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Lab 12 integre4 Mk2 – Toroid Version
The best just got even better… 65 Watt per channel lift the audio experience one step higher…
The newly upgraded integre4 MK2-Toroid Version increases the limits of this already exceptional amplifier even further.
True Dual Mono design with two separate high current, low-noise, heavy toroidal transformers and fully upgraded dual power supply stages, taking full advantage of the powerful KT-150 power tubes and lower the noise floor to an unbelievable level for a tube-based integrated amplifier.
Integre4 MK2-Toroid Version can be the ideal driver for even the most demanding speakers out there.
Our innovative bias built-in system, through a powerful processor and vivid OLED display, is here to give pleasure of the easiest way of tube rolling ability and sound tuning according to your personal taste. No extra equipment or technical knowledge is required. Direct Anode current indication and instant setting directly from the face panel.
An exceptional headphone circuit that fully engages the upgraded power transformers, offers you all the advantages of tube amplification in private with any kind of headphones.
An optional tube cage for increased safety and different aesthetic approach of your amplifier is available to obtain.
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Professional Reviews 90/100
Nicely Roasted
Sound Quality
89/100
Build Quality
90/100
Features Connectivity
85/100
Value for Money
94/100
The Lab 12 integre4 Mk2 – Toroid Version pairs authoritative dynamics with deep, controlled bass and a warmly dimensional tube presentation. SoundStage Solo highlighted its muscular rhythmic drive, while Part Time Audiophile admired its huge yet detailed sound. Flexible tube rolling, straightforward OLED biasing and a serious headphone stage make this a particularly engaging all-in-one valve amplifier.
What Reviewers Are Saying
Pros
Delivers exceptional macrodynamic impact, strong rhythmic flow and ample 65Wpc drive for a wide range of speakers.
Bass is powerful, deep and well defined, with convincing punch and control on demanding material.
Tube rolling and bias adjustment are unusually accessible via the OLED display; the headphone circuit is also highly capable.
Substantial, carefully finished construction and strong value were repeatedly noted at its class.
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Cons
Its upper-midrange presence can sound forward or strident with neutral or bright loudspeakers, adding sibilance or glare.
Fine treble air, image vividness and harmonic refinement fall short of more expensive reference amplifiers.
SOUND QUALITY PERFORMANCE 89/100
Reviewers found the Integre4 powerful, engaging and unusually accomplished at combining tube warmth with firm bass and large-scale drive. Its strongest suit is musical momentum and impact, while comments about upper-midrange emphasis and less-than-state-of-the-art refinement keep the presentation from being universally neutral.
Transparency Resolution
88/100
Audiophilia heard excellent low-level retrieval, including quiet hall reverb and subtle differences in instrumental technique, while Part Time Audiophile praised its quiet background and intimate detail. SoundStage Solo was more qualified, finding it less refined and less articulate than a reference rival, with some loss of treble air and fine texture.
Tonal Balance Musicality
87/100
The prevailing character is warm, fulsome and highly involving, with reviewers repeatedly praising natural timbre, tube generosity and an emotionally persuasive presentation. However, SoundStage Solo and Audiophilepure both encountered a forward presence region with certain speakers, which could introduce glare, sibilance or stridency.
Dynamics
94/100
This is a major strength: reviewers describe powerful, authoritative delivery, punchy and exceptionally well-defined bass, and strong large-scale impact. SoundStage Solo said its macrodynamic expressiveness bettered nearly every sub-$6,000 integrated it had heard, while other reviewers found its 65Wpc ample across a wide range of speakers.
Soundstage Imaging
88/100
The Integre4 produces a wide, expansive stage and can render performers with convincing closeness and dimensionality; one reviewer preferred the KT150 configuration for its more three-dimensional presentation. Against the Audio Note comparator, however, images were judged less vivid, so its spaciousness does not always translate into the sharpest image definition.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
90/100
Reviews describe a substantial, well-made amplifier with neatly laid-out boards, high-quality parts, carefully finished surfaces and well-fitted joins. SoundStage Solo specifically noted Wima capacitors, a motorized Alps Blue Velvet control and a regulated supply using high-capacity Nippon Chemi-Con capacitors.
Features Connectivity
85/100
The Integre4 provides five RCA line inputs, an XLR input, a dedicated headphone circuit, and a clear OLED interface with input naming and valve-hour monitoring. Its unusually flexible bias system and compatibility with several output-tube families make it especially appealing to tube rollers, though there is no onboard phono stage, DAC, streaming or digital-input provision.
Value for Money
94/100
At the $4,450-$4,990 pricing cited in the reviews, writers repeatedly viewed it as unusually compelling among similarly priced tube integrated amplifiers. Audiophilia called it a “Big Bang” proposition, while SoundStage Solo said it should top the audition list for shoppers around $5,000 and described it as a no-brainer for tube-amp buyers in that class.
Reviews
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Authorized dealers for Lab 12 integre4 Mk2 – Toroid Version
- 8th Dimension Audio — United Kingdom (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Altitudo Audio — online and in-store — Winnipeg, Manitoba, Canada (website)
- ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
- Audio Ark — online and in-store — Edmonton, Alberta, United States (website)
- Audio Solutions - AU — online and in-store — Mascot, New South Wales, Australia (website)
- Audio Vision San Francisco — online and in-store — San Francisco, California, United States (website)
- Audiocompagniet — online and in-store — Odense C, Denmark (website)
- Can Hifi — in-store — İstanbul, Turkey (website)
- Cm Audio — in-store — Mönchengladbach Ost, Nordrhein-Westfalen, Germany (website)
and 23 more verified dealers