Selector DU 111
The
Pure-Sound Selector
Sound-neutral selector unit with
linear fader
The pretentious owner of high-valued
playback units has very often the problem to select the sources and
to control the volume at the same time.
This concerns especially the professional equipment of the
vinyldisks- and CD-production: studio-turntables, CD-drives,
tape-recorders, digital recording- and playback-units.
Such a selection unit may not influence the selected signal in any
way, it must be totally neutral.
This task is not new. But the results we had in the past gave rise
to many discussions about the influence of the sound, created by
pre-amplifiers.
Now there is a new way of a solution for this problem.
The Selector DU 111 is a selection unit with the following
attributes:
Absolutely sound-neutral selection because of a pure passive
circuit design
1. The selected sources are not influenced by electronical
components, neither tubes, transistors nor integrated circuits,
therfore absolutely no influence on the selected signal.
2. The used components are selected elements which have been proved
true variously in the professional studio technique.
What has been proved true from the beginning in recording- and
sound-production, can not be bad at home at the end of this
reproduction chain.
a. Gold-plated connectors
b. Gold-plated switching elements
c. Large scale dimensioned conductors
3. Professionel stereo-linear fader for volume control.
This high-valued linear fader from the professionel recording technique has as
well been proved true in all styles of music-recordings many thousand times and
worldwide because of his neutrality, longtime-stability, longevity and exactness
of the technical datas.
4.The pushbuttons for the sources are permanent lightened dimly. The pushbutton
of the selected source lights bright.
All these attributes are valid in position pro (means professionell) of the
general source switch.
To have the possibility to select high-end-units, the general source switch of
the Selector DU 111 has another operating position: home.
In this position a balanced impedance adaption guarantees the best matching of
the linear fader to the high-end-units. By that the Selector DU 111 can show his
positive attributes like the absolute passive selection and the absolut passive
volume control on these high-valued units, too.
The output of the Selector DU 111 is directly connected to the power amplifier.
Extensive configurations of cables out of the accessories list allow to connect
all kinds of units.
If you connect the output parallel you can also use recording equipments at the
same time.
Technical Datas
Input 6 stereo sources
(12 XLR-connectors)
Output 1 stereo
output (2XLR-connectors)
Input impedance in position pro 1 kOhm
in position home > 20 kOhm
Output impedance in position pro < 500 Ohm
in position home < 500 Ohm
Signal to-noise-ratio peak weighted
in
position pro given by the connected unit
in
position home > 100 dB
Inputs and outputs are balanced, unbalanced operation is possible.
Power supply (switching units, LED illumination, impedance adaption)
by external power supply. 230 V AC 24 V- / 250 mA
Dimensions 430 x 290 x 77 mm
Weight approximately 5,5
kg
Studiotechnik Dusch 