
Electronic Loudspeaker Imaging Simulating Amplifier
“I remember that years ago, while listening to music on my headphones, I was struck by the level of detail that finely crafted headphones could deliver, and yet by how far they still were from reproducing the three-dimensional soundstage one experiences when listening to a proper audio system.
This is what led to the creation of ELISA.”

Eng. Cesare Mattoli
Founder of AUDMA,
Inventor of ELISA circuit
The story of ELISA
The first circuit
The first circuit was developed with the aim of overcoming the spatial limitations of headphone listening.
At that time, the principle had not yet been fully defined, and the available electronic technology of the time did not allow for sound quality that met listening expectations.
1978

An idea ahead of its time
Research continued, and the circuit underwent further development.
Yet even at this stage, the electronic technologies available still did not allow for the level of precision and transparency required for a definitive implementation.
1993

ELISA is born
Advances in electronics finally made possible what was previously not achievable. The project reaches full maturity and takes the name ELISA (Electronic Loudspeaker Imaging Simulating Amplifier), assuming its final and coherent form.
2022

ELISA becomes AUDMA
ELISA finds its first industrial application in the MAESTRO HPA1. With the introduction of AUDMA, the technology reaches the market while preserving the principles and vision from which it originated.
2024

How ELISA works
The ELISA circuit brings the realism of loudspeaker listening to headphones, and it recreates a natural sound image through advanced delay-line processing.
The result is a spatially coherent soundstage, with instruments and voices positioned in front of the listener within an ideal acoustic environment.
The STAGE and ANGLE controls adjust the parameters of the ELISA circuit and modify the depth and width of the sound image. STAGE adjusts the perceived distance of the sound image, making it appear nearer or farther away. ANGLE sets its width, making the image wider or narrower.

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