Mackie MDB-1P Passive Direct Box

BH #MAMDB1P • MFR #MDB-1P
Mackie MDB-1P Passive Direct Box
Key Features
  • Connect an Instrument to a Mic Input
  • Converts Unbalanced to Balanced
  • Converts High Impedance to Low Impedance
  • 1/4" Unbalanced Input
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The Mackie MDB-1P is a passive 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 -15 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. Due to its passive design, the MDB-1P requires no batteries or power supply. A sturdy steel chassis enables confident use in the studio or on the road.

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$59.99
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Mackie MDB-1P Overview

The Mackie MDB-1P is a passive 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 -15 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. Due to its passive design, the MDB-1P requires no batteries or power supply. 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
-15 dB pad prevents overloading when accepting signal from a loud source
Ground-lift switch minimizes hum
Passive design requires no batteries or power supply
UPC: 663961053982

Mackie MDB-1P Specs

TypePassive
Input Connections1 x 1/4" TS unbalanced
Output Connectors1 x 1/4" TS unbalanced
1 x XLR 3-pin balanced
Input Impedance140 kOhms unbalanced
Output Impedance400 Ohms unbalanced
Impedance Ratio350:1
Pad-15 dB
High-Pass FilterNone
ControlsPad
Ground-lift switch
Frequency Response20 Hz to 20 kHz (±0.2 dB)
Signal to Noise RatioNot specified by manufacturer
Dynamic Range128 dB
Total Harmonic Distortion0.002% from 1 kHz
Power RequirementNone
CurrentN/A
Construction MaterialHeavy-gauge steel chassis
Dimensions (H x W x D)1.5 x 3.4 x 5.8" / 38 x 86 x 147 mm
Weight0.8 lb / 0.4 kg
Packaging Info
Package Weight1.01 lb
Box Dimensions (LxWxH)6.95 x 5.7 x 2.85"
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