Mackie MR8MK2 User Manual

MR8mk2
High Resolution Powered Studio Monitor
OWNER’S MANUAL
2
MR8mk2
MR8mk2
Important Safety Instructions
PORTABLE CART
WARNING
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.
AVIS: POUR EVITER LES RISQUES D'INCENDIE OU D'ELECTROCUTION, N'EXPOSEZ PA S CET ARTICLE
A LA PLUIE OU A L'HUMIDITE
The lightning flash with arrowhead symbol 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.
Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de "voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque d'éléctrocution.
The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé pour alerter les utilisateurs de la présence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil.
1. Read these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a 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.
10.
Protect the power cord from being walked on or pinched particularly at
plugs, convenience receptacles, and the point where they exit from the apparatus.
11.
Only use attachments/accessories specified by the manufacturer.
12.
Use only with a cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13.
Unplug this apparatus during lightning storms or
when unused for long periods of time.
14.
Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power­supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15.
This apparatus shall not be exposed to dripping or splashing, and no
object filled with liquids, such as vases or beer glasses, shall be placed on the apparatus.
16.
Do not overload wall outlets and extension cords as this can result in a
risk of fire or electric shock.
17.
This apparatus has been designed with Class-I construction and must
be connected to a mains socket outlet with a protective earthing con­nection (the third grounding prong).
18.
This apparatus has been equipped with a rocker-style AC mains power
switch. This switch is located on the rear panel and should remain readily accessible to the user.
19.
The MAINS plug or an appliance coupler is used as the disconnect device, so the disconnect device shall remain readily operable.
20. NOTE: This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equip­ment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorientorrelocatethereceivingantenna.
• Increasetheseparationbetweentheequipmentandthereceiver.
• Connecttheequipmentintoanoutletonacircuitdifferentfrom
that to which the receiver is connected.
• Consultthedealeroranexperiencedradio/TVtechnicianforhelp.
CAUTION: Changes or modifications to this device not expressly
approved by LOUD Technologies Inc. could void the user's authority to operate the equipment under FCC rules.
21. This apparatus does not exceed the Class A/Class B (whichever is
applicable)
limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.
ATTENTION — Le présent appareil numérique n’émet pas de bruits
radioélectriques dépassant las limites applicables aux appareils numériques de class A/de class B (selon le cas) prescrites dans le réglement sur le brouillage radioélectrique édicté par les ministere des communications du Canada.
22.
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 the following chart.
According to OSHA, any exposure in excess of these permissible limits
could result in some hearing loss. To ensure against potentially danger­ous exposure to high sound pressure levels, it is recommended that all persons exposed to equipment capable of producing high sound pres­sure levels use hearing protectors while the equipment is in operation. Ear plugs or protectors in the ear canals or over the ears must be worn when operating the equipment in order to prevent permanent hearing loss if exposure is in excess of the limits set forth here:
Duration, per day in hours 8 90 Duo in small club 6 92 4 95 Subway Train 3 97 2 100 Veryloudclassicalmusic
1.5 102 1 105 The Ballard Mallard screaming at
0.5 110
0.25 or less 115 Loudest parts at a rock concert
Sound Level dBA, Slow Response
Typical Example
desTROYer about deadlines
WARNING — To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.
