8
Cambridge
Audio
Introduction
Thank you
for
purchasing this Cambridge Audio DacMagic Plus Upsampling Digital to Analogue
Converter. We are confident
that
you
will enjoy many years
of
listening pleasure from it. Like all
Cambridge Audio products, the DacMagic Plus adheres
to
our three core principles -stunning
performance, ease
of
use and incredible value
The DacMagic Plus features
ATF2™
(2nd Adaptive Time Filtering), an up-sampling process developed
in
conjunction with Anagram Technologies
of
Switzerland
to
intelligently interpolate incoming audio
data to 24-biV384kHz through the use of a 32-bit Analog Devices
DSP
(Digital Signal Processor).
The
ATF2
system applies sophisticated polynomial curve-fitting interpolation and incorporates a
time domain model which adaptively generates the new data
in
the temporal domain, dramatically
reducing digital jitter.
Our latest version
of
this algorithm now supports noise shaped data scrambling for enhanced
linearity with 24-bit content.
As
with our high-end
CD
players, our proprietary Dual Differential Virtual Earth Balanced filter
topology is used, configured as a low-order two pole linear-phase Bessel filter to take advantage
of
the high sampling rate achieved.
Two
very high quality Wolfson WM8740 24-bit
DAC
ICs
are used
in
dual differential mode. Since each channel has its own
DAC
to process information, completely
separate and symmetrical analogue filter circuitry can
be
implemented. These allow both left- and
right-channel circuitry to operate identically, ensuring the DacMagic Plus delivers fantastic sound-
staging and stereo-imaging properties.
Two
digital inputs are fitted (both featuring
S/P
DIF
and
TOSLINK)
and allow a wide range
of
digital
sources to
be
connected.
In
addition, a
USB
input enables the DacMagic Plus to
be
connected to a
PC
and act as a very high quality DAC/Soundcard, offering genuine HiFi-quality playback from your
desktop, media
PC,
etc. Adigital output is fitted which passes through the selected digital source for
recording purposes (no up-sampling performed).
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