Related Manuals for Krell Industries S-275
Summary of Contents for Krell Industries S-275
- Page 1 S– 275 Stereo Power Amplifier THE LEADER IN AUDIO ENGINEERING Instructions for Use Owner’s Reference...
- Page 2 Introduction Thank you for your purchase of the Krell S-275 Stereo Power Amplifier. This configurable power amplifier has a discrete signal path from input to output and employs a wide bandwidth design with low negative feedback for sonic accuracy throughout the fre- quency spectrum.
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Page 3: Definition Of Terms
A two-wire input or output circuit. Use care when using single- ended connections as the ground connection is made last and broken first. Turn the system off prior to making or breaking single- ended connections. Single-ended connections are not recom- mended for connections requiring long cable runs. Krell S-275... - Page 4 Move the rear panel breaker switch to the on position and the power status indicator illuminates in red. The component is now ready to be switched to the operational mode. Krell recommends leaving the component in the stand-by mode when it is not playing music.
- Page 5 Place the amplifier in a safe location and remove the protective plastic wrapping. f any of these items are not included please contact your authorized Krell dealer. Notes Save all packing materials. If you must ship your S-275 in the future, repack the unit in its original packaging to prevent shipping damage.
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Page 6: Ac Power Guidelines
Loudspeaker cable adds impedance to the load the amplifier must drive, regardless of the cable’s gauge. All Krell amplifiers drive the lowest impedances with ease, but long loudspeaker cables reduce the maximum power that can be delivered to the loudspeakers. - Page 7 Mono/Stereo Switch Gain Switch Input Switch Left and Right Balanced Analog Inputs Left and Right Single- ended Analog Inputs 12 VDC Trigger In/Out Power Main Power Switch Speaker Connectors Right/Mono Speaker Fuse Left/Mono Speaker Fuse IEC Connector KRELL S-275 Krell S-275...
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Page 8: Front And Rear Panel Description
S-275. 14 Left and Right Loudspeaker Outputs The S-275 is equipped with standard binding posts for each ampli- fier channel. These connectors accept bare wire, pins, banana Krell S-275... - Page 9 8. 12 Volt Trigger Input/Output. Out.The output sends 12 VDC (12 V trigger) to other Krell compo- nents and other devices that incorporate a 12 V trigger. In.The input receives 12 VDC (12 V trigger) from other Krell com- ponents and other devices that incorporate a 12 V trigger.
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Page 10: Connection Steps
Connecting the S-275 to Your System USING BALANCED Krell recommends using balanced interconnect cables. Balanced CONNECTIONS interconnect cables not only can minimize sonic loss but are also immune to induced noise, especially with installations using long cables. Balanced connections have 6 dB more gain than single- ended connections. -
Page 11: Operating Your
Krell amplifiers have large reserves of clean power and can safely drive loudspeakers to higher sound pressure levels than other amplifiers. However, use care when setting high playback levels and lower the vol- ume level at any sign of loudspeaker distress. -
Page 12: Questions And Answers
Have the interconnect cables checked before proceeding. If the interconnect cables are sound, you may be experiencing a ground loop. Please contact your authorized Krell dealer, distributor, or Krell for suggestions on how to solve this problem. Krell S-275... -
Page 13: Warranty
Krell factory. Should for warranty benefits, this product fail to perform at any time during the warranty, Krell will repair it at no cost to please complete and return the owner, except as set forth in this warranty. -
Page 14: Return Authorization Procedure
203-799-9796 E-MAIL service@krellonline.com WEBSITE http://www.krellonline.com To return a product to Krell, please follow this procedure so that HOW TO RETURN we may serve you better: A PRODUCT Obtain a Return Authorization Number (R/A number) and ship- ping address from the Krell Service Department. - Page 15 Krell Industries, LLC. S-275 45 Connair Road Stereo Amplifier Orange, CT 06477-3650 USA v 1.0 TEL 203-799-9954, FAX 203-891-2028 E-MAIL krell@krellonline.com WEB SITE www.krellonline.com Specifications 1 pair single-ended All operational features, functions, FREQUENCY RESPONSE specifications, and policies are via RCA connectors 20 Hz–20 kHz...