SKU: 39951971069

Radial Engineering DUPLEX Passive Stereo Direct Box

Sale price$256.50 Regular price$285.00
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Radial Engineering DUPLEX Passive Stereo Direct BoxThe Radial JDI Duplex is a full feature, stereo passive direct box designed to enhance connectivity, reduce noise, and simplify the hectic life of the touring professional, broadcast engineer or AV integrator. It is plug and play easy to use while delivering the utmost sonic quality. Like the Radial JDI, the Duplex employs two high performance Jensen audio transformers with the same pristine audio signal path that has made the JDI the industry

The Radial JDI Duplex is a full-feature, stereo passive direct box designed to enhance connectivity, reduce noise, and simplify the hectic life of the touring professional, broadcast engineer or AV integrator. It is plug-and-play easy to use while delivering the utmost sonic quality.

Like the Radial JDI, the Duplex employs two high-performance Jensen audio transformers with the same pristine audio signal path that has made the JDI the industry standard. It features exceptional signal handling with virtually zero phase shift or harmonic distortion, while remaining linear across the entire audio spectrum. When driven to extremes, the natural transformer saturation and resulting warm Bessel curve makes the Radial Duplex the perfect choice for smoothing out highly dynamic instruments such as digital pianos and electronic drums that can sound harsh when pushed. Transformer isolation provides the additional benefit of eliminating troublesome ground loops that can cause hum and buzz in the audio system or interfere with video displays.

This 'Swiss Army knife' DI is equipped with ¼' connectors for instruments, RCA connectors and a 3.5mm TRS for unbalanced -10dB consumer electronics plus XLR inputs for +4dB professional line sources. Radial's innovative book-end design provides protective zones on the front and rear to keep connectors and switches out of harm's way. The 14 gauge I-beam inner frame adds tremendous rigidity to eliminate outside stresses that could torque the PC board and cause premature solder joint and trace failure. The steel outer shell couples with the transformer's MuMETAL® shield to protect against stray magnetic fields from power transformers or lighting systems that could cause interference. Finally, a full-bottom no-slip pad works double-duty by providing both mechanical and electrical isolation. The Radial Duplex delivers outstanding connectivity, superlative audio and quiet dependable performance..

JDI Duplex… the world's finest passive stereo direct box.

Shipping Notes
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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
SKU: 39951971069

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4.2 ★★★★★
Based on 26 reviews
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Grace Marie
Phoenix, US
★★★★★ 5
A fun read for new moms!
Format: Kindle
I got it as soon as I read “I’m I pregnant or is it just a fart” during my TWW, can’t wait for a part 2.
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Reviewed in the United States on February 5, 2025
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Verified Purchase
Collin M.
Carnegie, US
★★★★★ 5
Finally a Place to Store All those Soap Pieces! Self-Lathering, Exfoliating, Good Quality, Love it!
Style: Sport
These soap saver pouches are a really nice upgrade to using regular bar soap and a loofah or washcloth. I love that I can just drop in a full bar, along with all those tiny leftover pieces, and still get great use out of them, while also getting a nice scrub that has a good exfoliating texture without feeling too harsh. It's a medium-like "grit" so just be aware, and both sides feel equally scrubby, and the inner pad material helps the soap foam up easily when you rub it together, making it feel efficient. The three-pack with different colors is convenient for multiple bathrooms or spares, and the little inner loop lets you cinch the opening so smaller soap bits don’t fall out. It does need to be hung to dry since it holds onto moisture, and your soap may go a bit faster because of that constant self-lathering as you use it, but it’s not too bad, and a fair trade-off for how easy and effective it is. All in all, these are well-designed and genuinely useful. Definitely recommended!
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Reviewed in the United States on February 4, 2026
D
Verified Purchase
DaveC
Carnegie, US
★★★★★ 5
Exfoliating, durable, helps bars of soap last much longer.
Style: Sport
Am very happy with the convenience and longevity of this product. In addition the exfoliating properties they really do help make my bars of (sometimes quit expensive) soap in the shower last a lot longer - as much as 3 to 5 times as long. I simply hang it up or place on a shower caddy after rinsing the excess suds off and no more soft, soggy bars of leftover soap laying around. Having tried many different versions of these and I find this style is the easiest to get to properly hold onto any odd shaped or larger bars of soap without the soap accidentally popping out in the shower during use. They also seem to outlast many of the other soap savers. They don’t unexpectedly start unraveling after just a few uses like some of the bath poufs tend to do.
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Reviewed in the United States on March 16, 2026
D
Verified Purchase
D Leigh
Bozeman, US
★★★★★ 4
Really good, however, a drawstring to keep the soap inside would be amazing
Style: Sport
I bought these sport soap saver bags and I really enjoy them. I exfoliate with loofah all the time so I did not find the grit of this soap saver bag too abrasive. I found it perfect. I washed and lathered all my parts no problem. I had a half gone bar of soap I put inside upon receiving these bags, and the lather was amazing. The soap did move around the smallest little bit because it was smaller. I assume with a brand new bar soap It’s much easier to use. But that happens with all of these same design products. A drawstring at the end of the soap saver bag would make this five stars all day. I would definitely buy these again based on the quality and exfoliation level.
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Reviewed in the United States on September 18, 2025
S
Verified Purchase
Sam
Carnegie, US
★★★★★ 5
Great exfoliant!
Style: Sport
Great scrubber!! Definitely comes in handy during the cold months to help deep exfoliate where you need it most.
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Reviewed in the United States on May 8, 2026

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