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MD1 Pro

Mono Passive Direct Box

The MD1 Pro Mono Passive Direct Box combines premium sound circuitry with durable, road-ready construction to provide a high-quality solution for line, instrument, and speaker-level signals. The MD1 Pro allows you to send balanced line signals from your instrument over long distances without introducing noise.

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  • To The Max

    The MD1 Pro's Thru jack allows you to take the signal from the input and send it to an amplifier or monitor without affecting the original audio. This can eliminate the need for miking guitar amps, which may be preferable in some applications, especially as more musicians use in-ear monitors.

    MD1 Pro end panels showing inputs and outputs
  • S-Max Transformer Top

    Clean, Clear Signal

    The MD1 Pro features Samson's STLX Mu-Metal shielded transformer, which provides an extended, flat frequency response with ultra-low distortion and superior protection against hum and RF interference. The MD1 Pro's balanced output provides a clean signal that is less susceptible to noise than an unbalanced line, allowing for longer cable runs. The MD1 Pro also includes a 3-position 0dB/-15dB/-30dB attenuation switch for switching between line and speaker level signals.

  • Roadworthy Construction

    Housed in a 14-gauge steel chassis, the MD1 Pro is built to withstand the abuse of the most demanding live tours. Its rigid outer shell protects all the MD1 Pro's internal connections, switches, and solder joints from failure, ensuring quiet, reliable performance.


Features / Specs


  • All-metal, impact resistant design
  • Samson STLX Mu-Metal shielded transformer
  • 3-position 0dB/-15dB/-30dB attenuation switch
  • Ground Lift switch
  • 1/4" Input and Thru
  • Balanced XLR output
  • No Phantom or Battery power required
  • Frequency response of 18Hz–40kHz

Warning CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm -

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