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HR824 MK2
High Resolution Active Studio Monitor
O W N E R ’ S M A N U A L
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IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 13.Unplug this apparatus during lightning storms or when unused for long periods of time. 2. Keep these instructions. 14.Refer all servicing to qualified service personnel. Servicing is required 3. Heed all warnings. when the apparatus has been damaged in any way, such as power- 4. Follow all instructions. supply cord or plug is damaged, liquid has been spilled or object
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Owner’s Manual INTRODUCTION Thank you for choosing the Mackie HR824 MK2 Studio • The amplifiers are designed to provide maximum Monitors. We began producing the original HR824 acoustic output from the speakers, yet minimize Studio Monitors in 1997, and they quickly became the the danger of speaker damage due to overdriving. standard by which near-field studio reference monitors • In addition, the amplifiers’ gain and frequency re- were compared for extremely flat frequency response at spo
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1. Connect the line-level monitor signal from your mixer, The Cabinet... preamp, or other signal source to the SIGNAL INPUT [1] jack on the HR824 MK2 Studio Monitor (1⁄4-inch The cabinet is made of MDF with a high-gloss piano- PHONE, XLR, or RCA). black finish. Internal bracing increases the strength and 2. Connect the supplied AC power cord to the IEC socket rigidity (stiffness) of the box. An open-cell adiabatic [7] on the back of the monitor. Plug the other end into foam material fills
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Owner’s Manual ™ INTERNAL BI•AMPLIFICATION 150W. L.F. / 100W. H.F. QUARTER SPACE HALF SPACE WHOLE SPACE CONSOLE CONSOLE CONSOLE SPEAKERS IN CORNERS SPEAKERS AGAINST WALL SPEAKERS AWAY FROM WALLS A B C ACOUSTIC SPACE APPLICATIONS LOW CUT LOW CUT 10kHz 24dB/oct BUTTERWORTH 0dB +2dB 0dB –2dB –3dB 0dB 4dB – 2dB – 37Hz 47Hz 80Hz 20 100Hz LOW FREQ ACOUSTIC SPACE HIGH FREQ DESIGNED BY MACKOIDS IN WOODINVILLE, WA, USA • MANUFACTURED IN CHINA • FABRIQUE EN CHINE • COPYRIGHT ©2005 "MACKIE", "FR SERIES"
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Feel free to experiment. Placement In many respects, every room is unique in terms of its The HR824 MK2s were designed to be placed in a acoustics. vertical position. If you find it necessary to place the speakers in a horizontal position (on their sides), place Even after you’ve read about how to set the HR824 them so that the woofers are toward the inside; that is, MK2’s rear panel switches, try other settings to see if so the woofers are closest to each other. This provides your partic
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Owner’s Manual standard is becoming a competitive fact of life. Again, THX has a singular solution and this time it’s called Contents THX pm3 Certification. All facilities involved with mixing and/or monitoring IMPORTANT SAFETY INSTRUCTIONS ........... of multi-channel material should have the option to use INTRODUCTION.................................................. pm3. THX pm3 Certification is ideal for DVD mastering, sweetening, and mixing; and is also perfect for facilities QUIC
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REAR PANEL DESCRIPTION This is where you connect your signal to the monitor, . INPUT SENSITIVITY and make adjustments to the frequency response of the speakers to match the monitor’s location and your –10dB room’s environment. For THX applications, the rear panel OFF NORMAL switches and controls should be set 80Hz 37Hz + 47Hz –2dB 0 2dB STANDBY ON ( ) LOW CUT NORMAL (NORMAL) AUTO to the THX positions as indicated in QUARTER HALF WHOLE ON (NORMAL) INPUT this section. ACOUSTIC SPACE LOW FRE
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Owner’s Manual Removing the low-frequency content also allows 4. LOW FREQ FILTER –10dB you to raise the overall output level somewhat. Low- frequency information requires the largest amount of an amplifier’s output, so restricting the low-frequency content allows raising the mid-frequency level some- OFF NORMAL 80Hz 47Hz 37Hz –2dB 0 +2dB STANDBY ON ( ) ( ) what. If your client insists on mixing LOUD, this may be LOW CUT NORMAL NORMAL AUTO QUARTER HALF WHOLE ON (NORMAL) INPUT a workable strat
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Conversely, if your mixes are consistently too bright, . POWER MODE –10dB then adding some additional high-frequency energy in the monitors satisfies your ears, and the resultant mix has less HF content. OFF NORMAL + 80Hz 47Hz 37Hz –2dB 0 2dB STANDBY ON The timbre of your monitors affects LOW CUT (NORMAL) (NORMAL) AUTO QUARTER HALF WHOLE ON the way that your mixes play on other ( ) NORMAL INPUT ACOUSTIC SPACE LOW FREQ HIGH FREQ. POWER MODE SENSITIVITYequipment. Remember that the moni- tors
