All
 
  • Login
  • 866-498-7882
  • My Account
  • Wish List
  • Financing
  • Help
  • Feedback
  • Change
  • Products
    • Guitars
      Top Categories
      1. All Guitars
      2. Electric Guitars
      3. Acoustic Guitars
      4. Acoustic-Electric Guitars
      5. Classical Guitars
      6. Left-Handed Guitars
      7. Guitar Value Packs
      8. Guitar Accessories
      Related Products
      1. Guitar Amps
      2. Pedals & Effects
      3. Strings
      4. Cases & Gig Bags
      5. Stands & Hangers
      6. Straps
      7. Picks
      8. Cables
      9. Folk Instruments
      Top Brands
      1. Fender
      2. Gibson
      3. Epiphone
      4. Ibanez
      5. Martin
      6. Music Man
      7. Taylor
      8. ESP
      9. PRS
    • Platinum Guitars
      Buy Platinum Inventory
      1. Platinum Guitars
      2. Platinum Bass
      3. Platinum Amps
      4. Boutique Pedals
    • Bass
      Top Categories
      1. All Bass
      2. Electric Bass
      3. Acoustic Bass
      4. Electric Upright Bass
      5. Left-Handed Bass
      6. Electric Bass Value Packs
      7. Bass Accessories
      Related Products
      1. Bass Amps
      2. Pedals & Effects
      3. Strings
      4. Cases & Gig Bags
      5. Stands & Hangers
      6. Cables
      Top Brands
      1. Ibanez
      2. Schecter
      3. Fender
      4. Music Man
      5. ESP
      6. Dean
      7. Squier
    • Drums & Percussion
      Top Categories
      1. All Drums & Percussion
      2. Acoustic Drums & Sets
      3. Electronic Drums & Sets
      4. Cymbals
      5. Hand Drums & World Percussion
      6. Drum Hardware
      7. Marching Percussion
      8. Concert Percussion
      9. Classroom & Kids
      10. Accessories & Parts
      Related Products
      1. Sticks & Accessories
      2. Heads
      3. Stands & Racks
      4. Cases, Bags & Covers
      5. Drum Mics
      6. Thrones
      7. Drum Amps & Monitors
      8. Software & Virtual Instruments
      Top Brands
      1. DW
      2. Pearl
      3. Zildjian
      4. Sabian
      5. Tama
      6. Vic Firth
      7. Remo
      8. PDP
      9. Gretsch
    • Live Sound Equipment
      Top categories
      1. All Live Sound
      2. PA Systems
      3. PA Speakers
      4. Live Power Amps
      5. Stage Monitors
      6. Stage Subwoofers
      7. Signal Processors
      8. Mixers
      9. Dynamic (Live) Microphones
      10. Wireless Systems
      11. Headphones
      12. Power Conditioners
      13. DJ Equipment
      14. Stage Lighting & Effects
      Related Products
      1. Stands & Racks
      2. Cases & Gig Bags
      3. Cables & Snakes
      4. PA Replacement Speakers & Parts
      5. Stage Accessories
      6. Software & Virtual Instruments
      7. iOS Devices
      Top Brands
      1. JBL
      2. QSC
      3. Mackie
      4. Electro-Voice
      5. Bose
      6. Behringer
      7. Shure
    • Microphones & Wireless
      Top Categories
      1. All Microphones
      2. All Wireless Systems
      3. Condenser (Recording) Microphones
      4. Dynamic (Live) Microphones
      5. USB Microphones
      6. iOS Microphones
      7. Drum Microphones
      8. Microphone Packs & Kits
      9. Microphone Accessories
      Related Products
      1. Stands & Booms
      2. Cases & Gig Bags
      3. Cables
      4. Microphone Preamps
      5. Vocal Processors
      6. Vocal Software
      Top Brands
      1. Shure
      2. MXL
      3. Audio-Technica
      4. AKG
      5. Sennheiser
      6. Blue
      7. Electro-Voice
    • Amplifiers & Effects
      Top Categories
      1. All Amps & Effects
