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Passive Direct Inject Box

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ART ZDirect DI Box
  • Connect Your Instrument, Line, or Speaker Level Signals to Your Mixer
  • Buffer and Convert Your High Impedance 1/4” and XLR Inputs into an Isolated Balanced Low Impedance Signal Source
  • Switchable Input Attenuation and Filters Allow for Versatility on Stage and in the Studio
  • Isolates Ground Loops and Hum
Unit Specifications
  • Frequency Response: 10Hz –50kHz, +/-.5dB @ +4dBu
  • THD: .01% Typical @ 1kHz, +18dBu, <.05% @ 100Hz, +18dBu
  • Input Connections: 1/4” TRS unbalanced, 50k Ohm
  • Output Connection: XLR male, 600 Ohm
  • Filter Type/Response: Switchable, Low Pass, -3dB @ 30kHz
  • Input Attenuation: Switchable, (0dB, -20dB, -40dB)
  • Output Phase: Switchable, Normal/Invert
  • Ground Lift: Switchable, fully isolates inputs from chassis and output.
  • Dimensions: 3 1/2"L x 4 3/16"W x 1 3/4"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Preamplifier Specifications

Number of Channels
This is the number of channels the preamp is designed for.
Preamp Type
This defines the type of preamp.
Phantom Power
This specifies whether or not the mic preamp has a phantom power supply.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
Gain Range
This is the range of gain for the preamplifier.
THD (Total Harmonic Distortion)
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
Built-in Equalizer
Some preamps have a built-in equalizer to help process the audio. If the preamp has a equalizer, the type of EQ will be listed here.
Phase Invert
If the preamp has a phase invert, it will be listed here.


These are the input connections that go into the preamp.
These are the output connections that go out from the preamp.
Headphone Out
This is the type of connection that the preamplifier uses for a headphone output.
Dedicated Mic Input
This is the type of connection that is used as a dedicated microphone input for the preamplifier.

General Specifications

Rackmount Spaces
This is the total number of spaces that the preamplifier will occupy when mounted on a rack.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
Weight (Pounds)
This is the weight of the item in pounds (lbs).

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: ART ZDIRECT