HRS120 HIGH RESOLUTION POWERED SUBWOOFER OWNER’S MANUAL INPUT/OUTPUT STANDARD SETTINGS SUBSONIC FILTER POWER SUB BYPASSED FILTER BYPASS FLAT 15Hz SUBSONIC FILTER ( FILTER SELECT FILTER BYPASS FILTER IN FULL RANGE FILTER SELECT VARIABLE 110Hz ELLIPTICAL 5.
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 ATTENTION: POUR EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE.
Lend Me Your Ears Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably in susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a period of time. The U.S. Government’s Occupational Safety and Health Administration (OSHA) has specified the permissible noise level exposures shown in this chart. Duration Per Day In Hours Sound Level dBA, Slow Response 8 6 4 3 2 1.5 1 0.5 0.
QUICK START We realize that you can’t wait to hook up your new Mackie Designs HRS120 High Resolution Powered Subwoofer and try it out. Nevertheless, please take the time to read this page NOW, and the rest can wait until you’re good and ready. The HRS120 has its own built-in power amplifier. You should turn the INPUT SENSITIVITY control on the back of the cabinet down (fully counterclockwise) before turning on the HRS120 for the first time. Also be sure to set on the rear panel off the power switch (down).
INPUT/OUTPUT POWER SUB BYPASSED FLAT 15Hz SUBSONIC FILTER FILTER BYPASS FILTER IN FULL RANGE FILTER SELECT VARIABLE 110Hz ELLIPTICAL THX PM3 SETTINGS SUBSONIC FILTER 0dB LFE GAIN +10dB FILTER BYPASS FILTER SELECT INPUT SENSITIVITY 0° 180° (N/A) LFE GAIN POLARITY INPUT SENSITIVITY OFF NORMAL POLARITY LEFT SUB IN SAT NORMAL (MONO) OUT SUB 80Hz SAT 80Hz CROSSOVER CONTROLS 55Hz 110Hz CROSSOVER SUB L L IN OUT R R ON SAT 80Hz 55Hz POWER 110Hz CROSSOVER OUT IN RIGHT S
PLACEMENT AN IMPORTANT NOTE ON HRS120 BASS RESPONSE AND YOUR CONTROL ROOM OR LISTENING ROOM You’ve heard it before. “Low-frequencies are non-directional, so it doesn’t matter where you place the subwoofer.” Although it is true that frequencies below about 100Hz are non-directional, it is also true that a lot of factors can conspire to thwart the HRS120’s extended low frequency — including room shape, room volume, and acoustical treatment. This is not a cop-out or an apology.
Play music with a good strong bass line and crawl on the floor on your hands and knees until you find a spot where the bass sounds the best, with a smooth, tight response. Your ears need to be at the same height that the subwoofer’s driver will be when it is sitting on the floor. If you have access to a real-time analyzer (RTA), play pink noise over the system and use the RTA to find a location that exhibits the flatest bass response.
REAR PANEL DESCRIPTION This is where you connect your signal inputs and outputs to the subwoofer, and make adjustments to the crossover, filters, and input sensitivity. For THX applications, the rear panel switches and controls should be set to the THX positions as indicated on the rear panel. POWER LED The POWER LED lights when the power switch is turned on and the subwoofer is operating normally.
POLARITY 0° 180° POLARITY THX = 0˚ This switch reverses the polarity of the signal going to the subwoofer amplifier by 180º. It has no effect on the signal at the LEFT and RIGHT OUT or the MASTER OUT. There is no right or wrong setting for this switch. Listen to the overall blend of the subwoofer with the rest of the system, and select the switch position that gives you the best sound.
Frequencies below the crossover frequency are sent to the subwoofer, and frequencies above the crossover frequency are sent to the LEFT and RIGHT OUTputs, which are connected to the main/satellite speakers. Set the crossover frequency to the lowest frequency response rating of the main/satellite speakers. across the tip/sleeve when the internal relay is open, and a maximum 1 amp of current when the relay is closed. CAUTION: There is an internal 1A fuse to protect the REMOTE INDICATOR circuit.
POWER Use this switch to turn the HRS120 on and off. The subwoofer is muted for about three seconds after the HRS120 is turned on while the power supply and internal circuitry stabilize. The auto on/off circuit is disabled when the POWER switch is off. MAINS INPUT Connect the power cord to this IEC socket, and plug the other end into your AC outlet. Make sure the outlet is properly configured for the voltage rating of your model.
