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Radial JDI 1-channel passive DI box with Jensen transformer for live outboard audio signal isolation and conversion.
  • Radial JDI 1-channel passive DI box with Jensen transformer for live outboard audio signal isolation and conversion.
  • Radial Engineering JDI 1-channel passive DI box with Jensen transformer for live outboard audio equipment.
  • Radial JDI 1 Channel Passive DI Box with Jensen Transformer for live outboard audio, showing front panel and input connections.
  • Radial JDI 1 Channel Passive DI Box with Jensen Transformer for live outboard audio, compact and durable for professional sound.
  • Radial JDI 1-channel passive DI box with Jensen transformer for live outboard audio signal conversion and isolation.
  • Radial JDI 1-channel passive DI box with Jensen transformer, used in live outboard audio setups for clean signal transfer.
Radial JDI 1 Channel Passive DI Box with Jensen Transformer

Brand: Radial Engineering

Radial JDI 1 Channel Passive DI Box with Jensen Transformer

SKU: RA-JDI
$425.00 (15% off RRP)
RRP $499.00
In stock
Price Match

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  • $35.42/mth for 12 months interest free

    Fees apply

  • $106.25 Pay in 4 interest-free

    Late fees apply

  • $106.25 Pay in 4 interest-free

    No fees or interest
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Stock Availability

  • 2 Mega Music Myaree
  • 1 Mega Music Wangara
  • 0 Mega Music Warehouse
Want to click & collect, or try in-store?

Both our Myaree and Wangara stores are open 9–5:30pm Monday – Friday, with Myaree open 9–7pm Thursdays, both stores 9–5pm on Saturday and closed on Sundays.

Stock is live across all three locations and updates as stock is sold, however we still encourage you to call ahead to the store if stock indicated here is low at your preferred location.

Click and collect is a service offered at both store locations, which may require stock to be moved between stores or from the warehouse, as such we request that if you have ordered online, to please wait for a confirmation message before heading to the store.

If stock is only indicated at our warehouse location it can still be transferred to your desired store, even if you just want to try it, just get in touch with your desired store during store opening hours and make a request!

Please also be aware that unless you have paid a deposit to hold an item, it will remain free for sale on the web even if it has been set aside in-store. To avoid disappointment we always recommend a 10% deposit, this can be done in-store or online, just get in touch!
Description

The Radial JDI is a passive direct box designed to handle extreme signal levels without distortion of any kind. At the heart, the Radial JDI employs the world class Jensen JT-DB-EPC audio transformer delivering a smooth, warm sounding Bessel curve, reminiscent of the finest vintage gear.

Ruler flat from 10Hz to 40kHz and with virtually zero phase deviation, the JDI delivers the natural, pure sound of the instrument without artifact. By its no-power passive design, the Radial JDI performs both high-to-low impedance conversion and signal balancing over a magnetic bridge that passes signal while rejecting stray DC voltage. This makes the JDI particularly adept at eliminating hum and buzz caused by ground loops.

Features

  • 15dB PAD switch - a -15dB pad can be introduced to reduce the input voltage and ensure a clean, distortionfree signal.
  • MERGE switch - left-right mix function turns the input and thru-put connectors into a pair of left-right inputs with a mono output at the XLR.
  • INPUT - 1/4" jack, 130k Ohm instrument input.
  • THRU - 1/4" jack, thru-put to send instrument signal through to the instrument amplifier.
  • Protective bookend cover overhangs the chassis providing protection for switches and connectors.
  • Welded I-beam construction for maximum strength and durability and a baked enamel finish offer years of trouble free performance.
  • Full bottom no-slip pad - reduces slipping in use and provides mechanical and electrical isolation.
  • Double sided PC board - military grade circuit board features a full ground plane for maximum protection against stray magnetic fields and RF noise.
  • XLR output connector - wired to the AES standard with pin-1 ground and pin-2 hot, provides a balanced 150 Ohm mic level signal.
  • POLARITY switch - 180º polarity reverse toggles the XLR pin-2 and pin-3 to interface with older equipment. Also used when combining two sources such as a mic and a DI.
  • GROUND switch - lifts the XLR pin-1 ground at the output to eliminate hum and noise caused by ground loops.
  • SPEAKER switch - a pad circuit that allows you to tap the signal from a speaker cabinet. Features a band-pass filter to emulate a 12" driver. Note: Only use in parallel with a speaker cabinet or load box.

Specifications

  • Type: Passive Jensen Transformer equipped
  • Input impedance: Unbalanced 140k Ohms typical
  • Output impedance: Balanced 150 Ohms typical
  • Frequency response: 20Hz to 20kHz (+/- 0.2dB)
  • Linear performance: < -0.22 dBr deviation @20kHz
  • Total harmonic distortion: 0.05% @ 20Hz, 0.006% @ 1kHz
  • Phase distortion: 3º at 20Hz, 0.3º at 100Hz
  • Maximum input level: +21dBu @ 20Hz (1% THD)
  • Size: 3.5" wide, 2" high, 5.5" deep
  • Weight: 1kg / 2.2lbs
  • Construction: Welded 14-gauge steel
  • Finish: Baked enamel finish

WATCH: The Radial JDI explained

Pair With
Service & Repairs

Our Perth workshop offers expert servicing for guitars, drums, amps and more. From restringing to full rebuilds, most repairs are completed within a few days.
Shipping & Returns

We ship Australia-wide with reliable couriers, dispatching most orders within two business days. Unopened items can be returned within 7 days for a refund, while opened items may be eligible for store credit.
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