40 years ago, back in 1981, Dave Wilson, Wilson Audio’s co-founder (along with his wife Sheryl Lee), sketched out what was to become the American brand’s first speaker, and one that divided opinions around the world, the Wilson Audio WAMM.

Now, Wilson Audio has released these original 1981 sketches, which you can see below.

Wilson Audio Release Original WAMM Sketches

Dave Wilson with the Wilson Audio WAMM

Wilson Audio WAMM

The Wilson Audio Modular Monitor (WAMM) was Dave Wilson’s first Loudspeaker. Many considered it a statement product, but Dave’s original focus was to find, and ultimately create the ideal reference tool that can be tuned and configured to the environment.

Wilson Audio Release Original WAMM Sketches

Dave Wilson’s original sketches for the Wilson Audio WAMM from 1981

One WAMM channel consists of two 6½’ towers. One contains subwoofers that operate below 55Hz. The other is a set of full-range arrays. The lower portion is the midbass module. Above this, is a machined unit consisting of two midrange modules, one placed below and one above an electrostatic high-frequency module.  The system also includes an electronic crossover and an equaliser.

Wilson Audio Release Original WAMM Sketches

Original Wilson Audio WAMM sketch by Dave Wilson

WAMM Series 1 Original Technical Specifications

Released: 1981   Retired: 1982


Midrange Modules: 2 – 4 1/2 inch Drivers

Midrange Modules: 2 – 1 inch Cloth Dome

Electrostatic Module: Electrostatic High-Frequency Arry (15 Panels)

Lower Module: 2 – 7 inch x 9 inch

Woofer: 1 – 18 inch

Wilson Audio Release Original WAMM Sketches

Original set up diagram for the Wilson WAMM


Impedance: 4 ohms (Full-Range Array)

Impedance: 16 ohms (Subwoofer Tower)

Frequency Response: -3 dB at 17 Hz and 30,000 Hz (Adjustable)

Sensitivity: 2.83 V. input @ 300 Hz centered pink noise yields 96 dB @ 1 meter

Minimum Amplification: 20 Watts


Main Array Tower Height: 78 inches

Width: 18 3/4 inches

Depth: 31 3/4 inches

Weight: 193 lbs.

Subwoofer Towers: 78 inches

Subwoofer Width: 24 inches

Subwoofer Depth: 27 1/2 inches

Subwoofer Weight: 182 lbs.

Total System Weight: 750 lbs.

The most recent incarnation of the WAMM is the Wilson Audio WAMM Master Chronosonic, released in 2017 before Dave Wilson passed away in 2018, it is described as his Magnum Opus.

Wilson Audio Release Original WAMM Sketches

The original sketch of the WAMM logo

Wilson Audio Alexx V

Jumping back to the present, Wilson Audio’s newest speaker, the Alexx V, will be released on the 29th of March 2021…more info will follow.

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