BHD
JOD
KWD
LBP
OMR
QAR
SAR
USD
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.
- Connect an Instrument to a Mic Input
- Converts Unbalanced to Balanced
- Converts High Impedance to Low Impedance
- 1/4" Unbalanced Input
- 1/4" Thru Jack
- XLR Balanced Output
- Switchable Pad Prevents Overloading
- Ground-Lift Switch Minimizes Hum
- Merge, Low-Cut, and Polarity Switches
- Operates on Phantom Power
Recommended Products
Prepaid Product
Customer Also Viewed
Samma3a Review
Technical Specification
- Type: Active Direct Box
- 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
- Warranty: 1 year
What Is In The Box
- Mackie MDB-1A Active Direct Box
Videos
Manufacture Description
MDB SERIES
Great for active instruments like guitars and basses with active pickups and preamps, the MDB-1A Active DI features increased headroom and distortion-free operation. Featuring a 1/4-inch high-impedance input and thru with -20db pad plus a Merge switch that turns the Thru jack into a second input, perfect for summing a stereo source to a mono output. The balanced XLR output features switches for Polarity, Low Cut, and Ground Lift. For maximum convenience, the MDB-1A is powered by 48v phantom power.
Features
- Active circuitry offers higher headroom for increased noise and distortion performance
- High-impedance 1/4-inch 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 at the output, perfect for stereo sources like keyboards media players
- -20dB pad ensures distortion-free performance when connecting to high-level sources
- Powered via 48v Phantom Power
- Built-Like-A-Tank™ construction
READY FOR ANYTHING
From acoustic guitars to laptops, always sound your best with MDB Series Direct Boxes in the studio or on the stage.