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Owner’s Manual • When the POWER MODE [6] switch is in the ON • Simple ports or ducts must have sufficient surface position (and the front panel power switch [9] is in the area to prevent the velocity of the air within them from IN position), applying AC power activates the muting exceeding 5% of the speed of sound, which keeps the circuit for about four seconds while the power supply vent from becoming audible (breathing and wheezing and internal circuitry stabilize, then the HR824 MK2 soun
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FRONT PANEL DESCRIPTION 9. Power Switch Use this switch to turn on or off the HR824 MK2 from –10dB the front. It works with the POWER MODE [6] switch on the rear panel in the following way: OFF • N IORMA f the LPOWER MODE switch on the rear panel is set 80Hz 47Hz 37Hz –2dB 0 +2dB STANDBY ON LOW CUT (NORMAL) (NORMAL) AUTO to STANDBY, the front panel power [9] switch has no QUARTER HALF WHOLE ON ( ) NORMAL INPUT effect. The power [10] ring remains off. SENSITIVITY ACOUSTIC SPACE LOW FREQ HIGH
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Owner’s Manual Thermal Protect CARE AND CLEANING All amplifiers produce heat. The HR824 MK2 is de- Remove the protective plastic film that encases the signed to be efficient both electrically and thermally. cabinet. • If for some reason the heatsinks get too hot, a thermal Note: You may leave the protective switch activates, placing the HR824 MK2 into Standby plastic film on the cabinet if you mode (indicated when the power ring [10] turns off). wish, or you can remove all but the • Shoul
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Bad Sound SERVICE INFO • Is the input connector plugged completely into the 1 jack? If using a ⁄4" TS or TRS plug, make sure it is Details concerning Warranty Service are spelled out in plugged all the way in. the Warranty section on page 19. • Is it loud and distorted? Reduce the signal level at the If you think your monitor has a problem, please check mixer. out the following troubleshooting tips and do your best • If possible, listen to the signal source with headphones to confirm the
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Owner’s Manual Repair If your HR824 MK2 needs service, follow these instructions: 1. Review the preceding troubleshooting suggestions. Please. 2. Call Tech Support at 1-800-898-3211, 7 am to 5 pm PST, to explain the problem and obtain a Service Request Number. Have your HR824 MK2’s serial number ready. (Service for Mackie products living outside the United States can be obtained through local dealers or distributors.) You must have a Service Request Number before you can obtain factory-a
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TECHNICAL INFORMATION Amplifier Section HR824 MK2 Specifications Low-frequency power amplifier Rated Power (at 1 kHz with 1% THD): Enclosure 150 watts Rated Load Impedance: 4 ohms Materials and Construction: 3 Burst Power Output: 350 watts ⁄4-inch (19 mm) thick MDF cabinet construction with internal Rated THD (1W to –1 dB of rated power): bracing to add to cabinet stiffness. 0.1 % Piano-black gloss finish. Slew Rate: 35V/µS Die-cast aluminum exponential wave guide for contr
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Owner’s Manual Graphs Acoustic Section Free-Field Frequency Response: HR824 Acoustic Space Filter Response ±1.5 dB, 37 Hz to 20 kHz ® +5 +4 Lower cutoff frequency: –3 dB @ 35 Hz +3 +2 Upper cutoff frequency: –3 dB @ 22 kHz +1 -0 -1 Sound Pressure Level at 1 meter, -2 -3 –7.5 dBu into balanced input: 100 dB SPL @ 1m -4 d B -5 Maximum peak SPL per pair: 120 dB SPL @ 1m u -6 -7 Maximum short term SPL on axis, -8 -9 half space 80 Hz to 2.5 kHz: 111 dB SPL @ 1m -10 -11 Residual noise (maximum
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HR84 MK Block Diagram +15VDC POWER MODE SWITCH ON MUTE V AUTO ref ON/OFF MUTE STANDBY HIGH = MUTE OFF CONTROL LOW = MUTE ON SIGNAL THERMAL SENSE SWITCH LOW AC POWER RING VOLTS SENSE (POWER = WHITE OVERLOAD = RED) POWER SWITCH (FRONT PANEL) CLIP SENSE CLIP SENSE CIRCUIT TO CLIP HF TRANSDUCER SENSE HI-FREQUENCY HF OUT UNBALANCED HI-FREQUENCY THERMAL MODELER DRIVER HF OUT LINE POWER AMPLIFIER HIGH FREQ. INPUT CROSSOVER +2 dB HI-FREQ 2 1 TWEET 0 COMPRESSOR LO-FREQ 3 –2 dB BALANCED SENSITIVITY LINE
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Owner’s Manual HR824 MK2 Limited Warranty Please keep your sales receipt in a safe place. F. Any products returned to one of the LOUD Technologies A. LOUD Technologies Inc. warrants all materials, factory-authorized service centers and deemed eligible for workmanship and proper operation of this product for a period repair or replacement under the terms of this warranty will of one year from the original date of purchase. If any defects be repaired or replaced within thirty days of receipt
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16220 Wood-Red Road NE • Woodinville, WA 98072 • USA United States and Canada: 800.898.3211 Europe, Asia, Central and South America: 425.487.4333 Middle East and Africa: 31.20.654.4000 Fax: 425.487.4337 • www.mackie.com E-mail: sales@mackie.com
