B&H Photo Video Pro Audio The Professional's Source 800.606.6969 / 212.444.6615
0 $0.00
Your cart is currently empty

You have 0 items in your cart

View Cart & Begin Checkout

Checkout will be available in 17:58 hours

Feel free to browse our site and add items to your cart or wishlist.
Notify when open

Important Notice!

Close
Please note: Online ordering is unavailable until Saturday 7:00 PM EST (in 17 hour(s) and 58 minutes). Feel free to browse our site and add items to your cart or wishlist. We apologize for the inconvenience and appreciate your patronage.

Radial Engineering JDI Mk3 - Professional Passive Direct Box with Jensen Transformer

B&H # RAJDI MFR # R800 1010
Radial Engineering JDI Mk3 Direct Box

Close

More Coming Soon
Ship Time: 3-7 business days 

You Pay: $199.99

OR

What item is right for you?

Ask our Experts!

The JDI Mk3 from Radial Engineering is a professional, passive direct box that converts hi-impedance instrument signals to a balanced low-impedance output, allowing long cable runs without noise. The unit is ideally suited for all instruments including keyboards, bass guitar and acoustic guitars for use in studio, broadcast and live sound reinforcement.

Because of the transformer, the JDI provides 100% isolation between the instrument input side and the balanced output, eliminating hum and buzz caused by ground loops. Passive DIs that use inexpensive iron or steel core transformers can degrade sound through phase shift at various frequencies, a phenomenon known as group delay. This has the effect of making bass sound indistinct, causing the mid-range to smear and lack punch.

The JDI employs a Jensen transformer with a nickel-laminated core which does not retain a memory or polarity. This reduces phase distortion, improves linearity and lowers harmonic distortion. A 15dB pad is provided for high level instruments to avoid input distortion. A merge switch converts the thru output to a second input, allowing two signals, such as those from a stereo keyboard, to be summed to mono when input channel availability is limited.

The unit is built to withstand the abuse of the road. The book-cover design features an internal 14-gauge steel skeleton that is corner welded to ensure the internal electronics will never be subjected to outside stress. The military grade PC board is mounted on steel pem nuts and the whole is then enclosed in a second steel casing. The passive design requires no power source.

Phase coherent professional direct box with 100% passive design and Jensen Transformer equipped
Ultra linear performance from 10Hz to 40kHz
Dual function inputs with two-channel merge
Polarity reverse, ground lift and pad switches
Ultra-durable welded steel chassis with double sided printed circuit board
No-slip bottom pad and protective channel for switches
Ideal for acoustic guitars and basses, keyboards, modules and electronic drums
Input Connections 1 x 1/4" TS phone
Output Connectors 1 x XLR
1 x 1/4" TS phone Thru
Input Level +19dB
Output Level Not specified by manufacturer
Controls -15dB pad
Polarity reverse
Ground lift switch
Merge of Input and Thru
Parallel 12" speaker emulation switch
Frequency Response 10Hz to 40kHz
Noise SNR: 119dB
Power Passive
Dimensions (WxDxH) 6 1/2" x 4" x 3" (shipping)
Weight 1 .92 lbs (shipping)
Specialties Merge function converts the input and thru output jacks to left and right inputs and mixes them to mono at the XLR
Radial Engineering JDI Mk3 - Professional Passive Direct Box with Jensen Transformer
  • Three (3) Year Transferable Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Radial EngineeringJDI Mk3 Direct Box
     
    5.0

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars

       

      (2)

    • 4 Stars

       

      (0)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    Reviewed by 2 customers

    Sort by

    Displaying reviews 1-2

    Back to top

     
    5.0

    Great DI

    By FM

    from Toronto ON

    Verified Buyer

    Pros

      Cons

        Best Uses

          Comments about Radial Engineering JDI Mk3 Direct Box:

          Have 4 of them. They work great. Never had a problem.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          GREAT

          By raqmon

          from asheboro nc

          About Me Professional Musician

          Verified Buyer

          Pros

          • Clear Sound
          • Compact
          • Easy To Use

          Cons

            Best Uses

            • Home Studio
            • Performances
            • Professional Recording

            Comments about Radial Engineering JDI Mk3 Direct Box:

            This is exactly what I was looking for .
            No hum no noise. Different club every weekend now I don't have to worry about hum. Highly recommended.

            Share this review

            Cables

            See more

            Add interconnectivity options for your equipment.

            Hosa Technology - REAN 1/4" Pro Guitar Cable - 10'
            • You Pay: $6.72
             

            Mounting

            Mount your device with the appropriate hardware.

            Radial Engineering - J-CLAMP - Fixed Mount for J-Series DI Boxes
            • You Pay: $29.99
            Special Order ?
            This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.
            PayPal Orders
            PayPal orders will be charged when the order is placed.
            International Orders
            For international orders, credit cards will be charged at time you place your order.
             

            Cases & Protection

            Carry, store and protect all your equipment in a bag or case.

            Pelican - 1200 Case with Foam (Black)
            • You Pay: $39.15
             

            Rack Accessories

            Rack-mount your device with the appropriate hardware.

            Radial Engineering - J-Rak 4 Radial Rack and Panel Adapter
            • You Pay: $119.99
            Special Order ?
            This is a Special order item. Est. arrival at B&H is 7-10 business days (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.
            PayPal Orders
            PayPal orders will be charged when the order is placed.
            International Orders
            For international orders, credit cards will be charged at time you place your order.
             
            View all Accessories
            See any errors on this page? Let us know.

            Close

            Close

            Close