Source: Press Release, Last Accessed: 2025/03/18

Meta Wave held the world premiere of hARt Lab's new integrated amplifier, Tune Six, at the premises of Audio Concept, in Stockholm (Sweden).
After experiencing the Tune Two and Tune Three pre-power amplifier set and seeing the concept builds of the forthcoming Tune Six integrated amplifier for the first time in Munich during the 2024 High-End Audio show, Joel Siljeskog (Meta Wave) reached out to hArt Lab, to collaborate. Further listening in his showroom in Gothenburg (Sweden) convinced him to invest in the new integrated amplifier, model Tune Six, which has been presented for the first time in Stockholm.
hARt Tune Six is the first integrated amplifier from hARt Lab. It incorporates a vacuum tube preamplifier stage, a hybrid (tube/MOSFET) power amplifier stage, a streamer, and a headphone amplifier, with the option to order it with a built-in DAC with Coaxial and Optical inputs as well as a Phono stage with dedicated MM and MC inputs.
Designed by Kostas Trovas (hARt Lab), the Tune Six employs a unique two-stage hybrid circuit that merges the best of tube and solid-state technologies. It delivers extraordinary performance with no feedback-induced timing distortion, no transformers in the signal path, no unnecessary coupling stages, and no fragile power tubes - true to its promise: “Sound without frontiers, tubes without tears.”
Meta Wave is the distributor of hARt Lab for Sweden. It also carries the OePhi cables and loudspeakers from Denmark, with whom hARt Lab organizes a joint appearance at the forthcoming High-End Show 2025 in Munich (Germany).
Audio Concept is Sweden's largest Hi-Fi and high-end store, offering the finest equipment selection. It is located in the center of Stockholm and serves customers all over Sweden.
Robert Grubstad (Audio Concept) said: “The Hart Lab Tune Six, showcased at a recent demo in Stockholm, impressed attendees with its robust build quality and exceptional performance. This integrated amplifier, featuring a hybrid vacuum tube and MOSFET design, delivers music with natural warmth, neutrality, and dynamics. Its ability to handle diverse speaker loads effortlessly makes it a standout choice for audiophiles seeking a reliable and high-quality listening experience. Additionally, the Tune Six offers optional upgrades, including a phono stage, DAC, and streamer. These features transform it into a complete centerpiece for any high-end audio setup, ensuring versatility and long-term satisfaction for serious music enthusiasts.”
You can read our in-depth review for the premplifier Tune Two here and for the power amplifier Tune Three here.

For more information: https://hartlab.gr/

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