The JAVA Hi-Fi Carbon Double Shot Power Amplifier is a standalone power amplifier designed for high-performance stereo systems. It can be connected to an external preamplifier or source component with a variable-level analogue output, delivering 400 W per channel into an 8 Ω load.

The Class D GaN FET output stage is complemented by balanced XLR and single-ended RCA inputs, a power supply equipped with premium Mundorf capacitors, ETI Research Kryo speaker binding posts and IsoAcoustics Gaia IV isolation feet.

The next-generation Class D output stage of the Carbon Double Shot Power Amplifier is built around gallium nitride transistors. Compared with conventional silicon-based MOSFETs, GaN FET technology enables faster switching that more closely approaches the theoretical ideal, supporting high linearity, low distortion and reduced electromagnetic interference.

JAVA GaN modules operate in a closed control loop at a switching frequency between 400 and 500 kHz. Selected through laboratory measurements and listening tests, this range provides a balanced combination of efficiency, stability and sound quality, while the power amplifier delivers 400 W per channel into an 8 Ω load.

The power amplifier features one pair of balanced XLR inputs and one pair of single-ended RCA inputs, allowing it to be integrated with preamplifiers and variable-output source components using either connection type.

The RCA inputs use ETI Research Silver sockets to provide a stable, low-loss signal connection. Input impedance is 100 kΩ through the balanced connection and 47 kΩ through the single-ended connection.

The balanced XLR input is particularly advantageous when using longer interconnects or fully balanced preamplifiers, while the RCA input provides direct compatibility with conventional single-ended hi-fi systems.

A defining feature of the Carbon Series is its 9 mm-thick solid carbon-fibre outer chassis. Carbon fibre’s favourable vibration-damping properties reduce the effect of mechanical disturbances on sensitive audio circuitry.

The chassis shielding reduces radio-frequency and electromagnetic interference entering the unit. Its rigid construction provides a stable mechanical environment for the high-power output stage.

The carbon-fibre outer chassis is complemented by an 8 mm-thick black anodised aluminium front panel. This mechanical construction protects the internal components, improves durability and maintains the consistent visual identity of the Carbon Series.

The upgraded power supply of the Carbon Series uses premium Mundorf capacitors. Its larger power supply and substantial current-delivery capability support the stable operation of the 400 W GaN FET power stage and the control of low-impedance loudspeakers.

The audio circuitry is mounted on an inverted printed circuit board. This structural solution reduces the effect of mechanical vibration and resonance on the circuitry.

The signal-conducting elements of the Carbon Double Shot Power Amplifier’s ETI Research Kryo speaker binding posts are made from silver-plated tellurium copper. Their CNC-machined design retains the cross-sectional area required for high speaker currents while aiming to minimise resistance, inductance and capacitance, providing a stable, low-loss connection between the amplifier and speaker cable.

The connectors undergo cryogenic treatment to stabilise the material structure and reduce internal stresses remaining from the manufacturing process. The mechanically damped outer housing and insulating polymer structure provide secure cable retention, while the binding posts accept banana plugs, spade connectors and bare speaker wire.

The chassis rests on IsoAcoustics Gaia IV isolation feet. These mechanically isolate the power amplifier from the equipment rack or furniture, reducing the transmission of environmental vibration to the chassis and internal circuitry.

The 16.1 kg unit measures 440 mm wide, 415 mm deep and 130 mm high. Its wide, low-profile chassis provides stable placement, while the carbon-fibre enclosure and black aluminium front panel visually reflect its technical construction.