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MDB S

eries Dir

ect Bo

xes

2

MDB Series Direct Boxes

Important Safety Instructions

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 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.

  Only use attachments/accessories specified by the 

manufacturer.

10.

  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.

11.

  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.

12.

 This device complies with Part 15 of the FCC Rules. Operation is 

subject to the following two conditions: (1) this device may not 

cause harmful interference, and (2) this device must accept any 

interference received, including interference that may cause 

undesired operation. 

 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 Audio LLC could void the user's authority to 

operate the equipment under FCC rules.

WARNING

 — To reduce the risk of fire or electric shock,  

do not expose this apparatus to rain or moisture.

13.

  This device complies with FCC radiation exposure limits set 

forth for an uncontrolled environment. This device should be 

installed and operated with minimum distance 20cm between 

the radiator & your body.

14.

  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.

15.

  This device complies with Industry Canada licence-exempt RSS 

standard(s).  

Operation is subject to the following two conditions:

(1)  this device may not cause interference, and

(2) this device must accept any interference, including 

interference that may cause undesired operation of the device.

  Le présent appareil est conforme aux CNR d’Industrie 

Canada applicables aux appareils radio exempts de licence. 

L’exploitation est autorisée aux deux conditions suivantes:

(1)  l’appareil ne doit pas produire de brouillage, et

(2)  l’utilisateur de l’appareil doit accepter tout brouillage 

radioélectrique subi, même si le brouillage est susceptible d’en 

compromettre le fonctionnement.

16.

  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

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

Ryan screaming at Troy about deadlines

0.5 

110

0.25 or less

115

Loudest parts at a rock concert

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 (2012/19/EU) 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.

Summary of Contents for MDB-1P

Page 1: ...OWNER S MANUAL INPUT PAD 0 dB 15 dB THRU PAD PAD THRU INPUT INPUT MERGE PAD THRU OFF ON POWER...

Page 2: ...o noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications ATTENTION Le pr sent appareil num rique n met pas de bruits radio...

Page 3: ...performance High impedance 1 4 input with Thru output Balanced XLR output with Ground Lift Low Cut and Polarity switches Merge switch allows connection of stereo sources which are then summed to mono...

Page 4: ...music for prolonged periods Please see the Safety Instructions on page 2 for information on hearing protection Save the shipping boxes and packing materials You may need them someday Besides your ham...

Page 5: ...nections made The rear panel connection is as straightforward as the front panel connections Here we connected an XLR cable from the MDB 1P output jack to a mixer s input jack That was our part The ne...

Page 6: ...MDB 2P has dual L R output jacks for connecting XLR cables between the MDB 2P and a mixer s input jacks Your fantastic fans await your memserizing music and tasteful tunes Time to stop reading Note W...

Page 7: ...from the MDB 1A output jack to a mixer s input jack Listen to the sound to determine if the polarity switch should be at 0 or 180 and if the low cut switch should be turned on or left off Note While...

Page 8: ...ut signal by 15 dB and compensate for higher output sources This attenuation is suited for use with instruments that have active electronics or high output pickups It is a 20 dB pad on the MDB 1A and...

Page 9: ...ar and filtering it out makes the low stuff you do want much more crisp and tasty Not only that but low cut can help reduce the possibility of feedback in live situations and it helps to conserve ampl...

Page 10: ...to the problem without having to part with your MDB Series Direct Box Troubleshooting Nosound Is the level knob for the input source turned all the way down Verify that all the volume controls in the...

Page 11: ...her should you If you stare at the Direct Box too long you might start seeing cute little creatures that you want to bring home with you We implore you to not place this by your bedside or you ll want...

Page 12: ...PassiveDirectBoxDimensions MDB 1AActiveDirectBoxDimensions MDB 2PStereoPassiveDirectBoxDimensions 5 8in 147mm 3 4in 86mm 1 5in 38mm WEIGHT 0 8lb 0 4kg 5 8in 147mm 3 4in 86mm 1 5in 38mm WEIGHT 0 8lb 0...

Page 13: ...am INPUT PHONE JACK 2 3 1 XLR OUT THRU PHONE JACK 15dB PAD 5 4 6 GND LIFT INPUT PHONE JACK 2 3 1 XLR OUT THRU PHONE JACK 15dB PAD 5 4 6 GND LIFT INPUT PHONE JACK 2 3 1 XLR OUT THRU PHONE JACK 15dB PAD...

Page 14: ...f the noncompliance within the Warranty Period to the Company at www mackie com or by calling LOUD technical support at 1 800 898 3211 toll free in the U S and Canada during normal business hours Paci...

Page 15: ...16220 Wood Red Road NE Woodinville WA 98072 USA Phone 425 487 4333 Toll free 800 898 3211 Fax 425 487 4337 www mackie com...

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