3
Owner’s Manual
Owner’s Manual
ContentsMR8mk2 Features
High-resolution, powered studio reference monitor
Ultra-low distortion 8" woofer
Long voice coil winding length allows high output
with controlled low frequency performance
Optimally sized inverted dust cap stiffens cone for
smooth response
Hyperbolic curved cone profile reduces severe
cone resonances
High-output 1" silk dome tweeter
Neodymium magnet minimizes distortion and
handles fast transients in dynamic source material
Ferro-fluid cooling protects against power
compression
Acoustic absorption backing material provides
smooth, reflection-free performance
Precision Class A/B amplification with Active
protection circuits: 100W for LF / 50W for HF
Optimally sized custom waveguide provides seamless
transition of HF and LF
Minimum-diffraction molded baffle imparts superior
stereo imaging and depth
Adjustable HF and LF acoustic controls offer sonic
tailoring to your mixing space
Flexible inputs include XLR, TRS and RCA
connections
Magnetic shielding allows safe placement near
computers and video monitors
IMPORTANT SAFETY INSTRUCTIONS ...............................................2
INTRODUCTION ...............................................................................4
QUICK START ...........................................................................5
REAR PANEL DESCRIPTION ..............................................................6
1. SIGNAL INPUTS ................................................................6
2. INPUT LEVEL ....................................................................6
3. HIGH FREQUENCY FILTER .................................................6
4. LOW FREQ FILTER ............................................................7
5. POWER SWITCH ..............................................................7
6. MAINS INPUT AND FUSE ..................................................7
7. BASS REFLEX PORT ..........................................................7
FRONT PANEL DESCRIPTION ............................................................7
8. POWER INDICATOR .........................................................7
PROTECTION CIRCUITS ....................................................................8
OVEREXCURSION PROTECTION ...........................................8
THERMAL PROTECTION ........................................................8
INTEGRATED MAGNETIC SHIELDING .....................................8
INPUT SIGNAL WIRING ........................................................8
CARE AND CLEANING ......................................................................8
APPENDIX A: SERVICE INFO ............................................................9
TROUBLESHOOTING .............................................................9
REPAIR ...............................................................................10
APPENDIX B: CONNECTORS ...........................................................11
APPENDIX C: TECHNICAL INFORMATION .......................................12
MR8MK2 SPECIFICATIONS ....................................................12
MR8MK2 BLOCK DIAGRAM ..................................................13
MR8MK2 LIMITED WARRANTY .....................................................15
Precisely tuned to work interchangeably with other
MRmk2 monitors
Don’t forget to visit our website at www.mackie.com
for more information about this and other Mackie products.
Correct disposal of this product. This symbol indicates that this product should not be disposed of with your household waste, according to the WEEE Directive (2002/96/EC) and your national law. This product should be handed over to an authorized collection site for recycling waste electrical and electronic equipment (EEE). Improper handling of this type of waste could have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the effective usage of natural resources. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, waste authority, or your household waste disposal service.
Part No. SW0894 Rev. B 05/11 ©2011 LOUD Technologies Inc. All Rights Reserved.
4
MR8mk2
MR8mk2
Introduction
The MR8mk2 Mackie Reference Monitor is the perfect solution for those ready to step up to a truly professional, high-output monitoring system re-voiced MR8mk2 features all-new high-end drivers, delivering unmatched low frequency extension and clear, articulate highs. The MR8mk2’s precision Class A/B amplification (100W LF / 50W HF) offers class-leading power, tons of connection options and simple acoustic controls for room correction. Featuring an optimally sized custom waveguide and minimum-diffraction molded baffle, the MR8mk2 delivers superior stereo imaging and depth. With unbelievable power, performance and clarity, the MR8mk2 stands alone in its class.
. The completely
Investments in Excellence...
The MR8mk2s were designed by our expert loudspeaker and transducer engineering teams at Mackie and EAW. These compact studio monitors can be used in a variety of applications, including small project studios, surround sound editing, home theater playback, and desktop audio workstations (DAWs).
High-frequency and low-frequency switches are provided on the rear panel to adjust the sound of the monitors to the characteristics of the room. Three types of input connectors are provided (XLR, 1/4-inch, and RCA), to interface with virtually any application you may have.
The result? The MR8mk2 Studio Monitors are extremely accurate and versatile, with unique controls that allow you to fine-tune the sound to match your individual environment precisely. You’re gonna love these!
What are they? The Advantages...
The MR8mk2 Studio Monitors are bi-amplified, active monitors employing a bass reflex (ported) design for an extended low-frequency response. There are many benefits to integrating an active crossover, power amplifiers, and drivers into a single cabinet, and we’ve taken full advantage of these benefits in the design of the MR8mk2.
The crossover point is designed so that the high- and
low-frequency drivers are fed only the frequencies they are best able to reproduce.
two-way,
• In addition, the ampliers’ gain and frequency
responses are individually hand-trimmed to compensate for typical manufacturing tolerances between the drivers and produce a smooth frequency response from 40 Hz to 20 kHz.
• The connecting wires between the amplier outputs
and the drivers are kept to an absolute minimum, so the damping factor of the amplifier isn’t compromised by the resistance of long speaker cables.
• The acoustic sum of the outputs from the two drivers are optimized electronically, as well as physically, so the amplitude response is unity and the phase difference is minimal.
In short, all the complex interconnected components in the system are designed to work in harmony with each other to produce the best possible sound.
All-New Transducers...
The MR8mk2s feature an 8-inch high-precision, low­distortion woofer and a 1-inch neodymium silk dome tweeter.
