AGD Gran Vivace Mono-Block Power Amplifier (pair)

Name: AGD Gran Vivace Mono-Block Power Amplifier (pair)
Brand: AGD
Price: 18999.0 USD
Availability: InStock

$18,999.00 - $20,499.00

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Color: Silver

Silver
Special Edition - Mirror Finish

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Silver

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Product description

Design Philosophy

The AGD Gran Vivace Monoblock is the new addition to the AGD GanTube^TM Hi-End Power Amplifiers family. First to use the unique GaNTube™ technology with Gallium Nitride Power-Stage integrated into a Vacuum Tube, the AGD amplifiers are the most technologically advanced design available in the market today. The AGD “Gran Vivace” is rated 400W on 4ohm and it is characterized by an outstanding 50A peak output driving capability that will satisfy the most demanding loudspeakers and fill with musical sound pressure also the largest audio rooms. To achieve these performances, we have designed a new GaNTube^TM component, the AGD GaNTube KT120, larger and more powerful than its sibling AGD GaNTube KT88 MKii.

To achieve the highest-performance in audio reproduction, switching topologies must achieve nearly ideal switching waveforms, completely oscillation-free, to minimize distortion but most importantly, to preserve the harmonic content present in the original input signal and avoid the superimposition of any additional artifacts that alter the overall spectrum and the spatiality of the music reproduction. The Gallium Nitride power MOSFETS used in the GaNTube^TM power-stage simplifies this challenge through its ability to efficiently switch at much higher slew rates than any silicon-based power MOSFET, with almost perfect (book-like) behavior and oscillation free switching.

In this new AGD GaNTube^TM 120KT, a pair of powerful 600V rated Gallium-nitride power MOSFETs are at the core of the design. These new advanced components are the key to the reference level performance of the AGD “Gran Vivace” Monoblocks. Thanks to the improvement in components, and PCB layout (tested and introduced recently with the AGD GaNTube^TM KT88 MKii), we achieved the goal to operate also this much larger power-stage at 800kHz, with a direct and positive impact on the overall already outstanding sonic and musical performances.

With the seamless ability to drive any loudspeakers, 400W of power, 50A of peak current, 70,000µF of super audio grade capacitor reservoir, and the fastest slew-rate, the AGDKT120GaNTube standard with the Gran Vivace, can deliver an incredible immersive holographic powerful and pure musical experience.
Thanks to the new 600V high-current Gallium-Nitride power MOSFETs stage, the improved layout with enhanced thermal characteristics and the virtually stray-inductance free package, the rise time and fall time of the Gran Vivace’s KT120GaNTube power stage are fully symmetrical and oscillation-free, with dv/dt similar to the one offered by the smaller sibling AGDKT88 Mkii used in the AGD “The Audion” and AGD “Vivace” amplifiers.

The AGD “Gran Vivace” is designed with the specific goal to satisfy the most demanding Audiophiles with the most critical efficient loudspeakers and the larger audio rooms.

This oscilloscope snap-shot of the output power stage half-bridge switching node, is a dramatic evidence of the tremendous difference in switching speed between the Gallium Nitride Power MOSFET and the state of the art Silicon Power MOSFET equivalent.

The combination of low noise design technique implemented and the best practice for the internal board layout, the RF quality BNC connectors for the analog signals, are the key contributors of the excellent noise floor of the Vivace Monoblocks and extremely low distortion.