Conrad-Johnson Sonographe SA250 Owner's Manual

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Thank you for selecting the Sonographe SA250 as the power amplifier
for your audio system. The SA250 draws on two decades of research at
conrad-johnson design into the reproduction of recorded music. The
result is an amplifier with a remarkable ability to recreate the dynamics,
textures, tonalities, and ambience of live musical performances. With
the Sonographe SA250, we believe that you will experience the excite-
ment of discovery in hearing more from your favorite recordings than
ever before.
At conrad-johnson, we expect our products to be a source of satisfaction
and of pride to their owners for many years to come. Accordingly, circuit
designs, parts and materials for all our products are selected with a view
to maintaining optimal performance over the years. Our reputation for
producing among the industry's most reliable components is a natural
consequence of this engineering approach.
Although operation of the SA250 is quite straightforward, please take a
few minutes to read this manual for useful information on it's installation
and operation.
We want you to enjoy your Sonographe product to the fullest. To this
end, our staff stands ready to answer any questions you may have about
the function and application of your SA250, and to provide any needed
service both during, and after the warranty period. Our goal is to
heighten your enjoyment of recorded music.
Sonographe SA250 Owner's Manual
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Summary of Contents for Conrad-Johnson Sonographe SA250

  • Page 1 Thank you for selecting the Sonographe SA250 as the power amplifier for your audio system. The SA250 draws on two decades of research at conrad-johnson design into the reproduction of recorded music. The result is an amplifier with a remarkable ability to recreate the dynamics, textures, tonalities, and ambience of live musical performances.
  • Page 2 Warranty For Sonographe Components conrad-johnson design, inc. will provide service under warranty to the original owner on Sonographe products sold new in the United States for the lesser period of three years from the date of purchase by the original purchaser, or five years from the date of shipment to the authorized Sonographe dealer.
  • Page 3 Registering The Warranty Please return the enclosed card to the factory within 30 days of pur- chase to register the warranty. Sonographe SA250 Owner’s Manual...
  • Page 4 EMI may be a problem. Interconnect cables should be kept as short as possible (3 meters or less), and shielded cable should be used (cable which has two center conductors, and a separate external shield connected at only one end). Sonographe SA250 Owner’s Manual...
  • Page 5 With the speakers connected out of phase, the voice will be diffused, with no identifiable source. Relative phase may be reversed by switching the "+" and "-" leads at one speaker only. Sonographe SA250 Owner’s Manual...
  • Page 6 The effect is especially apparent on plucked string sounds. A final warning - not all recordings are phase correct (including some "audiophile" recordings), so listen to several before concluding your investigation of absolute phase. Sonographe SA250 Owner’s Manual...
  • Page 7 - those that are top ranked on one system may be a poor choice for a different system. Consult your conrad-johnson dealer for recommendations for your spe- cific system. Questions: If you have questions about the installation or function of your amplifier do not hesitate to call Customer Service at (703) 698- 8581.
  • Page 8 3AG 7 amp slow-blow (5 amp slow-blow for 220 or 240V operation). NEVER REPLACE THE FUSE WITH A TYPE OR VALUE DIFFERENT FROM THAT ORIGINALLY SUPPLIED BY THE FACTORY. If the fuse blows repeatedly, contact your dealer, or Conrad-Johnson’s service department. Sonographe SA250 Owner’s Manual...

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