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HR624 MK2

HR6

24 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 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 power-

supply 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, shall be placed on the apparatus.

16.

 Note that this apparatus is not completely disconnected from the AC 

mains service when the power switch is in the OFF position.

17.  

The MAINS plug or an appliance coupler is used as the disconnect 

device, so the disconnect device shall remain readily operable.

18.

 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 danger-

ous exposure to high sound pressure levels, it is recommended that all 

persons exposed to equipment capable of producing high sound pres-

sure 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. 

IMPORTANT SAFETY INSTRUCTIONS

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.

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 PAS 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.

Duration, 

per day in 

hours

Sound Level 

dBA, Slow 

Response

Typical Example 

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

Matt screaming at Troy about 

deadlines

0.5 

110

0.25 or less 115

Loudest parts at a rock concert

WARNING — To reduce the risk of fire or electric shock, do not 

expose this apparatus to rain or moisture.

Summary of Contents for HR624 MK2

Page 1: ...OWNER S MANUAL HR624 MK2 High Resolution Active Studio Monitor...

Page 2: ...s sure 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 perman...

Page 3: ...s The HR624 MK2s have been redesigned with modern components for improved accuracy and an extended low frequency response InvestmentsinExcellence When we decided it was time to update the HR624s we tu...

Page 4: ...ttings ACOUSTIC SPACE WHOLE LOW FREQ 49Hz HIGH FREQ 0 except for the POWER MODE 6 switch Be sure it is set to the STANDBY position 1 Connect the line level monitor signal from your mixer preamp or oth...

Page 5: ...MODE 0 NORMAL AUTO ON 2dB 2dB STANDBY ON HIGH FREQ FILTER HALF WHOLE NORMAL QUARTER 80Hz LOW CUT 49Hz NORMAL B A C MAINS INPUT SIGNAL INPUTS BAL UNBAL XLR PHONE RCA C B A RISK OF ELECTRIC SHOCK DO NO...

Page 6: ...for another one Save your sales receipt in a safe place Also record all HR624 MK2 serial numbers in the space provided on the next page alongwithwhereandwhen youboughtthem Placement The HR624 MK2s we...

Page 7: ...es whose need for differentiation expert technical and marketing support and a true multi channel standard is becoming a competitive fact of life Again THX has a singular solution and this time it s c...

Page 8: ...the A position to reduce the low frequency output by 4 dB to compensate for the quarter space placement If you use the HR624 MK2s free standing away from walls and corners whole space 3C set the ACOU...

Page 9: ...W CUT 49Hz NORMAL B A C THX 80Hz The LOW FREQ FILTER switch inserts a low frequency rolloff into the response curve For some applications the low frequency output of the HR624 MK2 may impair your abil...

Page 10: ...ets them to automatic mode Use this switch to set the HR624 MK2s to your preferred mode of operation and use the front panel power 9 switch for convenience In the STANDBY position the power amplifiers...

Page 11: ...ncy the frequency response falls at 24 dB octave or more The HR624 MK2 is a bass reflex 6th order system Rather than use ports the vent takes the form of a passive radiator a mass loaded flat piston c...

Page 12: ...wer switch turns the HR624 MK2 on even when there is no signal present If there is no signal after about two minutes the auto off function is activated and the amplifiers go into Standby mode indicate...

Page 13: ...y induced noise like EMI and RFI Route the cable away from AC power cords and outlets These are common sources for hum in an audio signal Wall warts and line lumps are especially insidious hum inducer...

Page 14: ...onnector plugged completely into the jack If using a 1 4 TS or TRS plug make sure it is plugged all the way in Is it loud and distorted Reduce the signal level at the mixer If possible listen to the s...

Page 15: ...Tech Support department at 1 800 898 3211 normal business hours Pacific Time to explain the problem They will tell you where the nearest factory authorized service center is located in your area Serv...

Page 16: ...Auto Reset Muting 5 seconds at turn on Signal Sense Threshold 74 dBu 0 155 mV Driver Protection Independent LF and HF Detection Overall Compression HR624 MK2 Specifications Enclosure Materials and Con...

Page 17: ...V 50 60 Hz Rated Power For UL 6500 CSA E65 94 EN 60065 130 watts Physical Properties Height 13 1 in 33 3 cm Width 8 6 in 21 9 cm Depth Enclosure 10 3 in 26 2 cm Depth Overall 12 6 in 31 9 cm Internal...

Page 18: ...FF CONTROL MUTE THERMAL SWITCH LOW AC VOLTS SENSE POWER SWITCH FRONT PANEL POWER MODE SWITCH HIGH MUTE OFF LOW MUTE ON MACKIE HR624 MK2 BLOCK DIAGRAM 030507 OUTER SPACE 120V 240V FUSE POWER RING POWER...

Page 19: ...ice representative will at its option either repair or replace any such nonconforming product provided that Customer gives notice of the noncompliance within the Warranty Period to the Company at www...

Page 20: ...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 s...

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