The JAVA Hi-Fi Carbon Single Shot 200 combines an LDR-based preamplifier and GaN FET power amplifier within a single enclosure. Its single-ended RCA signal path provides direct signal transmission and a rated output of 200 W per channel for demanding stereo systems.

In addition to line-level sources, the amplifier features an 18-bit NOS R-2R DAC based on the Analog Devices AD1865, an MM phono stage and Bluetooth aptX connectivity. A headphone output, variable-level RCA output and remote control for volume and source selection provide flexible system integration.

The Carbon Single Shot 200 features a next-generation Class D output stage 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 within a closed feedback loop at a switching frequency of 400–500 kHz. Selected through laboratory measurements and listening tests, this range provides a balanced combination of efficiency, stability and sound quality, while the amplifier delivers a rated output of 200 W per channel into an 8 Ω load.

Instead of a conventional potentiometer, the preamplifier stage uses light-dependent resistors, or LDRs, to control volume. The control current adjusts the brightness of an internal LED, while the resulting light intensity changes the resistance to set the signal level.

JAVA’s proprietary LDR circuit separates the audio signal path from the control electronics and employs contactless input switching. With no metal or carbon wiper of the type found in conventional volume controls placed in the signal path, the sensitive analogue signal can follow a short and direct route.

The design uses NSL32SR3 LDRs. The passive preamplifier stage provides precise volume control without introducing an active gain component, while both volume and input source selection can be operated remotely.

The Single Shot configuration employs a single-ended RCA signal path. Two pairs of line-level RCA inputs accommodate two analogue sources, while the variable-level RCA output can be used to connect an external power amplifier or active subwoofer.

The Carbon Single Shot 200 uses ETI Research Silver sockets for its line-level and MM phono RCA connections. These high-conductivity connectors provide a stable, low-loss connection while maintaining a short and direct signal path between the LDR preamplifier and GaN FET power stage.

This configuration is designed for stereo systems built around RCA-connected sources that require a rated output of 200 W per channel.

The built-in USB DAC is an 18-bit, non-oversampling (NOS) R-2R converter based on the Analog Devices AD1865 and supports files with sampling rates up to 768 kHz. Its resistor-ladder architecture performs direct digital-to-analogue conversion without oversampling.

The DAC is powered by its own linear voltage regulator, while the AD1865’s native MSB adjustment improves linearity, particularly around the zero-crossing point. Digital playback is complemented by an MM phono stage fitted with an ETI Research Silver RCA socket, Bluetooth aptX connectivity and a dedicated headphone output.

A defining feature of the Carbon range is its 9 mm-thick solid carbon-fibre outer enclosure. The favourable vibration-damping properties of carbon fibre reduce the effect of mechanical interference on sensitive audio circuitry.

The enclosure’s shielding helps reduce radio-frequency and electromagnetic interference entering the amplifier. This is particularly important around preamplifier and phono circuits that handle low-level analogue signals.

The carbon-fibre outer enclosure is complemented by an 8 mm-thick black anodised aluminium front panel. The mechanical design protects the sensitive internal components, improves durability and establishes the cohesive appearance of the Carbon range.

The Carbon range features an upgraded power supply incorporating premium Mundorf capacitors. These high-quality components support stable power delivery to the GaN FET power stage and consistent operation of both amplifier channels.

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

The signal-conducting elements in the Carbon Single Shot 200’s ETI Research Kryo speaker binding posts are made from silver-plated tellurium copper. The CNC-machined design retains the cross-sectional area required for high-current loads while keeping resistance, inductance and capacitance low to provide 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; the binding posts accept banana plugs, spade connectors and bare speaker cable.

The enclosure rests on IsoAcoustics Gaia IV vibration-isolation feet. These mechanically decouple the amplifier from the equipment rack or furniture and reduce the transmission of environmental vibrations to the enclosure and internal circuitry.

Weighing 14.8 kg, the amplifier measures 440 mm wide, 415 mm deep and 130 mm high. Its wide, low-profile enclosure provides stable placement, while the carbon-fibre casework and black aluminium front panel reflect its technical construction through its exterior design.