The high-frequency driver is mounted on a molded baffle/waveguide, which reduces diffraction and results in wide, controlled This widens the “sweet spot” and improves the time domain characteristics of the system.
dispersion of high-frequency sounds.
Precision Power Ampliers...
The low-frequency amplifier produces up to 55 watts continuous before clipping, while the high-frequency amplifier produces up to 30 watts continuous. Both amplifiers are Class A/B with power MOSFET outputs and active protection circuits.
Cabinet Design...
The cabinet is made of MDF with a textured matte­black finish. Internal bracing increases the strength and rigidity of the box. An open-cell adiabatic foam material fills the inside of the box to absorb internal reflections and dampen standing waves.
• The ampliers are designed to provide maximum
acoustic output from the speakers, yet minimize the danger of speaker damage due to overdriving.
5
Owner’s Manual
Owner’s Manual
Quick Start
An Extremely Important Note on
We realize that you can’t wait to hook up your new Mackie MR8mk2 Studio Monitors and try them out. Nevertheless, please take the time to read this page NOW, and the rest can wait until you’re good and ready.
1. Turn the INPUT LEVEL [2] control on the back of the
cabinet down (fully counterclockwise) before turning on the monitor for the first time.
2. Set the power switch [5] on the back panel off. This will
prevent you from accidentally connecting a hot signal source to the monitor and getting a rude surprise.
3. Leave the High Freq [3] and Low Freq [4] Filter
switches at their Normal positions.
4. Connect the line-level monitor signal from your mixer,
preamp, or other signal source to the INPUT [1] jack on the MR8mk2 Studio Monitor (1⁄4-inch PHONE, XLR, or RCA).
5. Connect the supplied AC power cord to the IEC socket
[6] on the back of the monitor. Plug the other end into an AC outlet properly configured with the voltage corresponding to the markings next to the IEC socket.
MR8mk2 Bass Response and Your Control Room.
Your new MR8mk2s achieve their best bass response in a room that’s optimized for bass
reproduction. A lot of factors can conspire to thwart the MR8mk2s’ extended low frequency – including room shape, room volume and acoustical treatment.
This is not a cop-out or an apology. It’s plain old physics in action. Luckily we’ve armed you with some compensating controls that you can use to optimize the frequency response of the speakers in your particular room. Consider the following:
Low-Frequency Response
When you put your MR8mk2s in a corner or up against walls, their bass characteristics change. The apparent loudness of the low frequencies increases when the monitors are placed close to a wall, and even more so when they are placed in a corner.
If you have placed the monitors away from the walls and corners and you would like to hear a little more bass, try setting the LOW FREQ FILTER [4] switch to the +2 dB position to provide a gentle boost to the low frequencies (below 100 Hz). If it’s still not enough bass, try the +4 dB position to provide a little more bass boost.
6. Start your signal source (tape deck, CD, DAW, or whatever), but leave the master volume control on your mixer or preamp down.
7. Turn on the power switch [5] on the MR8mk2. The power LED [8] on the front panel will illuminate.
8. Slowly turn up the INPUT LEVEL [2] control on the back of the monitor to its fully clockwise position (MAX).
9. Adjust the master volume on your mixer or preamp to a comfortably loud listening level. If the MR8mk2 gets loud really fast, turn down the INPUT LEVEL control to its center position (12 o’clock) to provide more volume control on your mixer or preamp.
Enjoy the silky smooth highs and authoritative, commanding lows of the MR8mk2. Then read the rest of this manual.
High-Frequency Response
The MR8mk2s are designed to provide a smooth frequency response throughout the mid and high range. Nevertheless, you may decide that you need a little more or a little less high frequencies in your monitors while
are mixing. The HIGH FREQ FILTER [3] switch
you provides a gentle boost or cut in the frequencies above
Remember that boosting the high frequencies in
5 kHz. the monitors can result in a duller mix, while reducing the high frequencies can result in a brighter overall mix.
Additional Tidbits of Wisdom
• Never listen to loud music for prolonged periods. Please
see the Safety Instructions on page 2 for information on hearing protection.
When you shut down your equipment, turn off the
MR8mk2 studio monitors first to prevent thumps and other noises coming out the monitors last.
• Save the shipping box! You may need it someday.
• Save your sales receipt in a safe place. It’s your
warranty!
generated by any upstream equipment from
speakers. When powering up, turn on the
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