L2 HYBRID LINE LEVEL PREAMPLIFIER

LAMM Audio
  • 详细说明
  • 产品参数

Model L2 Reference represents top of the line in LAMM hybrid and solid-state audio equipment. It is one of the best creations of its designer's professional career--a result of years of intensive research directed at attaining the most accurate reproduction of recorded music. Unique topology and application of the most advanced technological resources and processes bring the L2 near the threshold of excellence in sound reproduction. A main distinction of the L2 from any other comparable type of preamplifiers is its almost inaudible sonic signature. When connected to an appropriate type of power amplifiers, and especially LAMM amplifiers, it assures the extraordinary transparency of perceived sound and recreation of a three-dimensional soundstage in the home, recording studio, etc., without boundaries and limitations.

The L2 features a topology that brings out the most natural sound performance in the audio path, as well as graceful and sophisticated design. Its unique circuitry utilizing specially selected super-linear high voltage MOS-FET transistors ensures a class A operation from input to output, with no overall feedback at any stage. All stages, including high current output buffers, are single-ended. A unique electronic protection circuit enables manual muting of the outputs until the preamplifier has stabilized after a turn-on; it also enables functioning of the preamplifier in a "muting" mode during operation and automatic switching to muting in case the AC line voltage drops or is interrupted. Other features include 3 inputs; 1 tape loop; output signal phase switch; balanced and single-ended outputs; and built-in remote on/off for LAMM power amplifiers.

技术规格

输出电压:0.75V(RMS)

电压增益:5.54(+2%)、14.87(+0.2dB)

频率响应:(-0.2dB)20Hz-20KHz、(-3dB)5Hz-140KHz

转换速率:30V/ms

上升速率:1ms

总谐波失真(20Hz-20kHz):<0.03%(2V)、<1%(60V)

输入灵敏度:0.135V(RMS±2%)

输入阻抗:51KOhms

输出阻抗:130Ohms

信噪比:≥82dB

耗电:95W

工厂老化:72小时

建议系统老化:200小时

热机:45分钟

体积(HWD):4.5×19×13.875+1.375挽手(英寸)

重量:7Kg(主机)、8.63Kg(电源)

使用电子管:12AX7/ECC83×1、6C19P×1、5651A×1、12AX3×2

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