PROTECTION CIRCUITS CONNECTIONS There are several protection mechanisms designed into the HRS120 to safeguard the loudspeaker and amplifier from inadvertent damage. Peak Limiter A peak limiter is located at the input to the power amplifier section. It monitors both the amplifier output signal and the power supply voltages to guard against clipping and overloading the amplifier. This allows for loud and punchy bass performance without distortion, ensuring long-term reliability.
SERVICE INFO Details concerning Warranty Service are spelled out on the Warranty Card included with your subwoofer (if it’s missing, let us know and we’ll rush one to you). If you think your subwoofer has a problem, please do everything you can to confirm it before calling for service, including reading through the following Troubleshooting section. Doing so might save you from deprivation of your monitor and the associated suffering.
Repair Service for the U.S. versions of the HRS120 is available only from our factory service center located in sunny Woodinville, Washington. Service outside the United States can be obtained through local dealers or distributors. If your HRS120 needs service, follow these instructions: 1. Review the preceding troubleshooting suggestions. Please. 2. Call Tech Support at 1-800-258-6883, 7 am to 5 pm PST, to explain the problem and request an RA (Return Authorization) number.
3 2 3 2 3 2 MACKIE DESIGNS HRS120 THX BLOCK DIAGRAM (#110501DF) OUT HPF FROM CROSSOVER AT LEFT AND RIGHT OUTPUTS SUBWOOFER ACTIVE REMOTE INDICATOR SWITCH OPEN FULL-RANGE SIGNAL FROM INPUTS AT LEFT AND RIGHT OUTPUTS SUBWOOFER MUTED REMOTE INDICATOR SWITCH CLOSED OUTPUT IS INACTIVE WHEN NO SIGNAL IS PRESENT AND BECOMES ACTIVE AFTER SIGNAL RETURNS. OUTPUT REMAINS ACTIVE FOR SEVERAL MINUTES AFTER SIGNAL IS REMOVED. WHEN SIGNAL IS PRESENT THE OUTPUT IS ACTIVE.
Specifications Enclosure Amplifier Section Materials: MDF construction with black oak veneer. Sides: 0.75 in/19 mm thick Top: 1.25 in/32 mm thick Bottom: 1.00 in/25 mm thick Rated power output (1% THD @ 100 Hz): 400 watts rms into rated 8Ω load Internal Volume: 2.15 cubic feet/60.88 liters Burst power output (100 Hz sine with 10% duty cycle): 500 watts Distortion: THD (20 Hz-300 Hz, from 1W to –1 dBr=325 W): < 0.02% (typically 0.
Graphs HRS120 Crossover Filter Response +10 +8 +6 +4 +2 -0 -2 -4 -6 -8 -10 -12 -14 dBr -16 -18 -20 -22 -24 -26 -28 -30 -32 55Hz 80Hz 110Hz -34 -36 -38 -40 10 20 50 100 200 500 1k 2k 5k 10k 20k Hz HRS120 Elliptical Filter Response +10 +8 +6 +4 +2 -0 -2 -4 -6 -8 -10 -12 -14 dBr -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 -38 -40 20 50 100 200 500 1k 2k 5k 10k 20k Hz HRS120 Free-Field Frequency Response (THX pm3 setting) +10 +8 +6 +4 +2 -0 -2 -4 -6 -8 -10 -12 -14 dBr -16 -18 -20 -2
COLOPHON The text is a compilation based on input from a number of sources including Cam Jones, Terry Wetherbee, Marcelo Vercelli, and Keith Olsen. Dave Franzwa produced this manual using the following tools: Initially written in Microsoft® Word 98 for the Macintosh, the text was imported into Adobe PageMaker® 6.5. Illustrations were produced in Adobe Illustrator® 9.0. Most of the work was done on a Power Macintosh® G4 with Mac OS 9.1 installed.
HRS120 LIMITED WARRANTY Please keep your sales receipt in a safe place. A. Mackie warrants all materials, workmanship and proper operation of this product for a period of three years from the original date of purchase. If any defects are found in the materials or workmanship or if the product fails to function properly during the applicable warranty period, Mackie, at its option, will repair or replace the product. This warranty applies only to equipment sold and delivered within the U.S.
Mackie Designs Inc. 16220 Wood-Red Road NE • Woodinville, WA 98071 • USA US 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.
