Radial Engineering JDI Premium Passive DI
Pure Sound of the Instrument
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.
- Jensen Transformer equipped passive DI
- Eliminates hum and buzz from ground loops
- Virtually zero phase & harmonic distortion
- Exceptional signal handling and noise rejection
DI with Electric Bass
The JDI is often selected for high output bass guitars. It is able to handle huge signal levels without distortion or artifact. On stage it sends the pure sound of the bass to the PA with minimal loading. In studio, it is perfect for recording direct.
JDI with Acoustic Guitar
Most acoustic guitars have built-in preamps that can be peaky. The JDI naturally smoothes out the transients for a warmer tone. And because the JDI is able to handle huge transients, it will not distort. This makes the JDI a great direct box for acoustic guitars.
JDI with Keyboards
Today's digital keyboards are not only very dynamic, some like digital pianos have a tremendously wide frequency response. The Radial JDI is able to withstand excessive signal levels at all frequencies without introducing distortion or phase shift.
- Audio circuit type: Passive, transformer based
- Transformer: JT-DB-EPC
- Number of channels: Single channel (mono)
- Frequency response: 20Hz ~ 20KHz (± 0.2dB)
- Dynamic range: 135dB
- Total harmonic distortion: 0.05% from 20Hz ~ 20kHz @-10dB
- Phase Deviation: 0.3° @ 100Hz; 3° @ 20Hz
- Input Impedance: 140k Ohms, unbalanced
- Output Impedance: 150 Ohms, balanced
- Maximum Input: +21dB @ 20Hz ~ 20kHz
Input pad, Mono Sum, 180° polarity reverse, Ground lift, Speaker filter
- Construction: 14 gauge steel chassis & outer shell
- Finish: Durable powder coat
- Size (L x W x D): 5" x 3.3" x 1.8" (127mm x 84.1mm x 45.5mm)
- Weight: 1.55 lbs (703 grams)
- Shipping size (L x W x D): 6.5" x 4" x 3" (165mm x 102mm x 76mm)
- Shipping weight: 1.92 lbs (870.9 grams)
- Power: Passive, no power required
- Conditions: For use in dry locations only between 5°C and 40°C
- Warranty: Radial 3-year, transferable
Flipside Music ships items within 2 days of purchase. UPS, FedEx or USPS will be used to ship your purchase, if you have a preference for another shipping provider, please contact Ike or Dylan and we will work with you and the company you choose.
International orders may be subject to destination countries' sales, VAT or import tax. Please contact your country's duty center, prior to purchase for more information regarding these fees. Flipside Music will not reduce listed price to avoid said duties.
We honor a 14 day return window on all new items.
If you feel the need to return an item, it must be in the sellable condition, no paint chips, scratches or broken parts. Sellable Condition means that the product(s) is in exactly the same condition as it was when you received it. The item must have all the original packaging, included accessories owner’s manuals and blank warranty card, no sign of wear or abuse.
Used and Vintage Gear
We honor a 3 day return window on all used and vintage items.
All our used gear is tested for functionality prior to being available for purchase and therefore only carries a 3 day approval period. If you would like to make a return just let us know within the 3 day window.
Damaged or Defective Items
We visually inspect all items before shipment. If you believe you have received a damaged or defective product, please contact us immediately so we can work through the issue. Guitars, basses, and other equipment returned to us with pick marks, "buckle-rash", or any other damage or evidence of use may be subject to a 20% restocking fee, repair charge or disqualification of return. All items must be returned to us in the same condition they were when shipped to qualify. We reserve the right to refuse any return if we determine the item has been misused, modified or damaged by the purchaser. If the item turns out not to be defective upon inspection, we will have to deduct the cost of shipping from your return credit.
You will be responsible for the shipping charge for the return of your item, and if your item qualifies for Free shipping on its way to you, this shipping charge will also be deducted from your refund. If your item is determined to be defective, we will pay the shipping charge, equivalent to ground service.