
hARt Lab Tune Two is a reference level preamplifier featuring a streamer, DAC, phono stage and headphone output. Featuring both tube and MOSFET circuitry, Tune Two achieves a low noise floor and true high-end performance. Its also fully controllable via any modern web browser making this a future facing amp with a modern design aesthetic.

Users can select from 15 available colours for the front illumination to match the aesthetics of the listening space. Illumination can be dimmed over 3 levels or turned off completely.
Simple Unified Management. Tune Two is controlled from any modern web browser running on any device, – smartphone, tablet, laptop etc.
Comes with an infrared remote control for the main functions as standard.
Built-in media player with wireless and ethernet connections, integrated functions and adjustments for digital audio and USB ports for external HDD/USB-stick.
Integrated DAC with coaxial and optical inputs, where the signal is bit-perfect sample rate converted and re-clocked for optimal performance.
High output drive headphone amplifier using a Tube-MOSFET Class-A hybrid design for superb sonics.
Fully configurable Class-A phono stage for MM and MC cartridges. All active discrete circuitry designed for excellent accuracy.
A plethora of analog and digital inputs for maximum convenience and functionality.
Amorphous wooden fiberboard chassis dampens unwanted vibrations and mechanical noise feedback, eliminating crosstalk and resulting in a lower noise floor.
High-end MlCoat painting procedure. An ultra-refined process using multiple coats of paint offering a smooth, scratch resistant surface.
Removable side panels allowing for customisation of appearance by changing colour and/or material.
A fusion of production methods, subtractive manufacturing (CNC) and additive manufacturing (3d-printing), along with a mix of materials (wood, metal, plastic, rubber), allows for stunning looks and unrivalled music playback.
Single Class-A tube amplification stage with 2x CV181 (or equivalent), light polarized and without any feedback, provides excellent linearity and superior sound. Paired with a Class-A tracking buffer forms a hybrid path, which enhances the driving capabilities without compromises, for any power amplifier and interconnecting cables.
Alternative direct tube output for pure signal and ultimate performance.
Battery emulator VAcc with 12 individual, fully separated power supplies for digital audio, analog audio and digital control.
Dual mono audio configuration with GStar single common earth point for total immunity from mains noise and ground loops.
Relay based attenuator SLadd with 64 steps of 1 dB provides constant input impedance and achieves zero tracking error and crosstalk between left and right channels, which results in an exceptional soundstage.
Acrylic back panel with backplane source switching for minimal audio path.
Suspended power supply attachment effectively decouples power transformers from sensitive audio circuitry.
FloatO integrated anti-resonance feet for quieter background and extended sound dimensionality.
| Inputs | 4x line level, 1x phono, 1x media player (with WLAN, LAN and 3 USB ports), 1x digital coaxial, 1x optical |
| Outputs | 1x hybrid, 1x tube direct, 1x headphone 6.35mm TRS |
| Phono Settings | Gain: MM: 40 dB, MC: 66 dB Resistive load: 47 kΩ, 470 Ω, 220, 150, 100, 82, 70, 60 Ω Capacitive load: 100, 250, 330, 430, 480 pF |
| Line Level Gain | 21 dB |
| Frequency Response | 5 Hz – 120 kHz |
| Recommended Load | Hybrid: >16 Ω, Direct: >30 kΩ, Headphones: 16–600 Ω |
| Power Consumption | 2 W standby, 50 W idle |
| Net Dimensions | 200 (with cover) x 430 x 390 mm (HxWxD incl. jacks) |
| Net Weight | 12 kg |
| Shipping Dimensions | 310 x 550 x 490 mm (HxWxD) |
| Shipping Weight | 22 kg |
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