R10 was a high grade preamplifier developed and
handcrafted elaborately to re-render
full music spirit and connotation,whose design
reference benchmark is state of the art counterpart
the top hi-end preamplifiers’
function, construction and fabrication.
dual mono design
be expected, the R10 uses a dual mono design that
isolates each channel from the other. We use
separate power supplies for the two audio channels
in R10, and additional, completely separate power
supplies for the control, display and communication
circuitry in the Controller. In fact, there is a
diecast aluminum wall between the two channels in
the Preamplifier, separating Left from Right
channels physically as well as electrically.
remarkable efforts to preserve isolation between
channels in the R10 deliver superior imaging
specificity and accuracy, creating a vividly rich,
three dimensional sonic image.
addition to the isolation between channels,
isolation between inputs in the R10 is unsurpassed.
By using a discrete “T-switch” input switching along
with special shielding and board layout, the
selected source effectively has the preamplifier
“all to itself.” By effectively “unplugging” inputs
not being used, this design delivers better than 120
dB separation between even adjacent input
connectors, ensuring that you hear only the source
you intend to hear, without even subtle
contamination from other active source components.
fully balanced design
Reference Preamplifier is fully balanced from input
to output. In fact, even single-ended inputs are
converted to balanced upon entering the preamp, and
are handled in a balanced fashion thereafter. The
rigorous implementation of the balanced circuitry
within the R10 conveys all of the information
present in the source signal to the power amplifier,
without the limitations of assymetrical single-ended
electronic control of analog volume has been a
standard feature of Dussun preamplifiers. Dussun
introduce revolutionary volume precision and
resolution to the R10 preamplifiers, with the 0.1
dB-step volume control. The R10 uses 98
surface-mounted, precision resistors per
channel.This balanced volume control gives us over
65,000 possible volume settings between zero- and
maximum-attenuation (Don’t worry, we don’t use them
all.), it delivers greater transparency than any
volume control technology we have ever experienced.
It also provides increments as small as 0.1 dB,
allowing you to select precisely the correct volume
for any given recording, and to do so repeatably.
Local supply regulation and passive bypass
components are used to assure optimum results.
Reference Preamplifier includes two of main outputs
per channel: one of balanced outputs on high quality
XLRs, and one of single-ended outputs on RCA jacks.
The XLR and RCA outputs are buffered independently
of each other, and may be used simultaneously
without degrading performance.
power supplies divide the task of providing clean
and stable DC power to the various circuit elements.
Common mode and differential filtering capacitors
are used on the AC mains input to pre-filter high
control and display circuitry are powered from a
separate, low-voltage DC supply. This approach also
prevents noise generated by control and display
circuitry from finding its way into the audio
would expect in a Dussun amplifier, left and right
channel audio circuits are powered by two
independent power supplies. Custom-designed R-type
transformers are used to reduce the AC mains voltage
to the proper
required for the audio supplies.
Independent rectification and filtering is followed
by active regulation for voltage gain and volume
power supplies for left and right channels ensure
that demand from one channel cannot modulate the
power supply of the adjacent channel. This dual-mono
approach results in the most effortless reproduction
of dynamic contrast as well as stable and detailed
remote control & user experience
designed remote offers complete control in a small
and elegant package.
interface of the R10 is rooted in the advanced
design of the R10 Reference Preamplifier. Large
knobs for volume and input select help the unit
retain the tactile benefits and functionality of
traditional preamplifier designs. Of particular
interest, inputs may be named appropriately, and the
selector knob cycles only between those inputs. The
R10 can operate as if it were custom-designed for
each source component.
of the technology used, numerous details must be
executed to fully realize the potential of a Dussun
design. The quality of individual components, the
care and craftsmanship with which they are assembled
and the exhaustive inspection and testing we employ
help raise the value of Dussun products. The R10 is
built to the same high construction standards as all
other Dussun products.
control and pre-set function：
Individually pre-set gain level for all input
Individually pre-set channel name for all input
Display screen brightness adjustable for 4 levels
Maximum volume pre-set to protect expensive
Fade-in volume when switching on
Aluminium full function remote control unit
6, 12, or 18 dB in the line stage
Volume control range:
0.1 dB steps above
31 in display (-50.0 dB)
Maximum Output :
Signal to Noise Ratio: