Page 2 - with Krell CAST II Technology
Full Power Balanced X Series Power Amplifiers 700cx, 400cx, 300cx Stereo 750Mcx, 450Mcx, 350Mcx Monaural with Krell CAST II Technology v 02.0 Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 FAX 203-891-2028 E-MAIL [email protected] WEBSITE http://www.krellonline...
Page 3 - Page; Contents
Page INTRODUCTION 1 DEFINITION OF TERMS 1 REVOLUTIONARY KRELL CAST and CAST II TECHNOLOGY 3 UNPACKING 4 PLACEMENT 4 AC Power Guidelines 5 FRONT PANEL DESCRIPTION 8 700cx, 400cx, and 300cx Stereo Power Amplifiers 8 750Mcx, 450Mcx, and 350Mcx Monaural Power Amplifiers 8 BACK PANEL DESCRIPTION 11 700cx...
Page 4 - Illustrations
Page FIGURE 1 Full Power Balanced Stereo Amplifier Front Panel 6 FIGURE 2 Full Power Balanced Monaural Amplifier Front Panel 7 FIGURE 3 Full Power Balanced Stereo Amplifier Back Panel 9 FIGURE 4 Full Power Balanced Monaural Amplifier Back Panel 10 iv Krell Full Power Balanced X Series Power Amplifie...
Page 5 - Definition of Terms
The Full Power Balanced X Series consists ofthree stereo amplifiers, the Full Power Bal-anced 700cx, 400cx, and 300cx Stereo PowerAmplifiers and three monaural amplifiers, theFull Power Balanced 750Mcx, 450Mcx, and350Mcx Monaural Power Amplifiers. Installa-tion, connection, and operation of all ampl...
Page 6 - Definition of Terms,; OPERATION
2 Krell Full Powered Balanced X Series Power Amplifiers Definition of Terms, continued Single-endedA two-wire input or output circuit. Use carewhen using single-ended connections as theground connection is made last and brokenfirst. Turn the system off prior to making orbreaking single-ended connect...
Page 8 - Unpacking
4 Krell Full Power Balanced X Series Power Amplifiers Two people are needed to remove the FullPower Balanced amplifier from its shipping boxsafely and easily. 1. Open the shipping box and remove the top layer of foam. You see these items: 1 Full Power Balanced Amplifier1 Packet containing the owner’...
Page 9 - AC POWER GUIDELINES
Krell Full Power Balanced X Series Power Amplifiers 5 AC POWER GUIDELINES The Full Power Balanced 300cx and 350Mcxamplifiers need to be operated from a dedicat-ed AC power line rated at a minimum of 15amps. The Full Power Balanced 700cx,750Mcx, 400cx, and 450Mcx amplifiers need to be operated from a...
Page 12 - Front Panel Description
8 Krell Full Power Balanced X Series Power Amplifiers The front panel accesses power on/stand-byand infrared sensor (remote control) functions.The power stand-by, bias, regulator, and KrellCAST LEDs, arranged in a triangle on the frontpanel above the power button, illuminate to indi-cate amplifier s...
Page 15 - Back Panel Description
Krell Full Power Balanced X Series Power Amplifiers 11 The back panel provides connections for allinputs and outputs, power on/off, and remotecontrol links. The back panel also has handlesthat allow you to safely and easily move theamplifier. FULL POWER BALANCED 700cx, 400cx, AND 300cxSTEREO POWER A...
Page 16 - Back Panel Description,
12 Krell Full Power Balanced X Series Power Amplifiers FULL POWER BALANCED 750Mcx,450Mcx, AND 350Mcx MONAURALPOWER AMPLIFIERS See Figure 4 on page 10 20 HandleAll Full Power Balanced monaural amplifiers areequipped with a handle, located beside thespeaker binding posts, to help you easily andsafely ...
Page 17 - KRELL LINK CONNECTIONS
Krell Full Power Balanced X Series Power Amplifiers 13 INPUT AND OUTPUT CONNECTIONS Krell recommends using its proprietary KrellCAST system for unparalleled sonic perfor-mance between the Full Power Balancedamplifiers and other CAST-equipped compo-nents and the KPS 25sc Krell Playback Sys-tem. Full ...
Page 18 - DC PROTECTION CIRCUITRY
14 Krell Full Power Balanced X Series Power Amplifiers 4. Connect the other end of the MIDI cable to the Krell Link in connector on the next com-ponent. To link another component, connect a sec-ond MIDI cable to the Krell Link out con-nector on the back panel of the secondcomponent. Connect the rema...
Page 19 - KRELL LINK OPERATION; Amplifier Operation
Krell Full Power Balanced X Series Power Amplifiers 15 Full Power Balanced amplifiers are easy toinstall and operate. However, it is important toexercise care during operation, due to theamplifiers’ enormous power output. Switchingbetween active sources (such as a CD player,tape monitor, or VCR) wit...
Page 21 - Amplifier Troubleshooting
Krell Full Power Balanced X Series Power Amplifiers 17 HOW TO TROUBLESHOOT SYSTEM NOISE AC grounding becomes critical when connect-ing high performance audio components. Whenyou mix and match audio components, eachwith its own ground potential, a low frequencyhum may occur in one or both speakers. T...
Page 23 - Questions and Answers
Krell Full Power Balanced X Series Power Amplifiers 19 Q. Should I leave my Full Power Balancedamplifier on at all times? A. For maximum amplifier performance, leavethe back panel power breaker switch on at alltimes. This places the amplifier in stand-bymode. Full Power Balanced amplifiers aredesign...
Page 24 - IMPORTANT; Warranty
This Krell product has a limited warranty of five years forparts and labor on circuitry. Should this product fail to per-form at any time during the warranty, Krell will repair it atno cost to the owner, except as set forth in this warranty. The warranty does not apply to damage caused by acts ofGod...
Page 26 - Specifications
Specifications Full Power Balanced 300cx, 400cx, 700cx Stereo Amplifiers FPB 300cx FPB 400cx FPB 700cx FREQUENCY RESPONSE 20 Hz to 20 kHz 20 Hz to 20 kHz 20 Hz to 20 kHz +0 dB, -0.05 dB +0 dB, -0.05 dB +0 dB, -0.05 dB 0.1 Hz to 240 kHz 0.1 Hz to 240 kHz 0.1 Hz to 240 kHz +0 dB, -3 dB +0 dB, -3 dB +0...
Page 27 - Full Power Balanced 350Mcx, 450Mcx, 750Mcx Monaural Amplifiers
Krell Full Power Balanced X Series Power Amplifiers 23 Specifications Full Power Balanced 350Mcx, 450Mcx, 750Mcx Monaural Amplifiers FPB 350Mc FPB 450Mc FPB 750Mc FREQUENCY RESPONSE 20 Hz to 20 kHz 20 Hz to 20 kHz 20 Hz to 20 kHz +0 dB, -0.05 dB +0 dB, -0.05 dB +0 dB, -0.05 dB 0.1 Hz to 240 kHz 0.1 ...
Page 28 - Full Power Balanced
Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 FAX 203-891-2028 E-MAIL [email protected] WEB SITE http://www.krellonline.com Full Power Balanced X Series Power Amplifiers 700cx, 400cx, 300cx Stereo 750Mcx, 450Mcx, 350Mcx Monaural with Krell CAST II Technology v...
