TacT Audio BOZ 216, Руководство пользователя

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technological advantages
High Resolution at Normal Listening Levels
High resolution at normal listening levels: With a normal amplification chain, resolution is depen-
dent on the volume setting. The power amp is always on maximum level - even when listening at
low levels. In most cases, only the highest level of playback will give full resolution.
In the Boz amps, the playback level is controlled by the voltage of the power supply. At low levels,
the supply is at low voltage but the signal remains identical. Starting at a level of 30 dB below
maximum, DSP-controlled digital attenuation takes over. This is done with extreme precision using
floating point arithmetic.
No Feedback
Feedback in normal amplifiers is known to cause ringing in the time domain. The BOZ-2200 ap-
proach uses no feedback or feed-forward in the signal path.
Immunity to Loudspeaker back-EMF
Total immunity to loudspeaker back-EMF: Any loudspeaker driven by an amplifier will send current
back into the amplifier. This can make the amplifier behave in mysterious ways as it interacts with
the feedback loops. But with the BOZ digital amplifier, zero feedback and steady-state voltage from
the power supply means that back-EMF can have absolutely no effect on the sound.
Inherently Free From Ringing
Music is all transients, very few instruments produce anything that resembles pure sine waves.
Conventional amplifiers will overshoot and undershoot transients to varying degrees – simply
because transients are voltage swings. In the BOZ digital amplifier, the signal is determined by the
timing of the switching, while the voltage remains constant. Time cannot resonate and when volt-
age remains constant, there is no risk at all that the design will produce any ringing.
Low Heat
BOZ digital amplifiers produce far less heat per W/cubic inch than conventional amplifiers. This will
extend the product’s lifetime considerably. The elimination of a mechanical volume control and
relays adds further to the lifetime of the product and ensures that no sonic degradation will take
place over time.
Lowest Ever Power Supply Noise Floor
The power supply has been designed with triple-stage supply noise suppression. The noise floor is
at -135 dB. This is far below the level for any known power conditioning equipment in the industry.
Modular Design
The BOZ system is the epitome of modular efficiency: you decide how many channels of ampli-
fication you need and you specify your system accordingly. Optional system features, such as the
Crossover, Room Correction, and Parametric Equalization packages, are also designed with flexibil-
ity in mind. All software can be easily added to your system at any time. Modular DSP design also
allows us to provide you with firmware upgrades that you can easily download and install.
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