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Hi-Fi Amplifier > LL1 Signature > LAMM INDUSTRIES INC. |
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The monaural line level preamplifier model LL1 Signature is the ultimate statement of perfection in High-End audio. Just like the ML3 Signature is the best creation of its designer's professional career among the LAMM amplifiers, so is the LL1 Signature among the line-level LAMM preamplifiers. The LL1 Signature has been designed to complement the ML3 Signature amplifier, and this combination in a system represents a "match made in heaven". However, the LL1 Signature will perform magic with any other appropriate power amplifier. This preamplifier features a topology that brings out the most natural sound performance in the audio path. In principle, it is a single-stage unit that basically represents the shortest possible signal path. The preamplifier contains four very linear low impedance triodes paralleled into a single inverting gain stage. The LL1 Signature employs a pure single-ended class A operation, with no overall feedback applied. Also featured are specially selected high-transconductance dual triodes 6N30P-DR/ 6?30?-?? (original) in the signal path and TKD stepped potentiometers for volume control - the best available on today's market. The preamplifier's audibly neutral power supply features a full-wave vacuum rectifier. This rectifier, together with a choke- containing filter, allows to practically get rid of the hum and buzz and, in the end, to ensure the verity of dynamic range without coloration. Two solid-state analog voltage regulators supply dc voltage to the tube filaments (heaters). Other features include 3 inputs, one tape/HT processor loop, attenuator (-12 dB) switch, output 1/output 2 switches, protection circuitry designed to enable manual muting of the output signal, and built-in remote on/off for LAMM power amplifiers.
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