Mackie HR824 MK2 Manual - Free PDF Download

Page 2 - ATTENTION; IMPORTANT SAFETY INSTRUCTIONS; WARNING — To reduce the risk of fire or; CAUTION AVIS

HR84 MK HR824 MK2 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. Use a non-scratch cloth to protect the finish. 7. Do not block any ventilation openings. Install in accor...

Page 3 - Owner’s Manual; Owner’; INTRODUCTION; Passive Radiator

Owner’s Manual Owner’ s Manual INTRODUCTION • The amplifiers are designed to provide maximum acoustic output from the speakers, yet minimize the danger of speaker damage due to overdriving. • In addition, the amplifiers’ gain and frequency re- sponses are individually hand-trimmed to compen-sate for...

Page 4 - QUICK START; AN EXTREMELY IMPORTANT NOTE; The ACOUSTIC SPACE switch

4 HR84 MK HR824 MK2 The Cabinet... The cabinet is made of MDF with a high-gloss piano- black finish. Internal bracing increases the strength and rigidity (stiffness) of the box. An open-cell adiabatic foam material fills the inside of the box to absorb inter-nal reflections and dampen standing waves...

Page 7 - HR84 MK THX pm Certification; Contents

Part No. 0022104 Rev. B1 11/07 ©2007 LOUD Technologies Inc. All Rights Reserved. Owner’s Manual Owner’ s Manual Monitor 1 Monitor 2 • Please write the serial number for your studio monitor here (all studio monitors if you have more than one) for future reference (i.e., insurance claims, tech support...

Page 8 - REAR PANEL DESCRIPTION; XLR

8 HR84 MK HR824 MK2 REAR PANEL DESCRIPTION . INPUT SENSITIVITY AUTO STANDBY ON ON ACOUSTIC SPACE LOW FREQ HIGH FREQ. POWER MODE NORMAL OFF HALF QUARTER WHOLE (NORMAL) 37Hz 80Hz 0 (NORMAL) – 2dB + 2dB 47Hz INPUT SENSITIVITY LOW CUT – 10dB (NORMAL) THX = NORMAL The HR824 MK2 expects a line-level signa...

Page 12 - FRONT PANEL DESCRIPTION; Overload Protect; PROTECTION CIRCUITS

1 HR84 MK HR824 MK2 FRONT PANEL DESCRIPTION Overload Protect • If you see the overload indicator [10] blinking more than just occasionally, it’s an indication that you should reduce the signal level coming from your mixer or other signal source. • The blinking overload indicator means the driver the...

Page 13 - Thermal Protect; CARE AND CLEANING

1 Owner’s Manual Owner’ s Manual Thermal Protect All amplifiers produce heat. The HR824 MK2 is de- signed to be efficient both electrically and thermally. • If for some reason the heatsinks get too hot, a thermal switch activates, placing the HR824 MK2 into Standby mode (indicated when the power rin...

Page 14 - SERVICE INFO; Troubleshooting; No Power; No Sound; I hear sound from the monitors after I switch

14 HR84 MK HR824 MK2 SERVICE INFO Details concerning Warranty Service are spelled out in the Warranty section on page 19. If you think your monitor has a problem, please check out the following troubleshooting tips and do your best to confirm the problem. Visit the Support section of our website (ww...

Page 15 - Repair; BIG PRINT

1 Owner’s Manual 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...

Page 16 - TECHNICAL INFORMATION; Amplifier Section; System Specifications; Transducers

1 HR84 MK HR824 MK2 TECHNICAL INFORMATION Amplifier Section Low-frequency power amplifier Rated Power (at 1 kHz with 1% THD): 150 watts Rated Load Impedance: 4 ohms Burst Power Output: 350 watts Rated THD (1W to –1 dB of rated power): 0.1 % Slew Rate: 35V/µS Distortion (THD, SMPTE IMD, DIM 100): <...

Page 17 - Acoustic Section; Rated Line Input Voltage and Power:; Physical Properties; Graphs

1 Owner’s Manual Owner’ s Manual Acoustic Section Free-Field Frequency Response: ±1.5 dB, 37 Hz to 20 kHz Lower cutoff frequency: –3 dB @ 35 Hz Upper cutoff frequency: –3 dB @ 22 kHz Sound Pressure Level at 1 meter, –7.5 dBu into balanced input: 100 dB SPL @ 1m Maximum peak SPL per pair: 120 dB SPL ...

Page 18 - HR84 MK Block Diagram

18 HR84 MK HR824 MK2 +2 dB 0 2 3 1 –2 dB HIGH FREQ. CLIP SENSE CLIP SENSE CIRCUIT HF TRANSDUCER THERMAL MODELER BALANCED LINE INPUTS UNBALANCED LINE INPUT SENSITIVITY COMPRESSOR CROSSOVER HI-FREQ WHOLEHALFQUARTER ACOUSTIC SPACE LO-FREQ SENSITIVE CALLOUS HF OUT LF TRANSDUCER THERMAL MODELER LF OUT TO...

Page 19 - Please keep your sales receipt in a safe place.

19 Owner’s Manual Owner’ s Manual HR824 MK2 Limited Warranty A. LOUD Technologies Inc. warrants all materials, workmanship and proper operation of this product for a period of one year from the original date of purchase. If any defects are found in the materials or workmanship or if the product fail...