Samson SAMS-SMAX MDA1 Mono Active Direct Box

The Samson MDA1 is a rugged, high-quality active direct injection (DI) box that converts unbalanced, high-impedance instrument or line-level signals into balanced, low-impedance signals suitable for mixing consoles and audio interfaces. It’s perfect for connecting guitars, keyboards, drum machines, and other electronic instruments to professional PA systems or recording setups.

Key Features:

• Converts unbalanced instrument or line signals to balanced mic-level output
• Active circuit design ensures superior signal integrity and low noise
• Switchable –20 dB pad for handling high-output sources
• Ground lift switch eliminates unwanted hum and buzz
• ¼″ input and thru jacks for easy signal pass-through
• Balanced XLR output for direct connection to mixers or stage boxes
• Powered via 48V phantom power or 9V battery
• Heavy-duty, all-metal chassis built for stage and studio use

Specifications:

• Input: ¼″ TS (unbalanced)
• Thru: ¼″ TS
• Output: Balanced XLR male
• Input Impedance: 1 MΩ
• Output Impedance: 600 Ω
• Pad: –20 dB
• Power: 48V phantom or 9V battery
• Frequency Response: 20Hz–20kHz ±0.2 dB