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● Sasha Group LAMM Industries Revise Splash page Asana

ML1 Amplifier

Sold as a set of Two Units (one pair)

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.

Critic Reviews & Press


sphile RC thumb

October 2000 - April 2003

Class A

Class A for tube power amplifiers in the Recommended Components section
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Reviewer Choice logo 1


Reviewers' Choice

Soundstage! Magazine
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January/March 1999


FI Magazine
“4-star” power amplifier category in FI magazine’s Buyer’s Guide to the Best Equipment Vol. 4, issues 1& 3
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Best Of The Year

Audio Art (Taiwan)
Awarded by Editor-in-Chief, Jack Liu
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Golden Ear Award

The Absolute Sound
Awarded by Paul Bolin
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Service & Support

Complementary Equipment

Compatible Discontinued Products:

Only one of the above products is required for a system

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