User manual MCINTOSH C50

[. . . ] McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www. mcintoshlabs. com C50 Audio Preamplifier Owner's Manual The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. [. . . ] However, the Phono Inputs may be switched Off. Only one Input may be assigned at a time to a Balanced (1 & 2) or Digital (1 thru 4) Connector. If an already assigned Balanced or Digital connector is to be reassigned to a different Input, the Input currently assigned to the connector first needs to be changed. It can be set to a RCA connector or to another available Balanced or Digital connector. 13 Reassign Source Inputs, con't 1. Press and hold the EQ BYPASS/SETUP Pushbutton until the Setup Mode is active. Then press the OUTPUT 2 / MENU Push-button to select the Setup Menu item "SETUP: SOURCE INPUT, TUNER :RCA". Rotate the VOLUME/ADJUST Control until "SRVR : DIGITAL 1" appears on the Front Panel Information Display. Record Input Level Adjustment Source Components can have slightly different volume levels resulting in the need to readjust the C50 Volume Control when switching between different sources. The C50 allows the adjustment of levels for each of the Source Inputs for the same relative volume. The CD and SERVER Inputs are used in the following example. SETUP: SOURCE INPUT TUNER : RCA Figure 4 SETUP: SOURCE INPUT SRVR : DIGITAL 1 Figure 8 2. Rotate the INPUT Control until "CD2 : RCA" appears on the Front Panel Information Display. Refer to figure 5. any changes made to the various inputs from the default settings in the "Input and Power Control Settings" chart for future reference. To exit from the Setup Mode, press the EQ BYPASS/SETUP Push-button. SETUP: SOURCE INPUT CD2 : RCA Figure 5 3. Rotate the VOLUME/ADJUST Control until "CD2 : BALANCED 1" appears on the Front Panel Information Display. Refer to figure 6. SETUP: SOURCE INPUT CD2 : BALANCED 1 Figure 6 1. Rotate the INPUT Control to select the CD Input and adjust the VOLUME Control to the desired listening level. Press and hold the EQ BYPASS/SETUP Pushbutton until the Setup Mode is active. Then press the OUTPUT 2 / MENU Push-button until the Setup Menu item "LEVEL: CD 0. 0dB" appears on the Front Panel Information Display. Refer to figure 9. Note: The range of adjustment is ± 6dB. The signal Level present at the RECORD OUT Jacks is unaffected by any changes in the Setup Level adjustment. The level adjustments made are retained in permanent memory. They can be changed during operation of the C50 by performing a Trim Level Procedure, refer to page 19 for additional information. The second example will illustrate reassigning the SRVR (Server) Input from SRVR/REC Input (RCA Jacks) to the DIGital 1 Optical Input. [. . . ] Refer to figure 74. Fundamental Frequencies of Acoustical Musical Instruments and the Human Voice SOPRANO CONTRALTO TENOR BARITONE BASS PICCOLO FLUTE OBOE ENGLISH HORN B CLARINET BASS CLARINET ALTO SAXOPHONE IN B BASSOON CONTRABASSOON B TRUMPET FRENCH HORN IN F TENOR TROMBONE BASS TROMBONE IN F TUBA SMALL MEDIUM LARGE HARP GUITAR VIOLIN VIOLA CELLO BASS PIANO STRINGS KETTLE DRUMS BRASS WOODWINDS SINGING VOICE 25Hz 50Hz 100Hz 200Hz 400Hz 1kHz 2. 5kHz 10kHz 22 How to Operate the C50, con't PASSTHRU The C50 OUTPUT 1 / OUTPUT 2 Front Panel Pushbuttons are active when in the Passthru Mode. The other of the Front Panel Controls and Push-buttons are deactivated as long as the Passthru Mode is active Optical and Digital Inputs When a Digital Input (Optical or Coxial Connection) on the C50 is selected the Front Panel Information Display will indicate when a signal is present "2CH PCM". During the time there is no Figure 74 When a disc in the computer is playing back, the PLAY, PAUSE , NEXT TRACK: , BACK TRACK 9 and Stop < Push-buttons on the McIntosh HR072 will control playback of the disc. Note: When computer application programs and various computer hardware components conform to the Microsoft® Windows® and Apple® Macintosh® standards they should also work well when used in conjunction with the C50 USB Input. If you are experiencing difficulty with a specific computer hardware component or computer application program, contact the manufacturer of the product. 1. [. . . ]