Owner
’s Manual
11
Owner’s Manual
MDB Series Direct Box Specifications
Appendix B: Technical Information
Power
Input Type
48 V Phantom [MDB-1A]
Current Draw
<4.0mA DC [MDB-1A]
Display LEDs
Front Merge on/off [MDB-1A]
Physical Properties
Height:
1.5 in / 38 mm
Width:
3.4 in / 86 mm
Depth:
5.8 in / 147 mm
Weight:
0.8 lb / 0.4 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.
Warning
We don’t take warnings lightly and neither 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
to cuddle. Definitely don’t water it like a Chia™ Pet, waiting for chia sprouts to
grow on its head. No sprouts will grow and you will have ruined a perfectly good
Direct Box... and broken the warranty. Don’t say we didn’t warn you!
Audio Performance
Frequency Response
20 Hz – 20 kHz , ±0.5 dB [MDB-1A]
20 Hz – 20 kHz , ±0.2 dB [MDB-1P • MDB-2P]
Signal-to-Noise Ratio
90 dB [MDB-1A]
Dynamic Range
130 dB [MDB-1A]
128 dB [MDB-1P • MDB-2P]
Total Harmonic Distortion
0.02% THDF @1 kHz [MDB-1A]
0.002% from 1000 Hz [MDB-1P • MDB-2P]
Pad
–20 dB [MDB-1A]
–15 dB [MDB-1P • MDB-2P]
Input / Output
Input Type
Female 1/4" Unbalanced
Input Impedance
330 k unbalanced [MDB-1A]
140 k unbalanced [MDB-1P • MDB-2P]
Impedance Ratio (Input to Output)
350:1 [MDB-1P • MDB-2P]
Output Type
Male XLR Balanced
1/4" Unbalanced (Thru)
Output Impedance
150 balanced [MDB-1A]
400 unbalanced [MDB-1P • MDB-2P]
