Manuale d’uso / di manutenzione del prodotto 112 del fabbricante JEFF ROWLAND
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Model 112 Stereo Power Amplifier Owner’s Manual Model 112 Model 112 Stereo Power Amplifier Stereo Power Amplifier Owner’s Manual Owner’s Manual.
Introduction Introduction W W elcome to the Jeff Rowland Design Group “family” and congratulations on your purchase of what is unquestionably one of the world’s finest audio power amplifiers.
Product Features Product Features • XLR input connectors for balanced (Differential Mode ) system configuration. • RCA input Connectors for unbalanced system configurations. • Selectable overall gain of 26 or 32 dB. • User selectable switching between balanced and unbalanced connections.
Contents Contents Model 112 Stereo Model 112 Stereo Power Amplifier Power Amplifier Warra Warra nty Card nty Card AC Power Cable AC Power Cable.
Initial Inspection Initial Inspection I I nspect the shipping container for damage. If the shipping container, packing material, amplifier, or accessories are damaged or m issing, notify your dealer and the shipper (if a claim is to be made) immediately.
Care, Cleaning, and Maintenance Care, Cleaning, and Maintenance NEUT RIK PUSH NEUT RIK PUSH.
Care Care T T he Model 112 Stereo Power Amplifier is finely constr ucted from pieces of solid aluminum. The surface of the unit is cut in a unique process that uses a diamond tipped blade. This process was refined over many years to produce an artistic and attractive finish.
Amplifier Front and Rear Panel Function Controls Amplifier Front and Rear Panel Function Controls NEUTRIK P US H NEUTRIK P US H Standby/Power Button Standby/Power Button Power Indicator LED Power Indi.
Amplifier Front and Rear Panel Function Controls Amplifier Front and Rear Panel Function Controls B B efore attempting any system interconnection, please famili arize yourself with the front and rear panel controls of the Model 112 Stereo Power Amplifier.
Rear Panel Power Connections Rear Panel Power Connections Amplifier Rear Panel NEUTRI K PUSH NEUTRI K PUSH AC Power Cable AC Power Cable Connector Connector Volts AC Volts AC Indicator Indicator.
Installation Installation L L ocate the amplifier as close as possible to its final installation point. Allow access to the rear panel for making connections. The Model 112 Stereo Power Amplifier is convection cooled, eliminating the need for fan or forced - air cooling.
Signal Connections and Remote Signal Connections and Remote Amplifier Rear Panel NEUTRI K PUSH NEUTRI K PUSH Balanced Input Balanced Input Connector Connector 12V Remote 12V Remote Connector Connector.
Signal Connections Signal Connections T T he Model 112 Stereo Power Amplifier offers unprecedented compatibility with associated audio components. When Connecting or disconnecting speaker or intercon nect cables, it is necessary to place the amplifier in Standby mode (orange POWER INDICATOR LED on the front panel OFF).
Internal Function Controls Internal Function Controls Overall Gain Overall Gain T T he overall gain of the Model 112 Stereo Power Amplifier can be adjusted between 26 dB and 32 dB.
Model 112 Stereo Power Amplifier Specifica Model 112 Stereo Power Amplifier Specifica tions tions Output Power: Output Power: Continuous RMS watts @ 8 ohms 150 watts @ 4 ohms 275 watts Power Bandwidth: Power Bandwidth: DC to 160 kHz, - 3 dB Slew Rate: Slew Rate: 30 volts/microsecond THD + Noise: THD + Noise: <.
Basic Troubleshooting Basic Troubleshooting A A summary of fault conditions and their causes and remedies are listed below. The Model 112 Stereo Power Amplifier can produce high power levels that, without well - designed protection circuitry, could damage loudspeakers.
Additional Information Additional Information I I f you have any additional questions regarding the installa tion or operation of the Model 112 Stereo Power Amplifier, please contact your authorized Jeff Rowland Design Group dealer or check the Jeff Rowland Design Group web site at http://www.
Post Office Box 7231 Colorado Springs, Colorado 80933 USA.
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 JEFF ROWLAND 112 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 JEFF ROWLAND 112 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso JEFF ROWLAND 112 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul JEFF ROWLAND 112 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il JEFF ROWLAND 112, 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 JEFF ROWLAND 112.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il JEFF ROWLAND 112. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo JEFF ROWLAND 112 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.