Audio Database

L-101
Commentary

Pre-main amplifier of Brid series which adopted Duo β circuit.

The Duo β circuit is a technology that first enhances the bare characteristics of the amplifier by simplifying the amplification stage, and then tunes the amplifier by applying an appropriate amount of NFB. It is a system that is simple and easy to bring out the goodness of the material.

NF type is used for tone control.

Built-in equalizer amplifier for MM and MC types.

Model Rating
Type Stereo pre-main amplifier
Rated output 68W + 68W (8 ω, 1 kHz)
Total harmonic distortion factor Not more than 0.008%
Frequency characteristic 10 Hz to 100 kHz, within -3dB
Input Sensitivity / Impedance Phono MM : 2.0mV/50k Ω
Phono MC : 300 μ V/100 Ω
CD, Tuner, AV/AUX : 180mV/40k Ω
S/N ratio (A-curve correction) Phono MM:90dB
Phono MC:67dB
CD, Tuner, AV/AUX : 105 dB
Power supply voltage 100 VAC, 50Hz/60Hz
External dimensions Width 453x Height 138x Depth 315 mm
Weight 8.3kg