      2. Guitar Amps
      3. Bass Amps
      4. Amp Stacks
      5. Mini Amps
      6. Headphone Amps
      7. Keyboard Amps & Monitors
      8. Drum Amps & Monitors
      9. Harmonica Amps
      10. Guitar Effects
      11. Bass Effects
      Related Products
      1. Covers & Cases
      2. Stands
      3. Tubes & Parts
      4. Cables & Snakes
      5. Stage Lighting & Effects
      6. Preamps
      Top Brands
      1. Fender
      2. Marshall
      3. Line 6
      4. Boss
      5. Dunlop
      6. Vox
      7. Peavey
    • Keyboards & MIDI
      Top Categories
      1. All Keyboards & MIDI
      2. Production & Groove
      3. Digital Pianos
      4. Synthesizers
      5. Workstations
      6. Portable & Arranger Keyboards
      7. MIDI Controllers
      8. MIDI Interfaces
      9. iOS Keyboards
      10. Keyboard Accessories & Parts
      Related Products
      1. Keyboard Amps & Monitors
      2. Benches & Stools
      3. Stands & Racks
      4. Keyboard Pedals
      5. Cases & Gig Bags
      6. Cables
      7. Power Supplies
      8. Software & Virtual Instruments
      9. Accordions
      Top Brands
      1. Korg
      2. Casio
      3. Yamaha
      4. Roland
      5. Akai
      6. M-Audio
      7. Moog
      8. Nord
      9. Native Instruments
    • Accessories
      Top Categories
      1. All Accessories
      2. Strings
      3. Cables & Snakes
      4. Cases & Gig Bags
      5. Stands & Racks
      6. Tuners & Metronomes
      7. Guitar & Bass Parts
      8. Power & Batteries
      9. Furniture & Studio Foam
      10. Care & Cleaning
      11. Practice & Performance Aids
      12. Tools
      Related Products
      1. Pedals & Effects
      2. Pickups
      3. Software & Virtual Instruments
      4. Books, Sheet Music & Media
      5. Gifts, Collectibles, & Clothing
      6. Personal & Home Entertainment
      7. iPad
      8. iPad Apps
      Top Brands
      1. D'Addario
      2. Ernie Ball
      3. Dunlop
      4. ProLine
      5. Live Wire
      6. Hercules
      7. Levy's
      8. EMG
    • Recording & Software
      Top Categories
      1. All Recording
      2. All Software
      3. Audio Interfaces
      4. Studio Monitors
      5. Studio Subwoofers
      6. Recording Packages
      7. Recorders
      8. Audio Playback
      9. Microphones
      10. Headphones
      11. Signal Processors
      12. Mixers
      13. Computers & Peripherals
      Related Products
      1. Furniture & Studio Foam
      2. MIDI
      3. Books, Sheet Music & Media
      4. Benches & Stools
      5. Stands & Racks
      6. Cables & Snakes
      7. Power & Batteries
      8. Disc Duplication
      9. Recordable Media & Memory
      10. iOS Devices
      11. iPad
      12. iPad Apps
      Top Brands
      1. TASCAM
      2. M-Audio
      3. Apple
      4. Avid
      5. Ableton
      6. KRK
      7. PreSonus
      8. Focusrite
      9. Native Instruments
    • iPad, iPod & iOS Devices
      Top Categories
      1. All iOS
      2. iOS Audio/MIDI Interfaces
      3. iOS DJ Gear
      4. iOS Mixers
      5. iOS Keyboards
      6. iOS Microphones
      7. iOS Live Sound
      8. iOS Docks & Speaker Systems
      9. iOS Accessories
      10. iPad
      11. Apps
      12. iPods & MP3 Players
      Related Products
      1. Headphones
      2. Software
      3. Cables & Snakes
      4. Computers & Peripherals
      Top Brands
      1. AirTurn
      2. Apogee
      3. Apple
      4. Blue
      5. IK Multimedia
      6. Mackie
    • DJ & Lighting
      Top Categories
      1. All DJ
      2. Lighting & Effects
