Get your keyboard or laptop into the PA in true stereo, clean and hum-free. The Mackie MDB-2P is a two-channel passive direct box. It turns the unbalanced left and right outputs of a keyboard, synth, laptop or media player into two balanced, low-impedance XLR signals for the mixer or snake.
Why customers choose it
Who it is for
Keyboard players and electronic musicians, DJs and playback rigs feeding a PA, churches and live venues, and recording studios that track stereo instruments direct.
Specifications
| Type | Passive stereo direct box, 2 channels |
|---|---|
| Inputs | 2 x 1/4-inch (6.35 mm) unbalanced, high impedance |
| Outputs | 2 x male XLR balanced (L/R), 2 x 1/4-inch Thru |
| Frequency response | 20 Hz – 20 kHz, ±0.2 dB |
| Dynamic range | 128 dB |
| THD | 0.002% from 1 kHz |
| Pad | -15 dB |
| Input impedance | 140 kΩ unbalanced |
| Impedance ratio | 350:1 |
| Ground lift | Yes |
| Power | None needed (passive) |
| Size | 147 x 86 x 38 mm |
| Weight | 0.4 kg (0.8 lb) |
Good to know
- For a single instrument such as a guitar or bass, the one-channel MDB-1P is enough.
- You need two XLR cables to the mixer for stereo, plus 1/4-inch cables from the source.
- If a laptop or phone has only a 3.5 mm output, use a 3.5 mm to dual 1/4-inch cable.
FAQ
Can I use it for two separate mono instruments?
Yes. Each channel has its own input, Thru and XLR output.
Does it need power?
No. The MDB-2P is passive and needs no battery or phantom power.
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