LM-845 Premium - Vacuum tube integrated amplifier - Single Ended 845 - 2x30W

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The LM-845 Premium amplifier uses 845 triode tubes mounted in single-ended and operating in pure Class A. It delivers a power of 2x30W.

Finish:

Description

Press - Magazine Haute-Fidélité N°229 - December 2017 - "les saveurs du réalisme". Read the French article in PDF.

 

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)!
 

Hightlights

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

TUBES
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.

Metal and removable tube guard cage
Infrared Remote control

 

 

 

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

 

Specifications
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

Connectors
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

Generality
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

Finish: Black 

 

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02-LM-845Premium-B-Rear-1000x1000web
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