Product Introduction

LM-212 Premium is a flagship split-chassis single-ended Class A vacuum tube Integrated amplifier. Its true dual-chassis design isolates the tube amplification circuitry from the transformer-based rectification and filtering power supply, effectively eliminating crosstalk and lowering the noise floor. Entirely hand-built with meticulous point-to-point wiring, it delivers premium build quality and refined craftsmanship.

Its amplification chain features two 12AX7 tubes for voltage gain, two KT88 tubes as dedicated drivers, and two 212 power triodes delivering pure Class-A 

single-ended output with dimensional, effortless drive. Equipped with wide-bandwidth EI output transformers and power transformers wound on imported Z11 

cores, it provides stable, low-noise power with ample dynamic headroom. Boasting a self-bias architecture for easy maintenance, a Japanese ALPS 

audio-grade potentiometer, dual-needle output level meter, plug-in tube cover, remote control, and multi-layer startup protection, it delivers supple, 

expansive sound with excellent dynamic performance, perfectly suited for all musical genres.

- High-quality wide-bandwidth EI output transformers deliver extended frequency response and stable performance.

- Hand made construction with finest point to point wiring

- Two high-grade EI single-ended output transformers: Built with premium, wide-bandwidth construction and advanced finishing for extended highs and authoritative lows.

- Four power transformers wound on imported Z11 cores (133 × 70): High-capacity iron ensures a stable, low-noise supply with ample dynamic headroom.

- Pre-amplifier and driver stages: Two 12AX7 tubes for voltage gain and two KT88 tubes as dedicated drivers.

- Class-A single-ended power stage: Two 212 power triodes deliver pure, dimensional drive with effortless scale.

- Volume and mute function remote control Soft start High-Voltage Delay and Power on mute delay(30 sec) for safer startup and speaker protection.

- A Japanese ALPS audio grade volume potentiometer is applied.

- Handy plug-in type tube cover.

- Premium dual-needle output level meter

- Self-bias architecture:Automatic biasing for consistent performance, tube stability, and easy maintenance.

- Unique separate power-supply system: A true two-chassis design: one chassis houses the tube amplification circuitry; the other contains the transformers and primary 

  power processing (rectification and filtering) to reduce interference and lower the noise floor.

- Supple, expansive sonics: Exceptionally fine micro and macro dynamic expression with airy extension and natural warmth—equally at home across all musical genres.

Specification

Tube Complement: 212*2, KT88*2, 12AX7*2                              

Power output: 50W+50W (Class A Single Ended)

Frequency response: 20Hz~35kHz                               S/N Ratio: 86dB

Input Sensitivity: 150mV                                                Input Impedance: 100kΩ 

Output Impedance: 4Ω, 8Ω, 16Ω                                   Power Consumption: 750W                                        THD: 5%                                                                        Net Weight: 135.75kg

Dimension (W×D×H): (500 x 610 x 555) mm