The LM-845 Premium is the result of many years of research on the 845 triode Single ended design. Thanks to its exceptional design and manufacturing quality, it is fast fast becoming the absolute reference in the high end amplifiers world. 

With a power output of 2x30W, it can be use with most of the existing reference speakers.

The LM-845 Premium is a combination of two units: One is the amplifier unit and the other is output unit.
The LM-845 Premium uses Shuguang 300B tubes in drivers, the 310A for amplifier and Shuguang 12AX7 in pre-amplification. 

There are two user bias controls for 300B and 845 have been used for bias adjustment and two meters has been added to the front plate to allow you to monitor bias with ease. Negative feedback switch is on the front plate that you can choose betweeen two levels of NFB to enjoy the different sound outputs.  

The LM-845 Premium uses 8 transformers (power supply, filtering, coupling and output)!


  • Single-ended design
  • Class A amplifier
  • Point-to-point wiring
  • High quality components


  • Input stage: 2x 12AX7
  • Drivers: 2x 300B, 2x 310A
  • Power stage: 2x 845 « single-ended »


  • Hand-made construction with the finest point-to-point wiring
  • Bias control is accessible on top of the amplifier panel with true ampere meter.
  • SoftStart and time-delay circuit. (30 seconds)
  • Specially designed EI transformer for power supply
  • Two EI output transformers with wide bandwidth are applied
  • ALPS volume control and Realcap capacitors are applied.

Press - Magazine Haute-Fidélité N°229 - December 2017 - "les saveurs du réalisme". - Read the French article in PDF
Test bench by hifi-advice.com - View article

  • Class A amplifier - 2x30W RMS
  • THD: 1% (1kHz)
  • Signal/Noise ratio: 87dB (Pondéré A)
  • Frequency Response (-1.5dB): 10 - 50.000 Hz
  • Sensitivity: 220 mV (Built-in Mode)
  • Input Impedance: 100kΩ
  • Load impedance for HP to connect: 4/8/16Ω


Tubes Basics | Common Remplacements
12AX7 | 12AX7EH, ECC83, E83CC, CV4004, ECC803, 5751
300B | 300A, 4300B
845 | 845 A/B/C
310A | Soviet Union/om12C, WE310A

3x Line inputs RCA (pair)
1x Pré-in input
2x Screw terminals compatible with banana plugs

Included Accessories
2x Fuses
1x Remote control
1x Detachable power cord
1x Dedicated cable used to interconnect main amplifier unit to output unit
1x Manual

Dimensions (W x H x D): Amplifier unit: 435 x 460 x 456 mm
Dimensions (W x H x D): Output unit: 435 x 160 x 456 mm

Total dimensions: 435 x 620 x 456 mm
Total Weight: 62 Kg