89%
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.
Dealers selling Lab 12 near you
Lab 12 integre4 Mk2 – Toroid Version
The Lab12 integre4 Mk2 Toroid pairs tube warmth with uncommon power and control, delivering a warm, three‑dimensional presentation that reviewers found immediately engaging. Praised by Marc Phillips and Oliver Amnuayphol for its musical midrange and strong imaging, the amp combines 65Wpc KT150 power with a regulated toroidal supply for punchy, low‑end authority and excellent macrodynamics. Its front‑panel OLED, easy bias meters and tube‑rolling friendliness make setup and customization straightforward, while the headphone stage uses the power amp for high‑quality headphone listening. Built from quality parts and neatly finished, it suits listeners who want tube character without sacrificing slam—particularly those who enjoy tube‑rolling. Backed by reviewers as a standout value, the integre4 is worth auditioning for anyone seeking a powerful, tuneful tube integrated amp.
Pros
- Warm, musical midrange with three‑dimensional imaging and strong detail retrieval, making vocals and small gestures highly engaging.
- Robust dynamics and headroom—65Wpc with KT150 output delivers impactful bass, macrodynamic punch and the ability to drive most speakers without strain.
- User‑friendly, tube‑rolling friendly features: clear front‑panel OLED and bias meters, easy bias adjustment and a high‑quality headphone stage that uses the power amp.
- Solid build and strong value proposition—well‑finished chassis, quality internal parts and performance that reviewers judged competitive with much pricier rivals.
&
Cons
- Upper‑mid/presence region can be forward on brighter speakers, producing occasional glare or sibilance.
- Limited modern connectivity: reviewers noted the lack of XLR balanced inputs and no built‑in DAC or phono stage, which may require additional components for some systems.
Sound Quality
90/100
Dynamics
90/100
The amp’s KT150-equipped output and regulated supply give it notable macrodynamic punch and headroom for a tube design (SoundStage: "macrodynamics... outperformed nearly every sub-$6000 integrated"). Reviewers repeatedly praise its slam, control and ability to drive speakers to high levels without strain (Part Time Audiophile: "provided plenty of juice"). A small note about timing compared with the very best tube and solid-state designs keeps the score from being higher.
Soundstage Imaging
89/100
Imaging and presence are frequently praised: reviewers mention close, three-dimensional vocal presentation and strong detail (Part Time Audiophile: ability to hear tiny vocal gestures). Soundstage is described as wide and expansive though not as vividly etched as some reference designs (SoundStage: "as wide and as expansive... if with less vivid aural images"). The unit creates compelling holography and focus for most recordings.
Show Less
Build Quality
92/100
Reviewers report high-quality parts and tidy construction (SoundStage: "high-capacity, low-ESR Nippon Chemi-Con caps", Wima caps, motorized Alps pot) and an attractive, well-finished chassis. The toroidal/regulated supply, generous capacitors and neat internal layout support reliable performance and thermal management. Tube-rolling-friendly design and clear bias meters add to perceived craftsmanship.
Features Connectivity
82/100
Baseline feature set is solid with multiple line inputs and convenient front-panel OLED/navigation, plus a very capable headphone stage that uses the power amp (Part Time Audiophile: "That headphone amp turns out to be a beast"). The amp makes tube rolling easy with front-panel bias meters and accepts many output-tube types, but it lacks onboard digital streaming/DAC or phono stage in reviewer descriptions; some reviewers even wished for XLR compatibility. Feature score reflects good practical usability but limited modern digital/connectivity extras.
Value for Money
90/100
Multiple reviewers explicitly praise the price-to-performance (reported street price ~$4.45k–$4.9k) calling it a strong contender in its bracket (Audiophilepure: "costs just $4,450"; SoundStage: "should top your audition list"). Reviewers repeatedly say it delivers joy and performance comparable to much pricier gear, justifying its cost for buyers seeking a powerful, tube-based integrated amp.
Reviews
Online Reviews & Mentions
Forum Mentions
No forum mentions found yet
FAST, EASY & NEAR
Find Lab 12 Verified Dealers Near You
Lab 12 dealers in the map