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Congratulations. In the Sonographe SC-1 you have acquired a precision
audio preamplifier of extraordinary musicality. It is the result of a decade
of research by conrad-johnson design into the application of solid state
devices to the reproduction of recorded music. The circuit design has
been executed 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 provide you with an audio instrument
capable of achieving a believable illusion of live music when listening to
high quality recordings. This manual contains many important sugges-
tions on how to realize the full potential of your SC-1. Please take a few
minutes to read it.
Sonographe SC1 Owner's Manual
1
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Summary of Contents for Conrad-johnson design Sonographe SC-1
- Page 1 Congratulations. In the Sonographe SC-1 you have acquired a precision audio preamplifier of extraordinary musicality. It is the result of a decade of research by conrad-johnson design into the application of solid state devices to the reproduction of recorded music. The circuit design has been executed with quality component parts and each unit has been painstakingly hand assembled.
- Page 2 LIMITED WARRANTY FOR THE SONOGRAPHE SC-1 1. conrad-johnson design, inc. warrants to the original purchaser that the Sonographe SC-1 will be free of defects in materials and workmanship for a period of two years from the date of original purchase.
- Page 3 NSTALLATION Because the SC-1 dissipates very little heat(less than 10 watts) ventila- tion is not an important consideration, allowing greater flexibility for custom or built-in installations. Of course, reasonable judgement must be exercised to see that the SC-1 does not obstruct ventilation required by amplifiers or other equipment in the system.
- 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).
- Page 5 1/2 dB throughout its rotation. ETTING THE MOST FROM YOUR SC-1 The Sonographe SC-1 offers a remarkable level of sophistication and refinement in music reproduction, but it cannot transform an inferior stereo system. Only high quality amplifiers and loudspeaker systems will be capable of fully revealing the capabilities of the SC1.
- Page 6 If you are not sure about the phase of every piece in your system, you can establish correct absolute phase by careful listening. When the system is in correct phase, transients will be noticeably cleaner and more sharply defined. The effect is especially apparent on plucked string sounds.
- Page 7 Output impedance: less than 300 ohms Dimensions: 18" x 3.75" x 11.5" SERVICE 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, inc.
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