ALPINE/LUXMAN LE-109

Commentary

An equalizer amplifier designed for higher sound quality based on the concept of phono separation, in which phono amplifiers are made independent.

A twin mono circuit, which is independent of the power transformer on the left and right sides, eliminates interference when the power supply of the left and right channels is shared.

There are two input terminals, each of which is composed of independent phono amplifiers.
The Phono1 input is dedicated to the MC cartridge and the Phono2 is an amplifier for both MC and MM.
Gold-plated terminals are used to prevent deterioration of sound quality at the contact point.

It uses an MC straight circuit and is designed to be connected directly from the MC cartridge to the amplifier by removing the selector and switching function. The amplifier circuit also uses a high-gain equalizer that can simplify the signal path.

A low-noise, high-Gm JFET is used in the first stage of the amplifier circuit to achieve a high S/N ratio and a balanced PP drive circuit with excellent linearity to achieve a low distortion factor.

It is equipped with 3-stage gain switching, 3-stage impedance switching and 2-stage attenuator so that it can cope with various cartridges.

Uses S. T. A. R. circuit which does not share power supply line or ground line in power circuit or signal circuit.
By eliminating the shared impedance of each circuit, the S/N of the auditory sense is improved.

Model Rating

Type	Phono amplifier
Rated output	150mV
Harmonic distortion factor	0.005% at 1 kHz, 1 V Output
Input sensitivity	Phono1: Phono2: 160 μ V 2.5mV(0dB) 220 μ V (20 dB) 80 μ V (32 dB)
Input impedance	Phono1: Phono2: 100 Ω 47k Ω 3 Ω, 40 Ω, 100 Ω (MC)
Signal-to-noise ratio (IHF)	Phono MM : 95 dB (1 V output) Phono MC Straight : 80 dB (1 V output)
Frequency characteristic	20 Hz to 20 kHz
Crosstalk	85dB
Pwer	100 VAC, 50Hz/60Hz
Power consumption	25W
External dimensions	Width 438x Height 63x Depth 310 mm
Weight	4.5kg