Radial ProDIItem ID: ProDI
Passive Mono Direct Box with Custom Transformer and Rugged I-beam Construction
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From Our Research Team:
High-quality Direct Box from Radial!The Radial ProDI is a high-quality, passive mono direct box that's perfect for use with acoustic guitars, bass guitars, electric pianos, and synthesizers. The ProDI's custom transformer helps to deliver the highest performance possible, virtually eliminating issues with noise. And, as with all Radial DI boxes, the ProDI is incredibly reliable and easy to use — just plug in your mono instrument and instantly eliminate ground loops, while enjoying a rich, full sound. If you need the same excellent quality, in a stereo version, Radial also offers a stereo version of the ProDI, the ProD2.
Raidal ProDI Passive Mono Direct Box at a Glance:
Passive vs. Active DI
The Radial ProDI and ProD2 (stereo version) are full-range passive direct boxes. Active direct boxes employ electronic circuits to change the impedance from hi-Z to lo-Z and balance the signal. Passive DIs instead employ a simple passive transformer to do the work. Active DIs require batteries, 48V phantom-power or external power supplies to power their circuits, while passive transformer-equipped direct boxes do not require any power to perform their task. The advantage of a transformer over typical active circuits can be summarized as "a great device to reduce system noise" in a sound system. To accomplish the task of noise elimination, the Radial ProDI and ProD2 features first-class transformers and require no batteries or power supply.
Custom Isolation Transformer
The Radial ProDI is equipped with a custom-made audio transformer, which provides exceptional signal handling without saturation. More importantly, the ProDI's custom transformer has extremely low phase distortion in the critical bass and mid regions. The ProDI's transformer provides 100% isolation, to eliminate hum- and noise-causing ground loops, while maintaining signal integrity. Inside the ProDI you'll also find isolated XLR connectors, to eliminate chassis ground potential, as well as a military-spec PC board, with full surface ground plane to reduce susceptibility to RF noise. The result is exceptional clarity and definition, at an attractive price point.
Really Easy to Use
The best feature of the ProDI is "plug and play" ease of use. All you do is connect the instrument to the 1/4" inputs, the 1/4" through jack to the stage amplifier(s) or mixer and the XLR output to the mixing console and you are done. Any distortion? Hit the -15dB pad. Any noise? Just depress the ground lift switch. You will find that with acoustic guitars and basses, the natural tone of the instrument will shine through with a smooth and musical rendering. For electrically powered devices, such as keyboards, the ProDI will immediately eliminate troublesome ground loops while delivering solid dynamics, with a full rich sound.
Look inside a ProDI and you'll find the build quality and components to be of only the highest professional standards. Radial's proven construction methods and materials ensure years of trouble-free service — able to withstand the rigors of the most demanding, high-use professional environments. Radial pioneered the use of its innovative "book cover" design, which provides a protective zone around the switches and connectors that keeps the components safe. The 14-gauge welded I-beam inner chassis and 14-gauge outer shell found in the ProD2 and ProDI greatly reduce the possibility of torque stresses being applied to the PC board. Stress on circuit boards causes broken and intermittent solder joints, a common cause of failure in commercial rental and other high-use environments. A full-bottom no-slip rubber pad works double-duty by providing protection from electrical shock and making sure these DI's stay put.
Radial ProDI Passive Mono Direct Box Features:
The Radial ProDI offers superb performance, at an affordable price — ideally suited for use with acoustic guitar, bass and keyboards!
Can We Help?Sweetwater's friendly and knowledgeable Sales Engineers are regarded as the most experienced and educated professionals in the music industry, with extensive music backgrounds and intense training on the latest products and technologies. As your personal contact here at Sweetwater, they are available to provide personalized advice any time you need it.
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Reviewsbased on 12 reviews
by Zach B. from United StatesThe sound quality that this direct box provides is impeccable. During rehearsal the church that I mix for found themselves short one Direct Box when we added another guitarist to the team. For rehears... read more [+]al purposes only we had to have him plug directly into the input on the stage (using a 1/4 inch to xlr cable). The sound was awful! After purchasing a PRO DI and having the acoustic player plug into it the sound quality was drastically better. These DIs not only sound great, but the rugged design and durability is superb. Stop looking at cheaper DIs and buy this one. It is worth the money! close [-]
May 22, 2012
Music Background: Live Sound Engineer
Excellent! Pure signal thru and No noise!
by Gary DeJong from South DakotaI have always used low priced DI boxes, because I didn't really understand what they did. I just knew I had to convert my guitar signal through one of these to run long distances through the snake...... read more [+] until the sound engineer at a show came up and said, "Use this DI box. I'm getting noise through yours." He handed me the ProDI, and what a difference! I still don't really know how they work, but I do know there is a huge difference. I bought my own! close [-]
December 21, 2011
Music Background: Musician
Absolutely Worth It
by Jared fromNever thought our direct boxes were that big of a deal until I went to buy a new one. I thought the $30-$50 ones would give you what you needed. I was so wrong, professional musician friend convince... read more [+]d me to give thie a try, and I'll never go back to cheap DI's. The difference was startling, and actually made me feel really foolish for using the cheap ones for so long. Spend the money, it's a fraction of what your guitar cost and it makes all the difference. close [-]
October 12, 2011
Music Background: Soung Guy / Average Guitarist
Excellent Quality! Worth the money!
by Josh from Philippi, WVGranted, a DI is usually not considered a "cool" piece of gear. It comes with no effects, and is usually not something you can impress somebody with. But for those who are serious about clean, unalter... read more [+]ed sound, then a quality DI is very much in demand.
July 14, 2011
Music Background: Instrumental Musician, Instructor, Live Sound Engineer
The Pro DI goes beyond quality, both in sound and construction. These things may literally be bullet-proof! Short of repeated drops from the top of a building onto pavement, one would be hard-pressed to damage the internal components. Also, with the outer "jacket" being slightly larger than the main body, a direct impact to the jacks due to a drop is nearly impossible. Being indestructible, however, means nothing if the sound is bad, but this DI sounds great! They are crystal clear, allowing only the true sound of the instrument pass through.
I replaced three budget DI boxes in my church with three Pro DI units, and the difference was immedeate and drastic. As other reviewers have mentioned, the Jensen-equipped units are probably even better (if that's possible), but for the modest sound system at my church, these are as good as it gets.
Do not hesitate to shell out a few extra dollars on this DI. High dollar instruments and accessories can only sound their best if the DI isn't junk. The Pro DI, however, is aptly named, because it truly is a professional piece of equipment. Highly recommended! close [-]
This is the best DI under $100, period. You will be amazed by the clean, powerful, noise-free signal it produces and kick yourself for not getting one sooner. Don't invest thousands in instruments and recording equipment and then skimp on a vital link in your chain. Houses of worship in particular have gobbled these up because at this price they can afford to outfit the whole worship band!
Jordan, Marquette, MI
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