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MDB-USB Ster

eo Dir

ect Bo

x

8

MDB-USB Stereo Direct Box

MDB-USB Stereo Direct Box Specifications

Appendix B: Technical Information

Display LEDs

 

 

Front power on/off, 

Front Mono on/off

 

Physical Properties

Height:    

 

 

1.5 in / 38 mm 

Width:  

 

 

 

3.4 in / 86 mm 

Depth:  

 

 

 

5.8 in / 147 mm 

Weight:    

 

 

1.0 lb / 0.5 kg

 

 

Disclaimer

Since we are always striving to make our  products better by incorporating new 

and improved materials, components, and manufacturing methods, we reserve 

the right to change these specifications at any time without notice.
The “Running Man” figure is a registered trademark of LOUD Audio, LLC.
All other brand names mentioned are trademarks or  registered trademarks  

of their respective holders, and are hereby acknowledged.
©2018 LOUD Audio, LLC 

All Rights Reserved.

Audio Performance

Frequency Response  

20 Hz – 20 kHz , ±0.5 dB

Total Harmonic Distortion 

 

 

<0.01%

Dynamic Range 

 

 

 

88 dB

Stereo Channel Separation 

 

 

<–78 dB

 

 

Input / Output

Input Type   

Female Type-B USB 

Input Impedance 

330 k  balanced 

Output Type 

 

 

2x Male XLR Balanced 

1/8" Stereo Unbalanced (Phones)

Output Impedance 

600   balanced (XLR)  

150   balanced (1/8")

Level Control 

 

 

Rotating knob

 

 

Requirements

USB Bus powered 

 

90mA

Format  

USB 2.0

Compatibility 

 

Windows 7, 8, 10 

Mac OS

Supports   

WDM, MME, CoreAudio, 

DirectSound, .WAV

Sample Rates (set by computer)   

44.1 / 48 / 88.2 / 96 kHz 

16 / 24-bits 

MDB-USB Stereo Direct Box Dimensions

5.8 in / 147 mm

3.4 in

86 mm

1.5 in

38 mm

WEIGHT

1.0 lb

0.5 kg

Summary of Contents for MDB-USB

Page 1: ...OWNER S MANUAL POWER USB INPUT PHONES MONO ON OFF LEVEL LEFT OUTPUT RIGHT OUTPUT GROUND LIFT...

Page 2: ...dio 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 rad...

Page 3: ...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 hamster w...

Page 4: ...headphones to the phones 1 8 output jack Front panel connections made The rear panel connections are as straightforward as the front panel connections Here we connected the XLR L R line output jacks...

Page 5: ...34 29 37 10 POWER USB INPUT PHONES MONO ON OFF LEVEL STEREO DIRECT BOX 2 1 4 5 6 3 4 Headphone Output This 1 8 TRS connector supplies the output to stereo headphones It is the same signal that is rou...

Page 6: ...eld ground Pin 2 Positive or hot Pin 3 Negative or cold Fortune A feeling is an idea with roots Lucky numbers 12 46 79 40 2 34 2 1 SHIELD COLD HOT 3 SHIELD COLD HOT 3 2 1 8 Ground Lift Switch The grou...

Page 7: ...of useful information such as FAQs and other documentation You may find the answer to the problem without having to part with your MDB USB Stereo Direct Box Troubleshooting Nopower Our favorite quest...

Page 8: ...names mentioned are trademarks or registered trademarks of their respective holders and are hereby acknowledged 2018 LOUD Audio LLC All Rights Reserved AudioPerformance Frequency Response 20 Hz 20 kH...

Page 9: ...BlockDiagram USB RECEIVER FIXED RESISTANCE FIXED RESISTANCE 5 4 6 MONO OUTPUT LEVEL LA LINE AMP LA LINE AMP 2 3 1 XLR OUT L PHONE JACK HEADPHONE 2 3 1 XLR OUT R FIXED RESISTANCE FIXED RESISTANCE LA LI...

Page 10: ...otice of 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 hou...

Page 11: ...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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