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FDB-101 Passive Direct Input Box

Passive direct box
Price: $27.50 + shipping
Shipping weight:  2 lbs.

Key Features:
  • 3 position attenuation switch
  • Ground lift switch
  • Good quality internal splitting transformer
  • Instrument signal splitting before the stage amps to send a signal to the mix console.
  • Attenuation selectable signal conversion between 1/4" TS unbalanced Hi Z signals and XLR balanced Low Z signals.


Technical Description

 The EWI FDB-101 is a single channel passive (non powered) D.I. box.  This is a good (for the money), basic passive DI box, suitable for electric guitars, electric pianos, and other electric instruments capable of delivering a reasonably hot signal to the DI. 

This DI is equipped with the usual 1/4" phone jacks for in and out, and the male XLR send.  Additional features include:  A 0dB, -20dB, -40dB pad, and a switchable ground lift. 

The box itself is made from heavy duty extruded aluminum.  The cord jacks are plastic.  The switches are light-duty slide switches.

The internal splitting transformer used in the FDB-101 is good quality and is a key feature of the FDB-101.  The quality of the internal splitting transformer is the key to a good performing D.I. Box.  The transformers used in the EWI FDB-101 are manufactured to strict EWI tolerances designed specifically for this application.











  • Manufacture:  EWI
  • Model:  FDB-101
  • Frequency Response:  30Hz-20kHz
  • Attenuator:  0, -20dB, -40dB
  • Max input voltage:  32 volts
  • Input:  50Kohms, unbalanced
  • Output:  600 ohms, balanced
  • Transmission Ratio:  10:1
  • Dimensions:  3 x 3 x 1
  • Weight:  0.65 lbs.
  • Shipping weight:  2 lbs
  • Warranty:  3 years covering mfg. defects.

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