      3. Controllers & Interfaces
      4. DJ CD, MP3 & Media Players
      5. Mixers & Parts
      6. Packages/Systems
      7. Turntables
      8. iOS DJ Gear
      9. DJ Accessories
      10. Headphones
      11. DJ & Remix Software
      Related Products
      1. Karaoke
      2. PA Systems
      3. Microphones & Wireless
      4. Production & Groove
      5. Cables & Snakes
      6. Stands & Racks
      7. Cases & Bags
      8. Lighting Stands & Truss
      Top Brands
      1. Chauvet
      2. Native Instruments
      3. Pioneer
      4. Numark
      5. JBL
      6. eMedia
      7. MJS
    • Books & Videos
      Top Categories
      1. All Books & Videos
      2. Instruction Materials
      3. Tablature
      4. Sheet Music
      5. Music Education for Children
      6. Music Theory & History
      7. Music Industry & Special Interest
      8. Pro Audio Instruction
      Related Products
      1. Sheet Music & Scores
      2. Performance Instruction
      3. Tablature
      4. Music Education for Children
      5. Music Theory & History
      6. Music Industry & Special Interest
      7. Pro Audio Instruction
      8. En Espanol
      Top Brands
      1. Hal Leonard
      2. Alfred
      3. eMedia
      4. MJS
      5. Cengage
      6. Carl Fischer
      7. Mel Bay
      8. Cherry Lane
    • Folk & Wind Instruments
      Top Categories
      1. All Folk & Wind Instruments
      2. Ukuleles
      3. Banjos
      4. Mandolins
      5. Resonators
      6. Pedal & Lap Steels
      7. Latin Guitars
      8. Harmonicas
      9. Accordions
      Related Products
      1. Strings
      2. Cases & Gig Bags
      3. Cables
      4. Stands & Hangers
      5. Guitar Accessories
      6. Books, Sheet Music & Media
      7. Tuners & Metronomes
      Top Brands
      1. Fender
      2. Hohner
      3. Lanikai
      4. Rogue
      5. Suzuki
      6. Gretsch
      7. Deering
    • Band & Orchestra
      Top Categories
      1. All Band & Orchestra
      2. Woodwind Instruments
      3. Brass Instruments
      4. Orchestral Strings
      5. Marching Band
      6. Concert Percussion
      7. Classroom & Kids
      Related Products
      1. Woodwind Accessories
      2. Brass Accessories
      3. Orchestral Strings Accessories
      4. Marching Accessories
      5. Concert Percussion Accessories
      6. Books, Sheet Music & Media
      7. Tuners & Metronomes
      Top Brands
      1. Vandoren
      2. Yamaha
      3. Rico Reeds
      4. Buffet Crampon
      5. Bach
      6. Selmer Paris
    • Vintage
      Vintage Gear
      1. Vintage Guitars
      2. Vintage Bass
      3. Vintage Drums
      4. Vintage Amps & Effects
      5. Vintage Keyboards
      6. Vintage Microphones
    • Guitar Center Gift Card
  • Brands
    • Fender
    • Gibson
    • Epiphone
    • Martin
    • Taylor
    • Yamaha
    • Ibanez
    • Roland
    • Line 6
    • Shure
    • Dunlop
    • Ernie Ball
    • D'Addario
    • Remo
    • Apple
    • All Brands
  • Used Gear
    • All Used Gear
    • Vintage Gear
    • Used Guitars
    • Used Amps
    • Used Bass
    • Used Drums
    • Used Live Sound
    • Used Recording
    • Used Accessories
    • Used Keyboards
    • Sell Your Gear
  • Clearance
    • Clearance
  • GC Pro
    • Featured Products
    • Installation Services
    • Technical Support
    • Education Affiliates
  • Our Stores
    • Store Locator
    • GC Garage
    • GC Studios
  • Learn
    • Music Mentor
  • GC Music
    • GC on Tumblr
    • Sessions TV
    • Artist Interviews
    • Podcasts
    • Connections
    • YouTube
    • Facebook
    • Twitter

