal identification, these amplifiers are new in more significant ways:

As in Kessler's previous top-of-the-line designs, these amplifiers are fully balanced, differential amps, but unlike his earlier balanced designs which were essentially balanced bridged amplifiers, the 6000 series uses only a single input stage with dual-differential output stages. The reason: the advantages of balanced designs are retained and noise is reduced by 50%.
The design uses current feedback instead of the more common voltage feedback. The reason: current feedback amplifiers are faster with virtually unlmited slew rate and are better able to reproduce today's best music and film.
Kessler used Thermaltrak output devices for the 6000 series. Unlike traditional designs where external diodes attached to the heat sinks track the amplifiers operating conditions and use the details to adjust bias, Thermaltrak devices have the diodes in the same package as the transistors. The results: bias is optimized in real-time.
The 6000 series use dual DC servos to track and maintain DC offset. The result: DC in the amplifier's output is reduced to insignificant levels.
These amplifiers use a revised PCB layout. They are still modular with the complete amplifier including the power supply parts on a single card, but now the AC components are on one edge of the board and away from the signal input. The result: improved signal-to-noise performance.
All of the amplifiers in the series use dual toroidal transformers, dual power switches and dual line cords. The results: the AT6002 is now a complete dual-mono design and the ampflifiers with many channels, as in the 7-channel AT6007, can be hooked-up to two independent 20 amp circuits for greater sustained output power than is possible from a single AC circuit.

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ID Anuncio 33281
Fecha de publicación 21/11/2022 10:46
Última actualización 21/11/2022 10:54

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