Mackie MDB-1A - Active Direct Box

1001632

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Mackie MDB-1A is an active direct box designed to connect a single instrument such as a...
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79,00 CHF


85,40 CHF TTC  

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Service interne : révision, réparation & backup.

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Délai habituel entre 2 et 3 semaines


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Mackie MDB-1A Active Direct Box


 


The Mackie MDB-1A is an active direct box designed to connect a single instrument such as a guitar, bass, or keyboard to a microphone preamp for musicians and audio engineers in recording sessions, houses of worship, and live stage applications. It converts a high-impedance, instrument-level signal via its 1/4" TS unbalanced input to a low-impedance, mic-level output via its balanced XLR 3-pin jack. A 1/4" thru jack allows simultaneous connection to an amplifier or pedalboard.


A -20 dB pad reduces the input level to prevent distortion when using a high-gain source, and the ground-lift switch inhibits hum caused by ground loops. Additionally, there are switches for polarity and a 120 Hz high-pass filter. The Merge function allows the Thru jack to be used as a second, simultaneous input. Due to its active design, the MDB-1A operates on phantom power. A sturdy steel chassis enables confident use in the studio or on the road.


- Connect an instrument such as a guitar, bass, or keyboard to a microphone preamp


- Converts a high-impedance, unbalanced 1/4" input to a low-impedance, balanced XLR mic-level output


- 1/4" thru jack for routing to an amplifier


- -20 dB pad prevents overloading when accepting signal from a loud source


- Ground-lift switch minimizes hum


- Active design operates on phantom power


 



Specifications



 



Type



Active



Input Connections



1 x 1/4" TS unbalanced



Output Connectors



1 x 1/4" TS unbalanced

1 x XLR 3-pin balanced



Input Impedance



330 kOhms unbalanced



Output Impedance



150 Ohms balanced



Impedance Ratio



2200:1



Pad



-20 dB



High-Pass Filter



120 Hz



Controls



Pad

Ground-lift switch

Merge

Low-cut switch

Polarity



Frequency Response



20 Hz to 20 kHz (±0.5 dB)



Signal to Noise Ratio



90 dB



Dynamic Range



130 dB



Total Harmonic Distortion



0.02% at 1 kHz



Power Requirement



48 VDC phantom power



Current



<4 mA DC



Construction Material



Heavy-gauge steel chassis



Dimensions (H x W x D)



1.5 x 3.4 x 5.8" / 38 x 86 x 147 mm



Weight



0.8 lb / 0.4 kg





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  • GE : + 41 22 561 07 07
  • ZH : + 41 43 255 59 00
  • TI   : + 41 91 985 25 11

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