Mackie MDB-2P passiv direct box sort

The Mackie MDB-2P is a high-quality passive direct box designed for professional audio applications. Featuring a rugged steel chassis and custom high-headroom transformers, it delivers pristine signal conversion from unbalanced to balanced audio. Ideal for guitars, basses, keyboards, acoustic instruments, DJ mixers, and laptops, the MDB-2P ensures reliable performance in any setting.

Advantages

Passive operation requires no power, making it instantly ready for any stage or studio. The built-like-a-tank steel chassis withstands the rigors of touring and live sound. With two independent channels, ground lift switches, and -15 dB pads per channel, it offers flexibility for a wide range of input sources.

Suitable for

• Connecting unbalanced instruments to balanced mixer inputs
• Eliminating ground loop hum with ground lift switches
• Reducing hot input signals with -15 dB pads
• Stereo or dual mono direct injection applications

Key specifications

• Type: Passive
• Channels: 2 (Stereo)
• Input Connectors: 2 x 1/4" TS Unbalanced
• Output Connectors: 2 x XLR Balanced
• Thru Connectors: 2 x 1/4" TS Unbalanced
• Input Impedance: 130 kΩ
• Output Impedance: 600 Ω
• Frequency Response: 20 Hz - 20 kHz (±0.5 dB)
• Pad/Attenuation: -15 dB (per channel)
• Ground Lift: Yes (per channel)
• Transformer: High-headroom custom transformer
• Construction: Built-Like-A-Tank™ steel chassis
• Power Requirement: Passive (No power required)
• Color: Black

Recommendations

For optimal signal integrity, use high-quality balanced XLR cables to connect the MDB-2P to your mixer or audio interface. The ground lift switch can help resolve hum issues in challenging electrical environments.