Samson MD1 PRO Mono Passive Direct Box

The Samson MD1 Pro Mono Passive Direct Box is designed to do one job well: convert unbalanced high-impedance signals into balanced low-impedance signals for clean, noise-free runs to a mixing console or recording interface. At its core is the Samson STLX Mu-Metal shielded transformer, which provides electrical isolation between the source and the output while rejecting electromagnetic interference that can introduce hum and buzz into the signal chain. The 3-position attenuation switch (0dB, -15dB, -30dB) gives the MD1 Pro the flexibility to handle everything from a passive bass guitar to a powered speaker output without overloading the connected input.

Built into an all-metal, impact-resistant enclosure, the MD1 Pro is designed to survive life on stage, in road cases, and on studio floors. The 1/4-inch input accepts the signal and passes it through to a parallel 1/4-inch thru jack for sending the original signal onward to an amplifier, while the XLR output delivers the balanced signal to front-of-house or a recording interface. A ground lift switch is included to quickly address ground loop issues that commonly arise in live sound environments. For musicians and engineers who need a dependable, no-nonsense DI box without the cost or complexity of active electronics, the MD1 Pro covers the fundamentals reliably.