Item # 153906 | Customer Ratings: Ratings ( 5 Based on 1 reviews)

Print this page

  1. Select the information you'd like to print out.
  2. Cancel
Radial Engineering JDI Duplex mk4 Stereo Direct Box
Use Add to Cart below to have it shipped to you, or to a store near you.
Close
  • Store
  • Availability
Guaranteed Lowest Price
Pickup In Store
GC Shopping Cart
 Cart Contents
Qty Description Price Shipping Subtotal 
      Radial Engineering JDI Duplex mk4 Stereo Direct Box (153906)
Availability:  


Pickup In Store
GC Shopping Cart
 Cart Contents
Qty Description Price Shipping Subtotal 
      Radial Engineering JDI Duplex mk4 Stereo Direct Box (153906)
Availability:  


It just might be the world's finest direct box.

Now with dual -10dB RCA connectors and dual +4db XLR inputs. Passive DI employs a Jensen isolation transformer for optimum audio performance offering outstanding linearity at all frequencies, combined with extraordinary level handling without introducing distortion. The completely passive plug & play JDI does not require any power and has the unique advantage of eliminating 60-cycle ground loops. This makes it a definite favorite with informed audio engineers. Great for guitars, bass, and keyboards and particularly adept with high-output, broadband instruments such as active instruments and digital keyboards. May be rackmounted using the J-RAK Adaptor (not included).

Housed in a 14 gauge steel welded I-beam chassis, it protects all connectors and switches with a unique book-end design. The input panel is equipped with a pair of 1/4" and RCA inputs and thru-puts. A unique Merge function provides passive mix to convert the in/thru routing into a stereo-to-mono mix function--a valuable channel saver for large keyboard rigs and multiple audio sources. Each channel is also outfitted with a 10kHz low-pass filter to eliminate high-frequency system noise and a 15dB pad for greater source control. A switch on each channel allows the user to select the XLR male input. This simultaneously introduces a 20dB pad to allow high output +4dB line level devices to interface into snake systems and splitters without requiring an external attenuator. The rear panel features the XLR inputs and outputs along with polarity reverse and ground lift.

Radial Engineering JDI Duplex mk4 Stereo Direct Box Features:

  • -10dB RCA connectors
    +4db XLR inputs
    Jensen transformer-equipped passive DI
    100% isolation eliminates ground loops
    Virtually zero phase & harmonic distortion
    Exceptional signal handling
    High common mode noise rejection




Radial Engineering JDI Duplex mk4 Stereo Direct Box

90 day warranty on footswitch and tubes. One year warranty on all other products.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 1 reviews)
Sort reviews:
Viewing Reviews 1 - 1 of 1 |
  • Radial really knows how to design, engineer and build pro gear.

    As reviewed by PB on 9/24/2010

    I purchased this Radial JDI Duplex MK4 for interfacing my Yamaha XS7 unbalanced audio outputs to balanced inputs on main mixer in recording studio. This resolved a ground loop problem that was causing hum. (Why Yamaha uses unbalanced audio outputs, where my Roland Fantom X, Kurzweil PC3, and Roland RD-700GX keyboards all have all balanced audio outputs is a mystery to me. But that is another story...) Maybe I could have resolved the hum issue with less expensive gear, but I suspect I would have degraded the sonic output of the XS7 using anything of lesser quality than this unit. So how does the keyboard sound with the JDI connected in-line? Well, all I can say is that whatever comes out of the XS7 is exactly what it should be: Full depth of the immense palate of sounds that this keyboard puts out, no coloration, no distortion and NO HUM! This JDI MK4 uses the renowned top quality Jensen transformers and high quality circuitry. The construction of the unit is professional grade. It weighs almost 3 lbs and 'built like a tank'. The input and output layout was well thought out. The numerous features available on this makes it versatile for any DI application you may have. Just go on Radial's web site. The information there is a lot more than marketing hype and very informative. The excellent information I got from the web was the final determining factor that led me to choose the JDI Duplex MK4. Now that I have this unit, I know that I made the right decision. I normally do not have time to write reviews and I am not in the music retail or distribution business in any way, shape or form writing patronizing reviews for hypeing product. I just felt compelled to write a review to show my appreciation for the engineering and quality that Radial put into this box. I believe that credit is due where credit is earned and this JDI Duplex MK4 has certainly earned my positive review. And I am now going to add the JDV to my gear as I see a number of uses for that active DI in my setup. I know I won't be disappointed.

    6 of 6 people found this review helpful.
    Was this review helpful?
Questions about the JDI Duplex mk4 Stereo Direct Box (153906)


To: GuitarCenter.com
PO Box 4769
Westlake Village, CA 91359
USA
866-498-7882
 
Order #: (if applicable)  * Denotes Required Field
*First Name:
*Last Name:
*Email:
Phone:
*Subject:
*Message:
Click to add file attachment
File Upload 5mb limit