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Professional-grade passive DI boxes featuring HA-DI custom nickel-core transformers with MU Metal shielding, rugged 14-gauge steel housings, MIL-spec circuit boards, gold-plated connections, 15dB pads, ground lift switches, and a wide 20Hz–18kHz frequency response, delivering ultra-clean, transparent, and noise-free signal conversion for instruments in live and studio environments.
At a glance
- Single channel (P DI ONE) or dual channel (P DI 2) passive DI design
- HA-DI custom transformers with nickel core for transparent audio
- MU Metal shielding for maximum EMI protection
- Eliminates hum and buzz from ground loops
- Virtually zero phase shift or harmonic distortion
- Rugged 14-gauge steel chassis
- MIL-spec circuit board with full ground plane
- Gold-plated input, thru, and XLR connectors
- Durable switches rated for over 25,000 cycles
- 15dB pad for hot signals
- Ground lift switch for noise control
- Frequency response 20Hz–18kHz
The Heritage Audio P DI ONE is a single channel passive DI box built for pristine signal integrity, delivering ultra-low noise, virtually zero phase shift, and unmatched durability.
Precision Transformer Design
At the heart of the P DI ONE lies the HA-DI custom transformer. With a nickel core optimised for transparent signal transfer and MU Metal shielding for protection against electromagnetic interference, the transformer ensures outstanding clarity while eliminating hum and buzz from ground loops.
Rugged Construction
The 14-gauge steel chassis protects against mechanical stress and guarantees long-term reliability. A MIL-spec circuit board with a full ground plane provides ultra-quiet operation, while durable metal switches rated for over 25,000 cycles withstand heavy professional use.
Performance-driven Features
The unit balances and converts instrument-level signals to microphone level, making it ideal for keyboards, synths, drum machines, samplers, and certain guitars or basses. Gold-plated jacks and XLR connectors maximise conductivity, while a 15dB pad handles hotter signals. The ground lift switch prevents unwanted hum, ensuring clean and natural sound every time. With a frequency response of 20Hz to 18kHz, the P DI ONE preserves every nuance of the instrument’s tone.
Why Choose the P DI ONE?
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Custom HA-DI transformer for superior transparency
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MU Metal shielding for maximum EMI protection
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Full ground plane PCB for ultra-low noise
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Heavy-duty 14-gauge steel enclosure
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Gold-plated input, thru, and XLR connections
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Reliable switches tested to 25,000 cycles
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Wide 20Hz–18kHz frequency response
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15dB pad for handling high-output instruments
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Ground lift switch to eliminate hum and buzz