TacT Audio BOZ 216, Owner'S Manual

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boz
unique technology
The Boz 216/2200 is not Really an Amplifier
The BOZ 216/2200 is not an amplifier at all. No signal amplification takes place whatsoever!
The BOZ-2200 modules are an ultra high precision D/A converters operating in PWM mode with a
master clock set at a speed 2,222 times higher than the CD format, 1,024 times higher than DVD-
Audio and 35 times higher than the SACD format. In contrast to conventional D/A converters, it
operates at a switching voltage of more than 60 Volts, delivering the equivalent of 400 Watts per
channel in 4 Ohms. All internal signal processing is performed at 96Kz
Conventional Amplification vs. Boz Amplification
The entire active analog signal path consists of a single coil and a single capacitor, forming a 12 dB
per octave low-pass filter at 70 kHz. The voltage of the power supply determines the output level,
thus eliminating the need for any passive volume control.
Compared to a normal amplification chain this is a massive reduction in complexity. In a normal
chain, the output of the D/A converter is sent to an analog buffer stage, then to an analog pre-
amplifier with relays, input stage, volume stage and output stage. It is then sent as a low-voltage
analog signal to the power amplifier with an input stage, output stage and feedback loop. Finally,
the signal is sent to the speakers.
In a conventional amplifier, all of this complex and costly circuitry requires hundreds of compo-
nents. The BOZ 216/2200 digital amplifier replaces all this with just two components.
Added Benefits of the Boz System
In addition to the revolutionary amplifier design, the BOZ Series is equipped with the latest 192
kHz sample rate conversion technology at the digital inputs. All digital audio signal routing is per-
formed by using LVDS logic for maximum signal integrity. All audio signal processing algorithms
are implemented with floating point precision.
Your BOZ-216 control unit achieves total separation of the input AC power from the sensitive and
extremely clean digital audio signals in the BOZ-2200 modules. Inherent to this setup is unparal-
leled system-wide noise reduction and maximum signal purity.
216/2200