Manuale d’uso / di manutenzione del prodotto 400cx del fabbricante Krell Industries
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Instructions for Use Owner ’ s Reference THE LEADER IN AUDIO ENGINEERING Full Power Balanced X Series Power Amplifiers 700cx, 400cx, 300cx Stereo 750Mcx, 450Mcx, 350Mcx Monaural with Krell CAST II T.
Full Power Balanced X Series Power Amplifiers 700cx, 400cx, 300cx Stereo 750Mcx, 450Mcx, 350Mcx Monaural with Krell CAST II T echnology v 02.0 Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 F AX 203-891-2028 E-MAIL krell@krellonline.
Page INTRODUCTION 1 DEFINITION OF TERMS 1 REVOLUTIONARY KRELL CAST and CAST II TECHNOLOGY 3 UNP ACKING 4 PLACEMENT 4 AC Power Guidelines 5 FRONT P ANEL DESCRIPTION 8 700cx, 400cx, and 300cx Stereo Pow.
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 .
The Full Power Balanced X Series consists of three stereo amplifiers, the Full Power Bal- anced 700cx, 400cx, and 300cx Stereo Power Amplifiers and three monaural amplifiers, the Full Power Balanced 750Mcx, 450Mcx, and 350Mcx Monaural Power Amplifiers.
2 Krell Full Powered Balanced X Series Power Amplifiers Definition of T erms, continued Single-ended A two-wire input or output circuit. Use care when using single-ended connections as the ground connection is made last and broken first. T urn the system off prior to making or breaking single-ended connections.
Krell Full Power Balanced X Series Power Amplifiers 3 Current Audio Signal Transmission, termed CAST , is a revolutionary method of connecting analog audio components for unparalleled sonic performance.
4 Krell Full Power Balanced X Series Power Amplifiers T wo people are needed to remove the Full Power Balanced amplifier from its shipping box safely and easily .
Krell Full Power Balanced X Series Power Amplifiers 5 AC POWER GUIDELINES The Full Power Balanced 300cx and 350Mcx amplifiers need to be operated from a dedicat- ed AC power line rated at a minimum of 15 amps.
FIGURE 1 FULL POWER BALANCED STEREO AMPLIFIER FRONT P ANEL 1 Power Stand-by LED 2 Bias LED 3 Power Button 4 Infrared Sensor 5 Krell CAST LED 6 Regulator LED 1 2 6 3 5 4 6 Krell Full Powered Balanced X.
FIGURE 2 FULL POWER BALANCED MONAURAL AMPLIFIER FRONT P ANEL 7 Power Stand-by LED 8 Bias LED 9 Power Button 10 Infrared Sensor 1 1 Krell CAST LED 12 Regulator LED 7 8 12 9 11 10 Krell Full Powered Bal.
8 Krell Full Power Balanced X Series Power Amplifiers The front panel accesses power on/stand-by and infrared sensor (remote control) functions. The power stand-by , bias, regulator , and Krell CAST LEDs, arranged in a triangle on the front panel above the power button, illuminate to indi- cate amplifier status.
FIGURE 3 FULL POWER BALANCED STEREO AMPLIFIER BACK P ANEL 13 Left and Right Speaker Binding Posts 14 Krell CAST Inputs 15 Back Panel Power Breaker Switch 16 Left and Right Balanced Inputs 17 Krell Lin.
FIGURE 4 FULL POWER BALANCED MONAURAL AMPLIFIER BACK P ANEL 20 Handle 21 Speaker Binding Posts 22 Krell CAST Input 23 Balanced Input 24 AC Mains Power Cord 25 Krell Link Out/In 26 Back Panel Power Bre.
Krell Full Power Balanced X Series Power Amplifiers 1 1 The back panel provides connections for all inputs and outputs, power on/off, and remote control links.
12 Krell Full Power Balanced X Series Power Amplifiers FULL POWER BALANCED 750Mcx, 450Mcx, AND 350Mcx MONAURAL POWER AMPLIFIERS See Figure 4 on page 10 20 Handle All Full Power Balanced monaural amplifiers are equipped with a handle, located beside the speaker binding posts, to help you easily and safely move the amplifier .
Krell Full Power Balanced X Series Power Amplifiers 13 INPUT AND OUTPUT CONNECTIONS Krell recommends using its proprietary Krell CAST system for unparalleled sonic perfor- mance between the Full Power Balanced amplifiers and other CAST -equipped compo- nents and the KPS 25sc Krell Playback Sys- tem.
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. T o link another component, connect a sec- ond MIDI cable to the Krell Link out con- nector on the back panel of the second component.
Krell Full Power Balanced X Series Power Amplifiers 15 Full Power Balanced amplifiers are easy to install and operate. However , it is important to exercise care during operation, due to the amplifiers ’ enormous power output.
16 Krell Full Power Balanced X Series Power Amplifiers Full Power Balanced amplifiers are compatible with the remote controls included with Krell pre- amplifiers, the Home Theater Standard 7.
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. When you mix and match audio components, each with its own ground potential, a low frequency hum may occur in one or both speakers.
AMPLIFIER CONDITION The output mutes during playback and the following LEDs illuminate: Power Stand-by , and Regulator Bias The amplifier switches to stand-by mode and the Power Stand-by LED illuminat.
Krell Full Power Balanced X Series Power Amplifiers 19 Q. Should I leave my Full Power Balanced amplifier on at all times? A. For maximum amplifier performance, leave the back panel power breaker switch on at all times. This places the amplifier in stand-by mode.
This Krell product has a limited warranty of five years for parts and labor on circuitry . Should this product fail to per- form at any time during the warranty , Krell will repair it at no cost to the owner , except as set forth in this warranty . The warranty does not apply to damage caused by acts of God or nature.
Krell Full Power Balanced X Series Power Amplifiers 21 If you believe there is a problem with your com- ponent, please contact your dealer , distributor , or the Krell factory to discuss the problem before you return the component for repair .
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.
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.
Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 F AX 203-891-2028 E-MAIL krell@krellonline.com 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 T echnology v 02.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Krell Industries 400cx è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Krell Industries 400cx - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Krell Industries 400cx imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Krell Industries 400cx ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Krell Industries 400cx, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Krell Industries 400cx.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Krell Industries 400cx. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Krell Industries 400cx insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
