The LM-150IA uses for its power stage 4x KT150 polarized class AB and delivering a power of 2x100W RMS.  

Tubes we choose are Shuguang 12AX7, Shuguang 12AU7, Electro Harmonix 6SN7 and Tung-sol KT150. No matter it is the Pre-stage or power stage of tubes we select and choose the best matching ones to use same unit of amplifier to get the best sound quality out of it.

Different from other inputs Pre-In offers you a possibility to connect to some other Preamplifier so that you can the LM-150IA as a power amplifier. User bias control has been used for bias adjustement including 2 vu-meters.


  • High-end design
  • Point-to-point wiring
  • High quality components
  • High power
  • Input stage: 2x 12AX7
  • Rectifier: 1x 12AU7
  • Drivers: 2x 6SN7 (Electro Harmonix)
  • Power stage: 4x KT150 (Tung-sol)


  • Hand-made construction with the finest point-to-point wiring
  • Bias control is accessible on top of the amplifier panel with true ampere meter.
  • Analog Inputs: 3 line inputs, 1 by-pass input
  • Load impedance: 4/8/16Ω
  • 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.
  • Metal and removable tube guard cage
  • Infrared Remote control
  • Class AB amplifier
  • THD: 1% (1kHz)
  • Signal/Noise ratio: 87dB (Weighted A)
  • Frequency response (-1.5dB): 10 - 50.000 Hz
  • Sensitivity: 220 mV (Mode intégré)
  • Input impedance: 100kΩ
  • Load impedance for HP to connect: 4/8/16Ω


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


Tubes Basics | Common Replacements

12AX7 | 12AX7EH, ECC83, E83CC, CV4004, ECC803, 5751
12AU7 | ECC82, 12AU7EH, 5814, 6189, CV4003
6SN7 | 6NP8, 6H8C, 6H8M, 6F8G, CV181, QB65, ECC32


Included Accessories
2x Fuses
1x Remote control
1x Detachable power cord
1x Manual

Dimensions (L x H x P): 430 x 217 x 355 mm
Weight: 32.5 Kg