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LAB 12 Integre4 MKII Toroid Version
Reference tube integrated amplifier.
Power: 2x65W with KT150 tubes
Dual toroidal transformers: higher current delivery and lower noise
Dual Mono design: completely independent channels
Intelligent bias control: automatic adjustment and OLED display
Premium headphone output: powered by the same transformers
Compatible with EL34, 6550, KT88, KT120, KT150 tubes
Inputs: 5 RCA + 1 XLR
Audiophile components: ALPS Blue Velvet, feedback-free
Frequency response: 15 Hz – 70 kHz
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Lab12 Integre4 MK2 Toroid Version. Amplified Excellence in Tube Amplification
The new Integre4 MK2 Toroid Version takes this already exceptional integrated tube amplifier to new heights, delivering 65 watts per channel and a sound experience that redefines what’s possible in its class.
Thanks to a genuine dual-mono architecture with two low-noise, high-current toroidal transformers and completely redesigned power supply stages, this version extracts the full potential of its powerful KT150 output tubes, achieving an impressively low noise floor for a tube-based amplifier.
With effortless control over even the most demanding loudspeakers, the Integre4 MK2 Toroid is the ideal centerpiece for any high-end Hi-Fi system.
Intelligent Bias Control
The automated bias system, managed by a powerful processor and an OLED display, allows tube replacement and calibration without external tools or technical expertise. It displays real-time anode current and enables direct front-panel adjustments—letting you fine-tune the amplifier’s character safely and easily to suit your preferences.
High-End Headphone Amplification
The Integre4 MK2 Toroid includes a high-quality headphone output powered by the same toroidal transformers, delivering the full richness and warmth of tube amplification for private listening, and supporting a wide range of headphones with ease.
Elite Design and Craftsmanship
Compatible with EL34, 6550, KT88, KT120, and KT150 tubes (KT150 standard)
Dual high-performance toroidal transformers
Included remote control
Large OLED display
Motorized ALPS Blue Velvet volume control
Smart protection system with integrated bias management
Zero negative feedback design
Proprietary SRSG® and Fine Symmetry® technologies
Enhanced shielding and low-interference chassis
Upgraded output transformers
Redesigned dual mono topology
5 mm solid aluminum front panel
Backed by a 5-year warranty
Technical Specifications
Power supply: 230V 50Hz (115V 60Hz optional)
Max power consumption: 350 VA
Output power: 65 W per channel
Frequency response: 15 Hz – 70 kHz (-1 dB)
Input impedance: 50 kΩ
Recommended speaker impedance: 4–8 ohms
Tube complement: 4× 6n1p (dual triodes), 4× KT150 (power pentodes)
Inputs: 5× stereo RCA, 1× stereo XLR (unbalanced)
Finish options: Matte Black or Avus Silver
Dimensions (W × H × D): 42 × 22 × 38 cm
Weight: 22 kg
Optional tube cage available for added safety and aesthetic appeal
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