The innovation that revolutionizes the sound.
The amplifier that is not an amplifier.

We have developed an electronic concept that
is based on fundamentally different electro-physical
laws than all other amplifiers on the market.

We have succeeded – as the first manufacturer worldwide –
in making a technological concept work that is considered perfect,
and which until now was technologically unmanageable.

Progress is
always a purely
mental matter.

Questioning the established in order to discover the new.

In 2005, Matthias Ruff had the idea to develop an electronics that not only simply amplifies signals, but directly controls the acceleration of a loudspeaker’s diaphragm.

This vision of the perfect drive has not let him go.

The voice coil of a loudspeaker operates with current.

But 99.9% of all amplifiers are voltage amplifiers.
That doesn’t make any sense, does it?

The power of physics. Ohm's law.

Due to the laws of electrophysics, a voltage amplifier only works correctly if the resistance of the loudspeaker is a constant. Only in this case the acceleration of the diaphragm corresponds exactly to the voltage value of the music signal.

However, the resistance of a loudspeaker is variable and changes constantly.

A voltage amplifier disregards this relationship. The result can therefore never be correct.

Voltage amplifier and loudspeaker simply do not match.

Take the perfect voltage amplifier and the perfect loudspeaker. And yet the two can never harmonize properly together.

The interfaces simply will not fit together. And so distortions, temporal inaccuracies arise and the music loses purity.

The ideal amplifier supplies current.

Via a precise current flow in the output, a current amplifier directly controls the acceleration of the membrane and thus the sound.

Independent of the fluctuating impedances of the speaker.

The purest current to voltage converter ever.

The patent pending ITRON circuit is a balanced single-ended circuit without any negative feedback. In the output is a perfectly orchestrated current signal that precisely follows the voltage of the input.

Strictly speaking, therefore, it is not just a sophisticated amplifier, but a perfect voltage/current converter, for direct control of the diaphragm movement.

What makes the
sound of ITRON
so incomparable?

Better dynamics.

All impedance fluctuations of the speaker are perfectly compensated. The current output thus provides an extremely dynamic acceleration of the membrane.

Music sounds as if unleashed. An incredible sound experience like a concert on steroids.

More details.

Especially at very low volumes and thus delicate electrical signals, the ITRON circuitry is able to perfectly compensate for the negative inductance effects.

The sound is intoxicatingly vivid, detailed and luminous even with quiet music.

Extended tweeter range.

ITRON has a tremendous high-frequency resolution, as the increasing reactance of the tweeter to high frequencies is perfectly compensated.

In combination with the new XT3 Supertweeter this means a fabulously delicate reproduction up to the highest frequencies without the otherwise system-conditioned level drop.

The most precise timing available.

The diaphragm is always accelerated without any delay. With ITRON, every sound detail comes at the right time.

Exactly to the thousandth of a second. All drivers perfectly synchronized, harmonious and without any temporal interference.

Extreme extended spatiality.

The impulse response of a loudspeaker is outstanding with ITRON. So even the smallest nuances in timing are reproduced with crystal clarity.

For an overwhelming 3-dimensional sound, as if you were sitting live in the middle of the front row.

As low distortion as technically possible.

There is no normal amplifier that sounds anywhere near as natural as ITRON.

No artificial artifacts of a voltage amplifier overlay the music signal. The technology disappears. The sounds detach from the speaker. The music sounds natural & pure.