A good sound
system is more than just a set of highly impressive technical specifications,
the listening quality itself is more important than a list of figures. With our
200 series audio equipment we believe we have achieved an extraordinarily good
balance between performance and cost, between theoretical design and practical
audio quality.
The 200
series combines the very best sound performance with superb standards of
construction and a highly attractive modern appearance.
The combined
system produces a notably clean and beautifully neutral sound and yet preserves
a large number of undeniably useful features.
A unique
mixture of careful kistening tests and quality control measures during
development and production have combined to present a superbly felxible high
performance sound system.
The C200
Stereo Control Unit
The C200
satisfies all the demanding criteria set by systems requiring a control unit of
top quality yet with versatility and flexibility in its
Readily
upgraded at some later date to keep pace with future developments in audio
systems.
The C200
includes a number of useful features not always found on modern high quality
pre-amplifiers.
The unit is
provided with a variety of tone and signal routing controls without loss of
quality in performance. The bass and treble controls are factory set for a
perfectly flat response in the 12 o'colock position; soft clicks of the knobs
provide a guide for nominal one decibel steps up to a maximum of five decibels
boost or cut. The tone controls are non-inverting, which allows a true by-pass
cancel switch to be used without phase reversal.
A switchable
low frequency, sub-sonic filter is fitted to minimise the effects of possible
turntable rumble; it also helps to protect small loudspeakers from low
frequency overload. A mono switch is also included.
The
headphone socket is driven from a separate internal high quality amplifier.
Thus, whatever the final speaker system might be, headphones can always be
used. The main pre-amplifier outputs are automatically muted when the
headphones are plugged in . Two extra switched and fused mains outlets to IEC
standards, invaluable when connecting up a complete hi-fi system, are provided
at the rear of the case.
There is a
choice of module cards for the two modular inputs, including low output moving
coil cartridge, moving magnet cartridge and line level. The cartridge input
boards have switchable load and gain facilities, access to which is through
apertures underneath the unit.
A tuner
input and two tape inputs are also fitted. Full tape-to-tape dubbing is
possible and adjustment is provided for the tape return levels.
Within the
C200, provision has been made on the output card for fitting electronic
cross-over units for use with active loudspeakers. One such system, using a
C200 and two SA200 power amplifiers is shown on page SA200
The C200
Control Unit is primarily intended for use with the SA 200 Power Amplifier,
nevertheless it is suitable for pairing with any other high performance power
amplifier if required. Also, matching it with units of the A60 series can
provide a number of different, highly imaginative sound systems.
Specifications:
Inputs:
Inputs 1 and
2 : labelled Disc and Aux, are programmable and their function depends on the
input boards selected.
Moving Coil
Cartridge
Input
Resistance (switchable): 330/100/30/10 Ω
Input
Capacitance (switchable): 1/100 nF
Input
Sensitivity (switchable): 60/160 µV at 1
kHz
Noise: less than -60 dB (high Gain); less than -66
dB (low gain)
Overload
Margin: better than 38 dB
Moving
Magnet Cartridge
Input
Resistance (switchable): 47/30/8 kΩ
Input
Capacitance (switchable): 50/150/270/370
pF
Input
Sensitivity (switchable): 1,5 / 3,0 mV
at 1 kHz
Noise: less than -70 dB (high Gain); less than -75
dB (low gain)
Overload
Margin: better than 38 dB
Other Inputs
- Tuner, Tape 1 and Tape 2
Input
Sensitivty: 100 mV
Input
Impedance:
Tuner, Aux
: 20 k Ω
Tape 1 and 2
: 10 k Ω
Outputs
Tape 1 and
Tape 2
Nominal
Output Level : 100 mV
Output
Impedance : 2 k Ω
Main Output
Nominal
Output Level : 1,0 V
Output
Impedance : 350 k Ω
Noise (using
line input): less than -90 dB
Crosstalk
(any input): less than -60 dB at 1 kHz
Distrotion: less than 0,01% (20 Hz -20 kHz at 1,0 V RMS)
Maximum
Output: better than 8 V RMS
Performance
Frequency
Response
Via Line
Inputs: +0, -0,5 dB, (20 Hz -20 kHz)
Via Disc
Inputs: +0,25, -0,5 dB , (20 Hz -20 kHz)
High Pass
Filter: -3 dB at 30 Hz 12db/oct
Tone
Controls: ±5db at 20 Hz and 20 kHz
Phase
All stages
are non-inverting providing phase integrity under all operating conditions
Power Supply
200 - 250 V
AC, 48 - 63 Hz, 25V A max. The unit may be adjusted to work in the range 100 -
125 V AC.
Maximum
capacity of switched AC outlets 5A RMS
Dimensions
(W x H x D): 430 x 44 x 305 mm (17"
x 1-3/4" x 12")
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