Conrad-johnson design Sonographe SC-1 Owner'S Manual Download Page 4

Record output:

 The two pairs of record outputs connect the selected

signal to your recorders or external processing loop (eg. equalizer). The
output signal is not affected by the level control. Connect "record out" to
the 

inputs

 of your tape recorders or external processors.

Main output:

 Connect this output to the input of your amplifier(or

crossover in a bi-amped system). We recommend the use of an amplifier
with an input impedance of 20k ohms or higher.

C

ONTROLS

PHONO, TUNER, CD, VIDEO, TAPE 1:

 This selector switch is used to

choose an input. The selected source will be available at the source
position of the tape monitor switch and at both record outputs. Note that
dubbing between tape decks is possible only from tape 1 to tape 2. Also,
since tape deck 1’s output is fed back to its own record input, care must
be taken not to select Tape 1 while the tape deck is in record mode.
Similarly, if tape loop 1 is used for an external signal processor, Tape 1
should never be selected (and, of course, there is no reason to select it
since the external processor is not itself a program source). Failure to
observe these precautions will create an unstable feedback system and
may generate a "howling" sound.

TAPE 1, SOURCE, TAPE 2

: This monitor switch allows you to listen to

either of two tape decks or the source selected by the selector switch.
This control also permits the user to listen to a tape as it is being
recorded. The tape deck will record whichever source has been se-
lected, and the quality of the recording can be monitored by switching
between Source and Tape 1 or Tape 2. Remember-do not select Tape 1
on both switches at the same time. The resultant feedback may damage
your system.

REV, STEREO, MONO:

 The setting of this switch does not alter the

signal at the record outputs. Reverse passes the left channel input to
right channel output and vice-versa. Stereo gives normal stereo opera-
tion. Mono passes the sum of left and right inputs to both channel
outputs.

BALANCE:

 Permits continous control of location of stereo image from

left to right. In the full counterclockwise position only the left channel will

Sonographe SC1 Owner’s Manual

4

Summary of Contents for Sonographe SC-1

Page 1: ...with quality component parts and each unit has been painstakingly hand assembled The completed instrument has been subjected to a rigorous quality inspection program Every effort has been made to pro...

Page 2: ...id by conrad johnson design Replacement cartons are available from the factory for a nominal charge d Normal wear and maintenance are not covered by this warranty 3 Where permitted by law conrad johns...

Page 3: ...n and equalization required by moving magnet and high output moving coil cartridges The input impedance is the industry standard 47 000 ohms shunted by approximately 100 picofarads capacitance This is...

Page 4: ...ected and of course there is no reason to select it since the external processor is not itself a program source Failure to observe these precautions will create an unstable feedback system and may gen...

Page 5: ...is capable of distinguishing these positive transients from the musically unnatural alternative of a negative transient an initial fall in air pressure In terms of your stereo system these transients...

Page 6: ...n be plugged in two ways It will normally sound better in one orientation than in the other The same will be true of any electronic device in your system THE IMPORTANCE OF WIRES Interconnect and speak...

Page 7: ...E In the event your Sonographe SC 1 stereo preamplifier requires sevice repack it with the original packing material and ship via United Parcel Service UPS to Service Department conrad johnson design...

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