
R8001020 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $372.95 | Condition is Open box, Radial Jdi Duplex Mk3 Stereo Direct Box JDI-DUPLEX Jensen Equipped- JDIDUPLEX, FREE SHIPPING | 100.0% |
![]() | $389.99 | Condition is Open box, Radial Engineering JDI Duplex Stereo Passive Direct DI Box, FREE SHIPPING | 100.0% |
![]() | $407.43 | Condition is Open box, Radial Jdi Duplex Mk3 Stereo Direct Box JDI-DUPLEX Jensen Equipped, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $329.99 | Top Pick! Condition is Used, Radial Engineering JDI Duplex Stereo Passive Direct DI Box, shipping cost = $11.28 | 99.8% |
![]() | $385.00 | Condition is Used, Radial JDI Duplex Dual Passive Direct Box, shipping cost = $10.13 | 99.2% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $479.99 | Condition is New, Radial JDI Duplex - Jensen Equipped 2-channel Passive Instrument Direct Box, FREE SHIPPING | 99.8% |
![]() | $479.99 | Top Pick! Condition is New, Radial Engineering JDI Duplex - Two Channel Professional Passive Direct Box NEW!, FREE SHIPPING | 99.4% |
![]() | $479.99 | Top Pick! Condition is New, Radial JDI Duplex Dual Passive Direct Box, FREE SHIPPING | ![]() |
![]() | $479.99 | Condition is New, Radial Duplex Stereo direct box with Jensen transformer, FREE SHIPPING | 100.0% |
![]() | $479.99 | Condition is New, Radial Engineering JDI-DUPLEX Passive Premium Stereo Direct Box, FREE SHIPPING | 100.0% |
![]() | $479.99 | Condition is New, Radial Jdi Duplex Mk3 Stereo Direct Box, FREE SHIPPING | 99.5% |
![]() | $479.99 | Condition is New, NEW! Radial Engineering JDI Duplex Stereo Passive Direct DI Box, FREE SHIPPING | 100.0% |
![]() | $527.99 | Condition is New, Radial Duplex 2-Inputs Stereo Passive DI, FREE SHIPPING | 99.2% |

The Radial Engineering JDI Duplex MK3 Stereo Box, model number R8001020, is a high-quality, professional-grade guitar effects pedal designed for musicians who require a versatile and powerful solution for managing their stereo effects setup. This pedal is equipped with Jensen Transformers, making it a top choice for those seeking an authentic and rich tone.
The JDI Duplex MK3 Stereo Box is a dual-channel, true bypass pedal that allows for independent processing of two stereo effects loops. Each channel features a ground lift switch, which helps to eliminate unwanted hum and noise caused by ground loops. The pedal also includes a global bypass switch that disengages both channels at once when switched off.
The pedal's input and output jacks are robustly constructed and capable of handling high-impedance guitar signals. The input impedance is set at 1 Megohm, ensuring that your tone remains consistent and true. The output impedance can be adjusted from 100 ohms to 1 Megohm, allowing you to tailor the load to your specific effects chain.
The JDI Duplex MK3 Stereo Box is housed in a rugged and compact die-cast aluminum chassis, making it durable enough to withstand the rigors of live performance. The pedal is also powered by a standard 9V DC power supply (not included), and features a status LED that indicates power on/off and signal presence.
The Radial Engineering JDI Duplex MK3 Stereo Box with Jensen Transformers is an essential tool for any guitarist who requires a versatile and high-quality pedalboard solution for managing their stereo effects loops. Its robust construction, high-quality components, and Jensen Transformers make it a top choice for those seeking an authentic and rich tone.
The Radial Engineering JDI Duplex Mk3 Stereo Box with Jensen Transformers (model number R8001020) is a versatile DI box designed for musicians and audio engineers. Here are some pros and cons that might help you decide if this device is right for your needs:
Pros:1. High-quality Jensen transformers: The JDI Duplex Mk3 utilizes two Jensen transformers, which are known for their warm and natural sound. They help to eliminate unwanted noise and add a desirable tone to the signal.
2. Stereo operation: This DI box is designed to handle stereo signals, which is ideal for musicians who use multiple pickups or want to record in stereo.
3. Ground lift switch: The ground lift switch helps to eliminate unwanted hum and noise caused by ground loops.
4. XLR and 1/4" inputs and outputs: The JDI Duplex Mk3 offers both XLR and 1/4" connections, making it versatile for different applications.
5. Polarity reversal switch: The polarity reversal switch helps to correct phase issues between the input and output, ensuring a better sound.
6. Compact size: Despite its features, the JDI Duplex Mk3 is compact and easy to transport.
Cons:1. Price: The JDI Duplex Mk3 is more expensive than some other DI boxes on the market, which might be a deterrent for some buyers.
2. Limited features for advanced users: While the JDI Duplex Mk3 offers a range of useful features for most musicians and engineers, it may not have all the bells and whistles that more advanced users might require.
3. No power supply included: The JDI Duplex Mk3 requires a power supply, which is not included in the package. This means that you will need to purchase a separate power supply, which can add to the overall cost.
Conclusion:The Radial Engineering JDI Duplex Mk3 Stereo Box with Jensen Transformers is a high-quality DI box that offers a range of useful features for musicians and audio engineers. Its use of Jensen transformers helps to eliminate noise and add a desirable tone to the signal, while its stereo operation and versatile connections make it a versatile tool for different applications. However, its higher price point might be a deterrent for some buyers, and advanced users may find that it lacks some of the more advanced features they require. Ultimately, if you are in need of a high-quality stereo DI box with a warm and natural sound, the JDI Duplex Mk3 is definitely worth considering.
Recommendation:If you are looking for a high-quality stereo DI box with Jensen transformers and a range of useful features, the Radial Engineering JDI Duplex Mk3 Stereo Box is a great option to consider. While it may be more expensive than some other DI boxes on the market, its warm and natural sound and versatile connections make it a valuable addition to any musician's or audio engineer's arsenal. However, if you are on a budget or require more advanced features, there may be other options that better suit your needs. Ultimately, it's important to weigh the pros and cons carefully and make a decision based on your specific requirements and budget.
Details:
Radial jdi duplex 2-channel passive di at a glance high common mode noise rejection. Radial jdi duplex 2-channel passive di at a glance: jensen transformer for optimum performance. Exceptional signal handling. Virtually zero phase harmonic distortion.
Welded i-beam construction. 100% isolation eliminates ground loops.
specifications audioproequip:
- brand: Radial Engineering
- mpn: R8001020
- part type: Box
returns audioproequip:
- policy: returns accepted
- time: 30 days
- paid by: buyer
- method: money back
shipping audioproequip:
- transit: 4-10 days
- carrier: ups
- class: standard
- type: fixed
- service: ups ground
offer audioproequip:
- started: march 11, 2025
- in stock #: 5
- prices: $329.99–$527.99
- item condition:
- Open box
- Used
- New
- options: ship-to-home
- availability: in stock
- sold #: 21
seller audioproequip:
- # reviews: 8357
- rating: 98.1%
- city: kingston, new york
payments audioproequip:
- other
- wallet: paypal
- credit card: visa
general audioproequip:
- category: Musical Instruments > Pro Audio Equipment Parts
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