The Samson Tech S-MAX MD1 Single Channel Passive Direct Box features an all-metal, impact resistant construction to provide high-quality signal connection solutions for live and studio applications.

The box features the company's STL transformer, which allows you to send your instrument and amp signals to the main mixing board with confidence. The unit provides a parallel Thru and Balanced Output to simultaneously route your signal to an onstage amplifier and mixer. The STL transformer gives the unit a flat frequency response that will maintain the natural sound of your instrument and provide isolation from electrical and RF interference.

Samson STL Transformer    Ground Lift Switch    1/4" Input and Thru    Balanced XLR Output

Related Questions and Answers

Q: 1. What is the input impedance on this box? I need 1M Ohm or higher.

A: The input impedance is specified as 50k ohms on the PDI-40 Direct Box.

Q: 2. Can this box also be used as a re-amping device? Using the XLR output as an input?

A: This device can not be used as a re-amping device. The XLR connection is only meant for a mic level output send to a mixer or interface.

Q: 3. Can the RCA and 1/4 inputs be used at the same time? If so are the signals mixed together for xlr outputs?

A: Technically yes, you could use those two inputs at the same time. However, the audio coming out of the XLR's would be mixed together, and potential phase cancellation could occur from combing audio sources in such a manner.

Q: 4. ground lift switch positions which lifts ground?

A: Yes, the DIB-443 has a built-in ground lift. Best regards, Hosa Support.

Q: 5. If I have a "stereo" line level source will this give me 2 mono XLR outs, or do I have to use both L/R outs ?

A: If you have a stereo line level source with left and right outputs, you are sending two different mono signals to the inputs on the Mackie MDB-2P Stereo Passive Direct Box, so you will need to use both the left and right XLR outputs in order to maintain the stereo image.

Q: 6. Is this used for connecting consumer grade line level signal -10dBV gear to pro grade line level signal +4dBu gear?

A: Although the dbx DJdi 2-Channel Passive Direct Box's continuously variable input signal attenuator can accommodate a wide range of signal levels, it is not specifically designed for connecting consumer level products to professional gear. The main function of the DJdi is accepting unbalanced input signals and converting them to balanced output signals, and functions best in standard DI applications such as sending a guitar signal to a mixer.

Q: 7. Is this bi-directional? May I connect XLR end to a mic and 3.5mm to computer mic input?Thank you.

A: This is a one-way device only.

Q: 8. Would this be what I need to bridge the gap between a standalone DAC (with RCA outputs) and JBL 305 powered monitors?

A: You do not need a di box to connect the DAC to a monitor, you just get the cables (1 per monitor). Please see attached link https://bhpho.to/2SMHJK9

Q: 9. Does this sound better than Kopul PDI-40? Or are the electronics inside the same? This model has more inputs and outputs, but if I only need one, will get the same quality using the model# PDI-40?

A: The SDI-PPC and PDI-40 are designed for use with different equipment, so the best option depends on the device you are going to be using and the application it is being used for. The SDI-PPC is a stereo direct box with stereo input and output. It has a stereo 3.5mm input for smartphones, tablets, and compatible media players, a pair of RCA jacks for turntables, A/V connections, computer soundcards, and a pair of 1/4" TS inputs for connecting instruments like guitar, bass, and keyboards to a mixer. Two XLR outputs are provided for left and right stereo signal or for splitting an instrument's output to route it to two destinations, like an amplifier and a mixer. A -15 dB pad is included for attenuation and a ground lift switch helps to eliminate hum. The PDI-40 has a single XLR input and single XLR output for connecting a microphone or an instrument like guitar, bass or keyboards to a mixer. It has a switchable -20 or -40 dB pad and ground lift switch.

Q: 10. What happens if I connect to all three input possibilities at the same time; 1/4" TS, RCA, and 3.5mm TRS. Will it prioritize one over the others and output from only one source, or will it blend all three sources before outputting via the XLR outputs?

A: The direct box is intended to be used with one input source only. If three sources are connected to three different inputs they would be blended together into one signal which may have issues with phasing.