Sansui FR D25 Brochure
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Page 1
R-D35 D25
Sansui Auto-Return/Shutoff Direct- and Belt-Drive Turntables with Up-Front
Operation and Slim Design.
FR-D355
Page 2
Two new turntables from Sansux-the
FR-D35 direct drive and FR-D25 PLL-
servocontrolled belt drive. Their specs are
firsteclass. yet you'll find them in a price
range you can eaSin afford. Turntable
controls are all positioned on the front
panel -just like front-loading cassette
decks. No longer do you have to pull up
the cover completely to play a record.
nor do you have to leave a foot 130cm)
clearance above the turntable You ll
appreciate this feature most if you orga-
nize your hHI system into a rack or shelf.
but even if you place it elsewhere, you'll
be happier With frontpanel operaton.
It makes turntable operation close to
luxurious. From Sansui. where its all hi-fi
High-Torque Direct-Drive Motor
(FR-035) and Highly-Responsive
PLL Servo (FR-025): The goal is the
same: impeccable speed accuracy.
The higher-priced FR-D35 features a
timetested Sansui-exclusive motor.
a 20-pole. 30-slot brushless DC motor
with a saturable coreThis responswe
motor is guided - moment-to-momente
by a highly ellective servo control to
ensure impeccable accuracy and mini-
mum long-term drift and wow ltshigh
torque smooths out even the slightest
flutter.
In the FR-D25. a dependable beltdrive
motor desrgniwilh a surprismg Sansui
Mist-keeps wow low and Vibrations
eflectively shut out, The surprise is a PLL
(PnasevLocked Loop; servo control
Its proven to be one of the most effective
ways of COHUOHIFQ a belt-drive motor
(as well as costlier direct-drive motors
where it's more commonly foundi In this
Sansui design. a speed error detection
dfiVlCG produces an output proportionate
to the speed error iii any), which is
Block Diagram of Motor Drive Mechanism
mating;
Waveform Detection Circuit |
l' - 1 - i
: CR _ FGO PLL _ Servo 1 Drive
: Oscillator Circuit Circuit l Circuit
L __M_or££ontrol [C _1
compared for phase difference with
a reference signal prowded by a precise
CR osmllator The servo then reduces the
difference between the two signals to
zero. and locks accurate platter speed
in for rotational steadiness rivalled only
by the Planet Earth 5 This level of
accuracy will be maintained over long
years of use.
Sansui Tonearm: Low mass,
low friction, high sensitivity.
Ideally. the tonearm on a turntable should
hold the cartridge Without subiecting it
to stress or friction. Sansui's tonearm
comes close to achievmg this ideal thanks
to its high sensitiVity and its ability to track
at a force as low as to grams Also
noteworthy are its low-mass deSign. the
low»triction bans in the pivot bearings.
and. of course the preclSion machining
Sansw products are famous for.
Tonearm resonance-the source of un-
wanted coloration-has been overcome
With one. Sansutexclusive lishbone"
sound absorbent material, and. two.
a rubber damper which decoupes the
weight shaft from the tonearm tube
A solid headshell With a universal iomt
for quick and easy cartridge replacement
tops this advanced dBSIQD off.
Automatic Tonearm: Simple,
smooth. safe.
Put a record on the platter and cue the
tonearm onto the leadein groove with the
smooth-acting Cue lever: the automatic
mechanism takes care of the rest. At end
of play. the arm is automatically lifted
and returned-gently-to its rest. Power
is then shutoff. Sale record handl ng
is one big advantage of this design. clean
hlrfl performance is another,
Convenient Up-Front Controls:
"Touch" Operation.
All of the controls fexcepl the Cue lever)
are posmoned upfront for maXimum
access This means that you can control
operation Without lifting up the cover all
the way. thus decreasrng the amount of
Controls arall up front-
a feature youll appreciilte even If you - i. put
your turntable in anTaudiorgck.
utOMMiC DRICY DttM IWMME
clearance" space necessary You'll find
this feature-and the slim design-espe-
Cially convenient it you place the FFt-DSS
or 025 in an audio rack. cabinet or shell
Speed-switching and other operations
are accomplished simply by pushing
a button.
Disc-Hugging Mat: No resonance.
no slips. no slurs.
Did you know that today's longvplaying
records are tapered from the center to
the edge at a gradient of t 3507 That 5
too slight a 'slope to be seen by the
naked eye. but it's more than a slight
threat to highcuality record reproduction
if the mat under the record assumes it
doesnt exist. Thats why Sansui provides
a mat cupped at the same 1 350 ratio
lt hugs your records to prevent slips and
slurs and to cancel any dead space under
the record that might cause resonance.
And we havent forgotten:
IA Direct Readofl Strobe-allows you
to read the strobe pattern directly off the
illuminated platter rim
«\7
a
,I .
FR-D35
IAnti-Skating DeVIce-an accurate lever
and weight system prevents uneven stylus
wear and channel imbalance.
0 Large l315-mmi Platter With Tapered
Skirtefor outck and secure record
placement.
oArm Elevation f'Cue") Lever-for safe
lifting and lowering of your stylus during
manual operation.
oElectronic Speed Switchingilor fast.
smooth changes from 33%. rpm to
45 rpm or vice versa
'Pitch Control-With a range wrde
enough l:3%i for perfect tuning With
musical instruments
Attenuation Response
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