14,000+ reviews

Radial JDI Passive Direct Box (J-DI)

RA-JDI - RRP $459.00
In store: None
Online: Yes
Online
$379.00
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free

shipping!*
3

year warranty

Frequently Asked Questions

What are the shipping rates?

We offer free shipping on most items to metro areas in ACT, NSW, VIC, and QLD. If you are in a regional area we do offer great shipping rates, though it is often too expensive for us to offer free shipping. You can calculate shipping costs in the checkout and on item pages with your postcode.
Orders under $50 incur a minimum order fee to cover shipping.

Standard vs Express Shipping

Our shipping platform will automatically determine and display the Express or Standard shipping options that are available to you. If Express is not displaying, you're either located too far away from our store in Canberra, or the Standard shipping option will get it to you just as fast for the same price. Express shipping is 1-5 days, Standard 2-10 days depending on how far you are away from our store in Canberra.

What payment methods do you offer?

We offer secure checkout options like Visa, Mastercard, PayPal, Zip Pay and Bank Deposit.
American Express payments are also accepted, although most AmEx transactions will require manual authorization after payment (Someone from the team will contact you to confirm the transaction after checkout)

What payment methods do you offer?

We offer secure checkout options like Visa, Mastercard, PayPal, Zip Pay and Bank Deposit.
American Express payments are also accepted, although most AmEx transactions will require manual authorization after payment (Someone from the team will contact you to confirm the transaction after checkout)

Can I cancel my order?

If you need to cancel your order it is best to give our online team a call on (02) 6282 3199
On weekends our online team may not be operating. Either give us a call monday morning or reply to your order email and we will endeavour to stop goods leaving the store.

Need Assistance?

Feel free to contact us by phone, email or chat

  • (02) 6282 3199
  • Talk to our experts on live chat
  • 18 Salamander Court, Phillip 2606, ACT
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JDI™ Passive Direct Box

  • Jensen Transformer equipped passive DI
  • Eliminates hum and buzz from ground loops
  • Virtually zero phase & harmonic distortion
  • Exceptional signal handling and noise rejection

The Radial JDI is a passive direct box designed to handle extreme signal levels without distortion of any kind. Unlike an active DI that is limited by the buffering amplifier’s rail voltage, the JDI employs a Jensen audio transformer as the engine. Jensen transformers are legendary in their ability to gracefully handle transients while 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.

The 100% passive circuitry inside the JDI is incredibly efficient. The transformer performs both high-to-low impedance conversion and signal balancing at the same time with minimal loading and does so without any power whatsoever. The transformer also introduces 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 include input and throughput ¼” connectors, -15dB input pad, ground lift, and 180º degree polarity reverse to help phase align the instrument with the PA. A secondary circuit is added for direct interfacing with high output devices such as guitar or bass amp loudspeakers plus a unique merge function allows stereo sources such as keyboards to be summed mono, saving valuable input channels.

Built tough to handle the abuse of live touring, the JDI features a 14-gauge steel I-beam inner frame and a unique book-end outer shell. The innovative design eliminates stress on the PCB, reducing opportunity for solder joints to go ‘cold’ while the outer shell creates a protective zone around the switches and connectors. The steel casing resists noise-causing electromagnetic pollution and the transformer’s sensitive inner workings are further protected from magnetic fields with a MuMETAL® can. This ensures the signal transfer is quiet and free from hum.

These combined features have made the Radial JDI the most popular passive direct box in professional touring and an excellent choice for instrument interface in the studio!

The Radial JDI… the world's finest passive direct box.

More Information
Brand Radial Engineering
Got bluetooth? No
Built in effects? No
Paco

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