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 user to monitor bias with ease. Negative feedback switch is on the front plate that listener can choose between two levels of NFB to enjoy the different sound outputs.
The LM-845 Premium uses 8 transformers – power supply, filtering, coupling and output.
Highlits
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
Main Features
Hand-made construction with the finest point-to-point wiring
Bias control is 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.
Specifications
Class A amplifier – 2x30W RMS
THD: 1% (1kHz)
Signal/Noise ratio: 87dB
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
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
Dimensions
Amplifier unit: 435 x 460 x 456 mm (W x H x D)
Output unit: 435 x 160 x 456 mm (W x H x D)
Total dimensions: 435 x 620 x 456 mm (W x H x D)
Total Weight: 62 Kg