Design Philosophy

The AGD SOLO GaN Monoblock Limited Edition amplifier is the most powerful amplifier of the AGD family.

Combining the world-wide recognized innovative AGD GaN technology with a new and always unique and elegant design, this amplifier promises to drive any demanding loudspeaker with outstanding results in terms of dynamics, details, and stage. 

The AGD SOLO is rated 600W max on 4ohm and it is characterized by an outstanding >70A peak output driving capability. 

GaN-Sound Power Monoblock

The AGD SOLO MONOBLOCK uses the same fundamental technology pioneered with the AGD Gran Vivace, AGD TEMPO, AGD AUDION, the first true Hi-End amplifiers based on Gallium Nitride power MOSFET

With the AGD SOLO, we have extended the use of the latest generation power semiconductors, GaN MOSFET up to a new level of overall sonic performances.

Thanks to the new GaNSound module improved components, enhanced thermal management, and a new optimized layout, we achieved our target to operate this much larger power stage at 800kHz, for the utmost outstanding sonic and musical performances. 

The New AGD GaN-Sound Module

Also, with the AGD SOLO we have retained the key fundamental feature of upgradable GaNSound power  module.

This is a key feature AGD has maintained with all amplifier designs, from the Audion to the Gran Vivace, the Tempo, and now the SOLO.

At AGD, we firmly believe the customers have the right to maintain the value of their investment; therefore, we enable upgrading the GaN output stage module when a new GaN MOSFET device delivers performance and technological improvement.

The GaN technology in power semiconductors is only ten years old versus 60 years of silicon technology evolution.

New improved GaN MOSFETs will, therefore, deliver augmented sonic performances using an upgraded module in the form of a new GaNTube or, like in the DUET and TEMPO and now the AGD SOLO, via a dedicated daughter board, easy to plug-in.

Main Board

The AGD SOLO new main board is a 4 layers PCB designed with the utmost attention to minimize the noise and limit the parasitics with an optimal control of the layout.

With extra large and thick copper traces (2oz), the new board presents a perfect ultra-low resistive path for high current flow and minimized stray inductance, allowing unprecedented rise and fall times.

The AGD SOLO main board is designed to accommodate an additional capacitor bank (on top of the one housed on the power supply circuit) up to ~200,000µF, a key feature to support the most dynamic current demand of the most difficult loads.

Moreover, the AGD“GaNSound” Module is easily removable for future upgrades and has an additional copper heat-spreader to maintain the most stable and safe temperature during operation.

New Smart Linear Power Supply

The AGD SOLO features a linear power supply with two SMART bridge rectification stages to minimize the conduction losses and virtually eliminate the reverse recovery losses. 

The power supply section is characterized by an oversized 700VA ultra-low noise toroidal transformer, completely encapsulated in resin inside a dedicated enclosure; the construction is virtually noise and vibration-free,

The total bulk capacitor bank of ~200,000µF makes available a surplus of dynamic power with unprecedented peak current capability for the most extended time.