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Description
Radial Stereo Passive DI for Keyboards and other Stereo InstrumentsAchieve superior sound quality with the Radial JDI Stereo Passive Direct Box, the ultimate choice for passive stereo direct boxes. Featuring two Jensen audio transformers, the JDI Stereo balances signals and lowers impedance for long cable runs without noise. These transformers are designed with a unique nickel core stack, proprietary winding techniques, dual Faraday shields, and MuMETAL protection, ensuring exceptionally low distortion and the
Achieve superior sound quality with the Radial JDI Stereo Passive Direct Box, the ultimate choice for passive stereo direct boxes. Featuring two Jensen audio transformers, the JDI Stereo balances signals and lowers impedance for long cable runs without noise. These transformers are designed with a unique nickel core stack, proprietary winding techniques, dual Faraday shields, and MuMETAL® protection, ensuring exceptionally low distortion and the ability to handle extreme transients across all frequencies. Built with a heavy-duty steel shell and internal I-beam construction, the JDI Stereo is engineered for reliability in even the most demanding touring environments.
Features
- Dual Jensen Transformers: Two channels equipped with Jensen JT-DBE transformers for balanced signals and low impedance.
- Nickel Core Stack and MuMETAL® Shielding: Provides superior noise elimination and protection against external fields.
- Passive Operation: No power required, simplifying setup and use.
- High Dynamic Range: 135dB dynamic range with low total harmonic distortion (0.05% from 20Hz to 20kHz @ -10dB).
- Heavy-Duty Construction: Built with a 14-gauge steel chassis and internal I-beam for durability.
- Additional Features: Input pad and ground lift switch for flexibility in various environments.
Specifications
- Audio Circuit Type: Passive, transformer-based
- Transformer: Jensen JT-DBE
- Number of Channels: Two channels (dual 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 Connectors: Unbalanced 1/4"
- Output Connectors: XLR out, 1/4" thru
- Construction: 14 gauge steel chassis & outer shell
- Size: 127mm x 84.1mm x 45.5mm (L x W x D)
- Weight: 703g
- Shipping Size: 165mm x 102mm x 76mm (L x W x D)
- Shipping Weight: 870.9g
- Power: Passive, no power required
- Operating Conditions: For use in dry locations only between 5°C and 40°C
- Warranty: Radial 3-year, transferable
- Part Number: R800 1012 00
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
4.95 stars
Color: Black
TLDR: Buy it. It works well, it has impressive and useful features, it looks great, it’s thin/low-profile, and it’s a great price.
Detailed review: I’m very happy with this scale, and it has certainly upped my espresso game by leaps and bounds. I’m able to weigh my beans very precisely down to a tenth of a gram (roughly the weight of a single bean), so my dosing is on point. Also, it fits beneath the portafilter with room to spare for my cup, so I can weigh my shots and accurately measure my input/output ratio. And automatic mode is magic! When the espresso hits the cup, the timer starts running, so I can measure flow rate along with everything else! Overall, super easy to use and very necessary for the at-home barista.
One caveat: It acted weird on the 2nd or 3rd day, and I thought I was going to have to return it. The weight would slowly creep up even though I wasn’t adding any coffee. I dusted it off, made sure it was dry, set it on a more stable surface… I still don’t know what the matter was, but it stopped freaking out and it hasn’t really given me any trouble since. Also, I should mention that the automatic function doesn’t always work 100% perfectly; it works, and usually works quite well, but depending on the flow rate, you might get some drops dribbling into the cup and the timer not detect it right away. (I think the timer must be activated according to some sort of algorithm that looks for a certain increase in a certain amount of time, so a slower initial drip rate might not trigger it at first.) Also weirdly, it seems like about half of the time when the weight stops increasing (i.e., espresso stops flowing) , the timer pauses (as I think it’s supposed to do), but other times, the timer keeps running until you manually stop it. I don’t know… It’s a weird glitch, I guess, but it doesn’t really make any difference. The weight is accurate, and that’s the primary thing to keep an eye on.
So, is it perfect? No, I guess not. But, it works extremely well and functions perfectly for my purposes. In fact, it’s a lot nicer and fancier than I expected – plus, it’s more affordable and more streamlined than its obvious rival the Acacia.
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Reviewed in the United States on June 1, 2024
★★★★★ 5
Excellent and super accurate
Color: Black, Color: Black
I had a precision oxo which was more expensive than this one but not great though, it would register .4 grams suddenly and not sensitive to the 1-2 bean increments. I bought this one for espresso specifically and man it is fantastic so accurate, super responsive, well built, size is great if you want to weigh your shot under your portafilter. I have a fellow series 1 and it’s amazing working with it. Overall highly recommend and for the price it’s amazing great value! Not sure why would I buy a bookoo for $130 or a fellow scale for $200. This one works great for $40
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Just a tiny, accurate scale
Color: Black
Works flawlessly after I calibrated it compared to my other. Out of the box it was (very) off. Now it's within .1 of a gram. It's far more responsive than I expected. It's perfect for espresso and it's tiny so it fits on the smallest drip trays.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
A really nice scale at a budget price!
Color: Black
Does a really nice job for a budget scale! I had an Amazon basics scale (which works great and I still use!), but I needed/wanted a tenth of a gram for weighing Moka Pot water and coffee. I can put this scale on my water dispenser, measure out exactly what I need, then put the Moka Pot filter (in a glass jigger so it stands up :-) on the scale (with a magnetic espresso funnel) and measure out my coffee. It holds up to daily use and is accurate. Nice job for my first "professional" scale :-)!
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Reviewed in the United States on May 4, 2026
★★★★★ 4
Solid little workhorse
Color: Space Grey
Works well. Key part of my espresso setup. Battery charge lasts. Easy to use. My only gripe is that the power switch can be hard (for me) to turn on and off without lifting it up to find it.
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Reviewed in the United States on March 15, 2026
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