“The LAB12 integre4 Mk2 Toroid Version is a 65-watt-per-channel push-pull integrated amplifier built around a quad of KT150 power tubes, and it is not the amplifier its category leads you to expect. This is not a romantic valve amplifier. There is no golden haze, no soft focus, no bass line that turns into a suggestion when the music gets difficult. What it does instead is considerably harder: it keeps the tonal density and liquid, continuous midrange that make people love valves in the first place, then adds dynamics, grip, and micro-detail that would not embarrass a good transistor amplifier at the same price.

Its greatest achievement is control. True dual mono, with two separate toroidal power transformers and fully independent supply stages, gives it a noise floor I did not expect from a tube integrated and an authority that never sags when both channels are working hard. It drove everything without reaching, and it simply got louder when asked.

Its second achievement is one you will use every week rather than admire once. The built-in bias system, with direct anode current on the OLED and four trimmers under the screen, turns the worst chore in valve ownership into a pleasure. The KT150 window runs from 38 to 45 mA, and LAB12 leaves the choice to you, which means you can genuinely voice this amplifier to your own room in an evening with a screwdriver. The compatibility list runs from EL34 through 6550, KT88, and KT120, so the tube rolling is real, not theoretical.

It is hand-built in Athens, component by component and joint by joint, with its own tubes matched and numbered to its own sockets, and it carries a five-year warranty”.

“It leaves with our Highly Impressive Award, and it leaves reluctantly”.

-Catalin Cristescu

“I doubt it’s easy to find another DAC in this price range that sounds as vibrant, controlled, and naturally convincing at the same time. The LAB12 DAC1 Reference has changed my perspective on DAC topology and the price of digital sources.

It reminded me that digital audio isn’t just about chips, formats, and measurements. It’s also about implementation, balance, and the ability to present music believably.”

–Stefan Oltman

“…And even before we start talking about the music examples, I just have to say it like it is: Lab 12 Melto 2 is a firework of an RIAA stage!”

“The ease of use in combination with sound quality is still quite unique, and notice how good this stage is on moving magnet, here I actually can’t think of any RIAA’s that have grabbed me harder…”.

-Haakon Rognlien

“My biggest discovery

The biggest news this month was not the Tzar’s torque. It was the Lab12 Melto2’s ability to coax the tiniest, most delicate subtleties from every cartridge I tried. It put the Tzar in a tuxedo.

It made the Ortofon 2M Black LVB 250 moving magnet sound like a top-shelf moving coil. It made the Nagaoka MP-200 sound like a Koetsu. It forced all my other phono stages to hide under the bed. At the moment, I can think of no phono stage I’d rather use than the Lab12 Melto2. Bravo, Stratos Vichos.”

-Herb Reichert

“Lab12 presents an improved version of its tube integrated amplifier, now featuring a power supply with two toroidal transformers. Its beautiful anodized finish reflects a blend of tradition and modernity, echoed by the display that monitors the pulse of the electronics, at the heart of a sound reproduction that champions authenticity”.

“This Lab12 will appeal to tube-amplifier enthusiasts who may be intimidated by the technology, thanks to its ease of adjustment and five-year warranty, but also through its personality, which avoids the usual downsides of tube designs.

The Integre4 emphasizes detail, melodic clarity, and a lively, precise character—free of vagueness, even in the bass…”.

-Bruno Castelluzzo

We are proud to announce that Mighty has been selected for Editor’s Choice 2025 by HiFiClube, receiving the Low-Power SET Amplifier Award.

This award recognises Mighty’s design approach and its ability to deliver an emotionally engaging and musically accurate performance from the very first watt.

“The INTEGRE 4 MK2 tube integrated amplifier is undoubtedly an exceptionally talented cornerstone of an audio setup, with which the other connected components will cooperate with great joy and gratitude.

Its solid, rich and lively expression with the elegance of a tube character and genre, but also technical versatility will give them the opportunity to develop their abilities to the maximum, and that is what building an audio chain is ultimately always about.”

– Viktor Kubal