HEGEL Linear Phase LineDriver™
Technology.
After converting the digital CD
data to the analog domain with
the SyncroDAC™
converter, the high frequency
noise has to be removed from the
analog signal. This prevents
high frequency noise from the
conversion process to reach the
pre-amplifier and
power-amplifier in the audio
system. High Frequency noise
will reduce the linearity and
resolution of the complete audio
system.
The linear phase low pass filter
will remove the high frequency
noise from the analog signal,
and will at the same time keep
the phase information in the
audio signal intact.
The LineDriver circuit block is
connected after the linear phase
filter, and will drive the
connected signal cables with a
very low output impedance. The
LineDriver circuits have got
high output drive current, so
that any type of signal cables
can be used without any loss of
sound quality. The line driver
is using true balanced
technology to reduce distortion
and preserve highest possible
resolution.
The Linear Phase LineDriver™ in the
Hegel CD-players have a high
current capacity and low output
impedance to be able to drive
all types of signal cables.
Hegel has designed the crucial
analog low pass filter and line
driver circuits to
preserve the highest possible
dynamic range free from
distortion and noise from the CDs. To be able to
design these high performance
analog circuit blocks in the best possible way
requires a lot of deep technical
knowledge in the fields of low
noise analog electronics, high
frequency analog electronics and
advanced circuit board layout
techniques. |
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