User manual MACKIE HR824

[. . . ] HR824 HIGH RESOLUTION ACTIVE STUDIO MONITOR OWNER'S MANUAL OL PWR ON HIGH RESOLUTION STUDIO MONITOR CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL 9. Power Cord Protection -- Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit this Mackie product. Object and Liquid Entry -- Care should be taken so that objects do not fall into and liquids are not spilled into this Mackie product. Damage Requiring Service -- This Mackie product should be serviced only by qualified service personnel when: A. [. . . ] · Perhaps you have hearing loss caused by too many nights in front of a double Marshall stack. If your mixes consistently sound dull or dark when you listen elsewhere, this usually indicates that your monitors are too bright, relative to your normal hearing. A bit less high-frequency energy usually fixes this, and you can force the mix in this direction by reducing the highfrequency output of the monitors by using the ­2 dB position of the switch. FREE FIELD ACOUSTIC RESPONSE 1k ­10dB ­3dB 37Hz + 1. 5dB 39Hz 20kHz ­ ­ 22 kHz ­3dB OFF NORMAL A B C WHOLE (NORMAL) QUARTER HALF 80Hz 47Hz 37Hz LOW CUT (NORMAL) ­2dB 0 +2dB (NORMAL) STANDBY AUTO ON ON INPUT SENSITIVITY ACOUSTIC SPACE LOW FREQ HIGH FREQ. TM R POWER MODE LISTED COMMERCIAL AUDIO EQUIPMENT 9Z39 INTERNAL BI·AMPLIFICATION 150W. H. F. "MACKIE", "FR SERIES", AND THE "RUNNING MAN" FIGURE ARE REGISTERED TRADEMARKS OF MACKIE DESIGN INC. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT AVIS: RISCQUE DE CHOC ÉLECTRIQUE -- NE PAS OUVRIR PATENT NO: DES. 387, 351 SERIAL NUMBER EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. REFER SERVICING TO QUALIFIED PERSONNEL. CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC · WOODINVILLE · WA · USA MADE IN USA · PATENTS PENDING · © 1997 MACKIE DESIGNS INC. ALL RIGHTS RESERVED SIGNAL INPUTS BAL/UNBAL PHONE XLR RCA MAINS INPUT 120VAC 60 Hz 150W 9 Conversely, if your mixes are consistently too bright, then adding some additional high frequency energy in the monitors satisfies your ears, and the resultant mix has less HF content. The timbre of your monitors affects the way that your mixes play on other equipment. Remember that the monitors have a mirroring effect on the mix; if the monitors make something too loud in the mix it usually results in not enough of that thing on tape. Start with the response modification switches in the factory recommended settings (see Quick Start Section ). After prolonged listening, if you notice a trend in your mixes, perhaps making some small adjustments as suggested here will help. But remember that the resulting mix only sounds good when you play it at least that loud. However strange it may sound, mixes made at lower levels sound even better when played loud; perhaps even a bit bigger than life. Get that sound level meter out. Decide what level you're going to mix at and use the meter to help keep your mixing at that level. Your ears will thank you, and your mixes will be better for it. POWER MODE STANDBY AUTO ON ON POWER MODE ® HIGH RESOLUTION STUDIO MONITOR This 3-position switch turns the amplifiers on or off, or sets them to automatic mode. Use this switch to set the HR824s to your preferred mode of operation, and use the front panel switch for convenience. power · In the STANDBY position, the power amplifiers are in Standby mode and produce no sound. Low-level circuitry is still active, but the power consumption of the circuitry is minimal (8 watts). · Flip the switch to the ON position and the power amplifiers are live and operate normally. (The front panel power switch must also be ON. ) · Since the power supply and low level circuitry are already active (assuming the speaker is plugged into a live outlet), this is an "instant on" function. · When it's in the AUTO ON position, the amplifiers turn on and off depending on the presence or absence of an input signal. An ACOUSTIC SPACE APPLICATIONS QUARTER SPACE CONSOLE HALF SPACE CONSOLE WHOLE SPACE CONSOLE SPEAKERS IN CORNERS SPEAKERS AGAINST WALL SPEAKERS AWAY FROM WALLS A B C LOW CUT LOW CUT 24dB/oct BUTTERWORTH 10kHz 0dB ­3dB 37Hz 47Hz 80Hz 0dB ­2dB ­4dB 20 100Hz +2dB 0dB ­2dB OL HIGH FREQ. LOW FREQ · USE 80Hz TO EMULATE SMALL SPEAKER · USE 47Hz FOR NORMAL LF PERFORMANCE · USE 37Hz FOR NORMAL EXTENDED LOW FREQ PERFORMANCE ACOUSTIC SPACE ROOM COMPENSATION PWR · 0dB (START HERE) GUARANTEED FLAT USE FOR MOST APPLICATIONS · +2dB: USE IF YOUR MIXES TRANSLATE BRIGHT · ­2dB: USE IF YOUR MIXES TRANSLATE DULL FREE FIELD ACOUSTIC RESPONSE 1k ON 22 kHz ­10dB ­3dB 37Hz + 1. 5dB 39Hz 20kHz ­ ­ ­3dB OFF NORMAL A B C WHOLE (NORMAL) QUARTER HALF 80Hz 47Hz 37Hz LOW CUT (NORMAL) ­2dB 0 +2dB (NORMAL) STANDBY AUTO ON ON INPUT SENSITIVITY ACOUSTIC SPACE LOW FREQ HIGH FREQ. TM R POWER MODE LISTED COMMERCIAL AUDIO EQUIPMENT 9Z39 INTERNAL BI·AMPLIFICATION 150W. [. . . ] This paragraph does not necessarily apply to non-warranty service. Repair Service for the U. S. versions of our monitors is available only from our factory, located in sunny Woodinville, Washington. (Service for monitors living outside the United States can be obtained through local dealers or distributors. ) If your monitor needs service, follow these instructions: 15 Technical Information HR824 Block Diagram +15VDC POWER MODE ON SWITCH AUTO STANDBY THERMAL SWITCH LOW AC VOLTS SENSE POWER SWITCH (FRONT PANEL) OVERLOAD LED CLIP SENSE CLIP SENSE CIRCUIT PWR LED MUTE ON/OFF CONTROL Vref SIGNAL SENSE MUTE HIGH = MUTE OFF LOW = MUTE ON UNBALANCED LINE INPUT 1 2 3 HF OUT HIGH FREQ. +2 dB 0 ­2 dB SENSITIVITY SENSITIVE HF TRANSDUCER THERMAL MODELER CROSSOVER TO CLIP SENSE HI-FREQUENCY POWER AMPLIFIER HI-FREQ HF OUT HI-FREQUENCY DRIVER COMPRESSOR LO-FREQ TWEET BALANCED LINE INPUTS LF OUT CALLOUS LF TRANSDUCER THERMAL MODELER MUTE ACOUSTIC SPACE TO CLIP SENSE LOW FREQ WHOLE HALF QUARTER 37Hz (NORMAL) 47Hz 80Hz LO-FREQUENCY POWER AMPLIFIER LF OUT LO-FREQUENCY DRIVER OUTER SPACE WOOF MOTION DETECTOR FUSE MUTE BASS CONTROL SERVO LOOP + MID VDC ­ + ­ HI VDC SENSE RESISTOR MACKIE DESIGNS HR824 THX BLOCK DIAGRAM (#110200DF) TOROIDAL POWER TRANSFORMER + LO VDC ­ Specifications Enclosure Materials and Construction: 3/4-inch (19mm) thick MDF construction with 1-inch (25. 4mm) thick MDF front panel with radiused edges to minimize diffraction. 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