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M1.1 Amplifier

Sold as a set of Two Units (one pair)

Model M1.1 represents top of the line in LAMM hybrid and solid-state audio equipment. It is a pinnacle 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 M1.1 to a threshold of excellence in sound reproduction. A distinctive feature of the M1.1 is its presentation of the extraordinary transparency of perceived sound which, in turn, assures the recreation of a three-dimensional soundstage in the home, recording studio, etc. without boundaries and limitations.

The M1.1 is a masterful blend of design and engineering simplicity. It is a pure class A amplifier featuring high-speed MOS-FET transistors in the output stage with no overall feedback and the special switch-selectable bias/voltage settings for 8- or 4-Ohm operation. The bias setting switch assures the pure class A operation of the M1.1 when matched with a speaker load of either 4 or 8 Ohms, whereas conventional class A designs double the power into 4 Ohms resulting in one fourth of the doubled power in class A and the rest in class AB (learn more about this in FAQ section). The M1.1 is a hybrid design with one specially selected 6922 vacuum triode in the second stage.

The M1.1 is conservatively rated to deliver 100 Watts into 8 and 4 Ohms in pure class A operation, 200 Watts into 2 Ohms, and 300 Watts into 1 Ohm, continuous. The M1.1 can drive any known speaker; the harmonic structure remains intact regardless of the speaker load, while the extreme clarity is maintained at all power levels.

Each amplifier is carefully hand-crafted with matched components of the highest quality, some of which include military graded low noise DALE metal film resistors; PRC wire wound resistors; ELECTROCUBE and ROEDERSTEIN film capacitors; high frequency switching grade CORNELL DUBILIER electrolytic capacitors; BOURNS multiturn potentiometers; military graded low noise long life vacuum tubes; highest quality heavy duty gold-plated binding posts and RCA jacks from ESOTERIC AUDIO; and gold-plated NEUTRIC XLR connectors. 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 M1.1 works on all world AC line voltages without elaborate modification.

U.S. Patent No. D368,261; U.S. Patent No. 5,470,795; other patents pending.

Critic Reviews & Press




Design & Engineering Honors

Consumer Electronics Show
SCES in Chicago, IL (June 1993)
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April 1995 - April 2002

Class A

Class A for solid-state power amplifiers in the Recommended Components section
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1995-96, 1997-98

BestBuy Component

STEREO SOUND Magazine (Japan)
No. 117 winter 1996 and No. 125 Winter 1998
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Reviewers' Choice

Soundstage! Magazine

Service & Support

Complementary Equipment

Compatible Discontinued Products:

Only one of the above products is required for a system

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