Passive Instrument DI Box with XLR Output

Connect a compatible instrument signal to a balanced mixer input. This passive DI box is for musicians checking source level and the mixing system's connections.

• ✅ Feed a balanced input — An XLR connection is described.
• ✅ Keep a local signal path — A parallel quarter-inch thru output is stated.
• ✅ Adjust the input level — Selectable attenuation is described.
• ✅ Operate without charging — The passive circuit needs no battery.

Route the Instrument to Two Suitable Destinations

Match the instrument output and mixer input before connection. A DI provides signal interfacing rather than amplification or a guaranteed improvement in sound.

A ground-lift switch can change the signal-ground arrangement, but it does not replace protective mains earth. No universal elimination of hum or noise is guaranteed.

Technical details

• Type: passive DI
• Input/thru: 6.35 mm stated
• Balanced connection: XLR stated
• Attenuation: 0/−20/−40 dB stated
• External power: none
• Contents: 1 DI box

Check signal levels and route the instrument through a matched DI.

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