SMSL Audio H200 Headphone Amplifier

This product is available to pre-order with an ETA of approx. late September.

5W Fully-Balanced Headphone Amplifier
The SMSL H200 is a high-resolution fully-balanced headphone amplifier and preamplifier designed for the most demanding headphone systems and desktop audio. Built around a discrete PLFC+ amplifier circuit, a custom toroidal linear power supply, and a precision CNC-machined aluminum chassis, the H200 delivers powerful output, exceptionally low distortion, and flexible connectivity. Balanced and unbalanced inputs, selectable gain levels, balanced and single-ended headphone outputs, and dedicated preamp outputs make it equally comfortable driving headphones or serving as the centerpiece of an active speaker system.

Discrete Fully-Balanced Amplifier Architecture
The H200 uses a fully-balanced discrete-component PLFC+ circuit instead of a conventional integrated amplifier solution. Carefully selected discrete components maintain a true balanced signal path from input to output, helping reduce common-mode interference while preserving dynamics, tonal texture, and low-level detail. Relay-controlled volume adjustment further improves channel consistency across the volume range.

High Output Power for a Wide Range of Headphones
With up to 5 watts into 32 ohms through the balanced output, the H200 provides ample power for everything from sensitive in-ear monitors to demanding planar magnetic and high-impedance dynamic headphones. Three selectable gain settings allow output to be matched to the connected headphones, reducing background noise with efficient models while maintaining the voltage swing required for more difficult loads.

Linear Power Supply with Custom Toroidal Transformer
A custom toroidal transformer and dedicated linear power supply separately feed the analog and digital sections to minimize interference. Carefully selected low-temperature-drift components help maintain consistent performance, while integrated DC, over-voltage, and over-current protection circuits safeguard both the amplifier and connected headphones.

Precision-Built Aluminum Chassis
The H200 is machined from a single block of aluminum using one-piece CNC manufacturing. The rigid, gapless enclosure minimizes unwanted mechanical resonance while providing a clean industrial appearance. Measuring just 7.87 x 6.89 x 1.89 inches (200 x 175 x 47.9 mm), it occupies minimal desktop space without sacrificing connectivity or performance.

Measured Low Noise and distortion
The amplifier achieves an exceptionally low THD+N of just 0.00007% with a measured 131 dB signal-to-noise ratio and 131 dB dynamic range. A wide frequency response extending from 20 Hz to 100 kHz (-0.5 dB) preserves the bandwidth of high-resolution recordings while maintaining excellent linearity across the audible spectrum.

Headphone Amplifier and Desktop Preamplifier
The H200 functions as both a dedicated headphone amplifier and a high-quality desktop preamplifier. Balanced XLR and RCA inputs allow connection to a variety of source components, while balanced XLR and RCA preamp outputs make it easy to integrate active speakers or a separate power amplifier into a desktop or two-channel audio system.

Color IPS display and intuitive controls
A tempered-glass-covered full-laminated IPS display presents input selection, gain status, operating mode, and volume with excellent clarity. The front panel combines the display with a precision-machined volume control and both 4.4mm balanced and 6.35mm single-ended headphone outputs for convenient everyday operation.