Instruction/ maintenance manual of the product 12 Jeff Rowland Design Group
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Model 12 Mono Power Amplifier Owner’s Manual Model 12 Mono Power Amplifier 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 bal anced (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 12 Model 12 Amplifier Amplifier Section Section Model 12 Model 12 Power Power Supply Supply DC Power DC Power Supply Cable Supply Cable AC Power Cable AC Power Cable Warranty C.
Initial Inspection Initial Inspection I I nspect the shipping container for damage. If the shipping container, packing material, amplifier, or accessories are dama ged or missing, notify your dealer and the shipper (if a claim is to be made) immediately.
Care, Cleaning, and Maintenance Care, Cleaning, and Maintenance.
Care Care T T he Model 12 Mono Power Ampli fier is finely constructed 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 Amplifier Front Panel Amplifier Front Panel Amplifier Rear Panel NEUTR IK NEUTRIK PUSH Standby/Power B.
Amplifier Front and Rear Panel Function Cont Amplifier Front and Rear Panel Function Cont rols rols B B efore attempting any system interconnection, please familiarize yourself with the front and rear panel controls of the Model 12 Mono Power Amplifier.
Rear Panel Power Connections Rear Panel Power Connections Amplifier Rear Panel NEUTR IK NEUTRIK PUSH Power Supply Re ar Panel AC Power Cable AC Power Cable Connector Connector DC Power Supply DC Power.
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 12 Mono Power Amplifier is convection cooled, eliminating the need for fan or forced - air c ooling.
Signal Connections and Remote Signal Connections and Remote Amplifier Rear Panel NEUTR IK NEUTRIK PUSH Power Supply Rear Panel Balanced Input Balanced Input Connector Connector 12V Remote 12V Remote C.
Signal Connections and Remote Signal Connections and Remote T T he Model 12 Mono Power Amplifier offers unprecedented compatibility with associated audio components. When Connecting or disconnecting speaker or interconnect cables, it is n ecessary to place the amplifier in Standby mode (orange POWER INDICATOR LED on the front panel OFF).
Parallel Connection Diagram Parallel Connection Diagram NEUT RIK NEUTR IK PUS H NEUTR IK NEUTR IK PUSH + and – Speaker Wire Outputs to Loudspeakers XLR Interconnect from Preamp Output 0.5 Meter Speaker Cable Jumper from + to + 0.5 Meter Speaker Cable Jumper from – to – 0.
Parallel Connection Instructions Parallel Connection Instructions The Model 12 Mono Power Amplifier provides 200 watts of audio output power, sufficient to drive nearl y any loudspeaker. In a few instances, there may be a need for more output current in order to drive a very low impedance or current demanding loudspeaker.
Internal Function Controls Internal Function Controls Overall Gain Overall Gain T T he overall gain of the Model 12 Mono Power Amplifi er can be adjusted between 26 dB and 32 dB.
Model 12 Mono Power Amplifier Specifications Model 12 Mono Power Amplifier Specifications Output Power: Output Power: Continuous RMS watts @ 8 ohms 200 watts @ 4 ohms 350 watts Power Bandwidth: Power Bandwidth: DC to 160 kHz, - 3 dB Slew Rate: Slew Rate: 30 volts/microsecond THD + THD + Noise: Noise: <.
Basic Troubleshooting Basic Troubleshooting A A summary of fault conditions and their causes and remedies are listed below. The Model 12 Mono Power Amplifier can produce high power levels that, without well - designed protection circuitry, could damage loudspeakers.
Additional Additional Information Information I I f you have any additional questions regarding the installation or operation of the Model 12 Mono 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.
An important point after buying a device Jeff Rowland Design Group 12 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Jeff Rowland Design Group 12 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Jeff Rowland Design Group 12 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Jeff Rowland Design Group 12 you will learn all the available features of the product, as well as information on its operation. The information that you get Jeff Rowland Design Group 12 will certainly help you make a decision on the purchase.
If you already are a holder of Jeff Rowland Design Group 12, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Jeff Rowland Design Group 12.
However, one of the most important roles played by the user manual is to help in solving problems with Jeff Rowland Design Group 12. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Jeff Rowland Design Group 12 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
