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LM-845 Premium


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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 used with most existing reference speakers.

Available on back-order

SKU: LM-845P Category:


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 as drivers, the 310A and Shuguang 12AX7 in pre-amplification.

There are two user bias controls for the 300B and 845 valves. Bias adjustment is made easy with two meters on the front plate to allow you to monitor bias and make adjustments. A negative feedback switch is on the front plate so you can choose between two levels of NFB to enjoy the different styles of sound output.

The LM-845 Premium uses 8 transformers for power supply, filtering, coupling and output.

Some Highlights
– Single-ended design
– Class A amplifier
– Point-to-point wiring
– High quality components

Tubes used in this amplifier
Input stage: 2x 12AX7, 2x 310A
Drivers: 2x 300B
Power stage: 2x 845

Hand-made construction with the finest point-to-point wiring
SoftStart and time-delay circuit – 30 seconds
Specially designed EI transformer for power supply
Two EI output transformers with wide bandwidth
ALPS volume control and Realcap capacitors
Metal and removable tube guard cage
Infrared Remote control

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

Class A amplifier – 2x30W RMS
THD: 1% (1kHz)
Signal/Noise ratio: 87dB
Frequency Response  (-1.5dB): 10 – 50,000 Hz
Sensitivity: 220 mV
Input Impedance: 100kΩ
Load impedance: 4/8/16Ω

3x Line inputs RCA (pair)
1x Pre-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

Dimensions (W x H x D)
Amplifier unit: 435 x 460 x 456 mm
Output unit: 435 x 160 x 456 mm
Total dimensions: 435 x 620 x 456 mm
Total Weight: 62 Kg
Finish: Black

Additional information

Weight 63 kg
Dimensions 61 × 62.5 × 83.5 cm


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