Bedienungsanleitung Audison Thesis HV Venti (Seite 4 von 25) (Englisch)

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1 • PROJECT PURPOSE

Audison has always pursued the best audio reproduction in all of its products.

The creation of the HR100 in 1991 occurred simultaneously with the achievement of a technological goal. On one hand it

appeared to use all the knowledge attained to this date, yet on the other hand it set a landmark for years to come.

Universally recognized as “The Ampliﬁ er”, the HR100, unlike other car stereo products, set a new standard for “longevity;

being produced until year 2003. It identiﬁ ed the Audison brand throughout the world. The worldwide press awarded it

many accolades countless number of times, and today it stays a reference product for its performance. To car audio fans

worldwide it stands as a legend.

Throughout the HR100 project, Audisons’ mission was to obtain the highest sound quality without compromises. Its

maximum power output was its only limitation, as technology of the time did not allow this reference sound quality with

massive power.

Four years later the THESIS brand was created. Using the latest in technology, Audison once again rewrote the book on

ampliﬁ er performance. In 1995 and in 1996 respectively, HVsedici and HVtrenta ampliﬁ ers came to light.

After the introduction of these ampliﬁ ers, new standards were set as far as the sound quality / power quotient were

concerned. They were also the ﬁ rst to use balanced inputs in a rational way through the worldwide-patented ABS (Audison

Balanced Systems) connectors. HVsedici and HVtrenta became another legend

THESIS line ampliﬁ ers became the most requested products by car audio enthusiasts looking for dynamics and necessary

to anyone in the competition circles requiring maximum SPL without sacriﬁ cing sound quality

Each of the two projects, THESIS and HR100, keeps its own identity and sonic footprint, which is difﬁ cult to surpass.

Therefore a new version of these classics may have changed their look, maybe also some of their features, but not their

sound speciﬁ cations.

However there was still a way for Audison to try to improve, by merging these two unique characters into one ampliﬁ er.

This has been the idea of Audison engineers for a very long time.

After several years, obtaining a deeper technological knowledge, this became possible. The project of a new THESIS

ampliﬁ er was launched. After two years of research, by exploiting the technical know-how that has been gathered in the

course of time and by employing the best, most recently introduced electronic components available, today THESIS

HVventi is born.

With HVventi, Audison aims at renewing the HR100 and THESIS legend status. Internally the most current available

technology was employed; therefore it is not dangerous to predict that HVventi is going to remain an absolute reference

product for many years to come.

It could only be overcome when a further technological leap occurs, mostly concerning components. When that technology

is available, Audison will continue to be the legend.

2 • PROJECT PHILOSOPHY

From the start, the vision of the HV venti project was characterised by absolutely no compromises in achieving maximum

performance. Each stage of the ampliﬁ er was designed employing the most suitable components even if they were hard

to ﬁ nd.

The ﬁ rst unique aspect of the project is the total void of integrated operational circuitry. Due to their constructive technology

and the low voltage level that the circuitry can handle, they can deteriorate the signal.

Their elimination permitted the engineers to work at higher voltages and with a Class A biasing of the intermediate stages;

the choice of working in Class A caused the associated heat on the circuits, which might have led to the components

destruction.

Achieving proper operating temperature was a key design component. Cooling all the internal heat sources through

a complex thermal transfer system that directs heat into the main heat sinks assertively attacked the thermal issue.

Employing ﬁ ve controlled fans solved the problem of temperature variation, which affects circuit stability, sonic consistency

and also lowers reliability.

Signal commutations were treated using special relays: too complex of a circuit would have led to longer tracks and

parasitic inductances, causing signal deterioration and loss of musical information.

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