Heritage Audio PDI One Passive Direct Box

Heritage Audio

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Product Code: 7903
$109.00
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The Heritage Audio PDI One Passive Direct Box is a high-quality passive DI box that transparently converts your instrument or line source into a balanced signal for your console or interface. Built with a custom transformer and sturdy steel housing, it preserves your tone while eliminating hum and ground noise without coloring your sound.

The Heritage Audio PDI One is a premium single-channel passive DI box designed to transparently convert high-impedance instrument or line signals into balanced low-impedance outputs with minimal coloration. It relies on a custom HA-DI transformer (nickel core, MU metal shielding) to deliver clean signal transfer while rejecting hum, buzz, and interference. Because it is completely passive (no power required), the  PDI One is ideal for reliably sending keyboards, synths, drum machines, or other active instruments directly into a mixing console or front end, while preserving their natural tone and avoiding any added distortion or artifacts! The PDI One is the single channel version of the Heritage Audio PDI 2.

Heritage Audio PDI One Passive Direct Box Features

  • Single-channel passive DI (no external power required)
  • Custom HA-DI transformer (nickel core + MU metal shielding) for transparent signal transfer and noise immunity
  • Effectively eliminates hum and buzz from ground loops
  • Virtually zero phase shift or harmonic distortion
  • 15 dB pad for handling higher signal levels
  • Ground lift switch to disconnect ground path when needed

Heritage Audio PDI One Passive Direct Box Specifications

  • Transformer: HA-DI custom made (nickel core, MU metal shielding)
  • Frequency response: 20 Hz to 18 kHz
  • Input/Thru: gold-plated 1/4" jacks
  • Output: gold-plated XLR (balanced)
  • Circuit board: MIL-spec with full ground plane
  • Switch durability: metal switches rated > 25,000 cycles

Heritage Audio PDI One Passive Direct Box Includes

  • Heritage Audio PDI One Passive Direct Box
  • Manufacturer Warranty

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