90W monaural power amplifier model ML1 represents a new generation of power amplifiers employing unique high current low impedance power vacuum tube triodes (6C33C) in the output stage. Implementation of these triodes has allowed to create an output transformer with a very low turns ratio and, as a consequence, extended (as compared even to the most advanced modern vacuum tube amplifiers) frequency decade factor, as well as dramatically reduced leakage inductance.

The ML1 topology had been chosen to bring out the most natural sound performance in the audio path. Special aspects of the design enable the ML1 to recreate a three-dimensional soundstage without boundaries and limitations while maintaining the extraordinary transparency of perceived sound.

A custom-designed output transformer, along with a unique output stage, allow the ML1 to drive any real world speakers while maintaining proper harmonic structure and integrity of the amplified signal for all load conditions. Two meters, situated to allow an easy access to monitoring the functioning of the ML1, permit the user to control the output stage operation and simplify the replacement, if need be, of the output tubes.

In conceiving and executing an overall design of the ML1, the goal was to utilize the modern technology and processes while recreating a look reminiscent of the long-gone genuine vacuum tube era. Each amplifier is carefully constructed and handcrafted of the finest materials and world class parts, some of which include military graded low noise DALE metal film resistors; CADDOCK power film resistors; PRC wire wound resistors; BOURNS multiturn potentiometers; ELECTROCUBE and ROEDERSTEIN film capacitors; high frequency switching grade CORNELL DUBILIER and UNITED CHEMI-CON electrolytic capacitors; HAMMOND chokes; gold-plated NEUTRIC XLR connectors; and military graded low noise long life vacuum tubes. Special attention was given to designing the toroidal power transformer, which has no mechanical contact with either the transformer cover or the chassiis, and is suspended in a special encapsulant which almost completely absorbs even the residual mechanical vibrations. This plays a significant role in assuring the absolutely unique clarity and microresolution during sound reproduction.

The ML1 works on all world AC line voltages without elaborate modification.

U.S. Patent pending.