User manual MCINTOSH MA6450

[. . . ] OWNERS MANUAL MA6450 Integrated Amplifier MA6450 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549 Thank You, Please Take A Moment, Customer Service and Table of Contents Thank You For your decision to own this McIntosh MA6450 Integrated Amplifier ranks you at the very top among discriminating music listeners. The McIntosh dedication to Quality, is assurance that you will receive many years of musical enjoyment from this unit. We want you to be as familiar as possible with all the features and functions of your new McIntosh MA6450. [. . . ] The equipment does not operate normally by following the operating instructions contained within this owners manual. Adjust only those controls that are covered by the operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation. The equipment exhibits a distinct change in performance - this indicates a need for service. Do not attempt to service beyond that described in the operating instructions. When replacement parts are required, be sure the service technician has used replacement parts specified by McIntosh or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. · 100 Watt per Channel Integrated Amplifier The MA6450 combines 100 watt per channel power amplifier with a sophisticated control center in one compact unit. · Multiple Inputs Seven high level inputs provide for all popular program sources. Tone Control Bypass At the flat settings the Bass and Treble control circuit elements are removed from the Listen signal path. Active Loudness Circuity A continuously variable active Loudness control allows any degree of loudness compensation. All Loudness circuit elements are removed from the signal path in the flat setting. Performance Features · · · Electronic Input Switching Digital Logic integrated circuits drive Electromagnetic switches on all inputs and operating functions for reliable, noiseless, distortion free switching Illuminated Peak Responding Output Meters Output meters respond to 95% of full scale reading with a single cycle of a 2KHz tone burst to indicate output power with high accuracy. · · Power Guard with Sentry Monitor Patented McIntosh Power Guard circuit that prevents the amplifier from being overdriven into clipping with its harsh distorted sound that can also damage your valuable loudspeakers. Sentry Monitor power output stage protection circuits ensure the MA6450 will have a long and trouble free operating life. · Speaker Switching Front panel Speakers push-buttons control two pairs of speakers. Special Power Supply Fully regulated power supply with a shielded power transformer ensures stable noise free operation. Introduction The remote controlled MA6450 is a sophisticated, yet easy to operate Integrated Amplifier that will provide the superior fidelity music reproduction that is traditional from McIntosh. It includes a wide range of convenient operating functions to enhance your listening enjoyment. The classic McIntosh MA6450 will perfectly complement a pair of McIntosh Loudspeakers for a stereo system of incomparable performance and style. 4 · Installation Installation The MA6450 can be placed upright on a table or shelf, standing on its four feet. It also can be custom installed in a piece of furniture or cabinet of your choice. The required panel cutout, ventilation cutout and unit dimensions are shown. Cool operation ensures the longest possible operating life for any electronic instrument. Do not install the MA6450 directly above a heat generating component such as a high powered amplifier. If all the components are installed in a single cabinet, a quiet running ventilation fan can be a definite asset in maintaining all the system components at the coolest possible operating temperature. A custom cabinet installation should provide the following minimum spacing dimensions for cool operation. Refer to information on the back panel to determine the correct voltage. UNSWITCHED outlet stays on all the time 6 VIDEO, inputs for audio signals from a LD, VCR, TV or the optional MVS-3 A/V Selector SPEAKERS 1 and SPEAKERS 2 allow two pairs of speakers to be connected POWER CONTROL Output sends a turn-on signal to a McIntosh Component The EXT (external) Sensor for a McIntosh IR sensor How to Connect the MA6450 How to Connect the MA6450 1. [. . . ] During the tape copy process, you can listen to tape playback by pressing a TAPE MON push-button. Refer to Figure 1. NOTE: You can also listen to any other signal source while copying a tape. 0. 01 - 11 HR033 Push-Buttons HR033 Push-Buttons Select any of the five high level audio sources Selects any one of five externaly switched Audio/ Video Program Sources Select AM tuner operating functions Selects tuner stations presets and certain McIntosh CD Players. Selects Tape Monitor 1 or 2 Use to select tuner presets or any numbered operation. Select two pairs of speakers Press to turn off the MA6450 Press to turn the MA6450 ON or OFF Mutes the audio Adjusts the volume level up or down Turns power ON to a component connected via the Data Port. Note: The HR033 Remote Control push-buttons that are shown in black only work with other McIntosh Products. 12 How to Operate the HR033 How to Operate HR033 Mute Press MUTE to mute the audio signals at the MAIN OUTPUTS and SPEAKERS. [. . . ]