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Radial Pro DI Passive Direct Box

4.8 4.8 out of 5 stars 416 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Recording Signal Direct Boxes by Radial Engineering

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Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. You may receive a partial or no refund on used, damaged or materially different returns.

Purchase options and add-ons

Brand Radial Engineering
Model Name Radial Engineering
Connectivity Technology XLR
Unit Count 1.0 Count
Material Synthetic

About this item

  • Passive direct box
  • Proprietary transformer for impedance conversion and isolation
  • Linear from 20Hz-18kHz
  • Low distortion and zero phase distortion
  • XLR input

Customers usually keep this item

This product has fewer returns than average compared to similar products.

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This Item
Radial Pro DI Passive Direct Box
Radial Pro DI Passive Direct Box
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Details
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Price$129.99$29.00$89.99$129.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Value for money
4.3
4.5
4.7
4.2
Sound quality
4.7
4.6
5.0
Sturdiness
4.6
4.8
Sold By
GearTree
Amazon.com
Instrumentpro
Instrumentpro
power source
Corded Electric
Corded Electric
Corded Electric
Battery Powered
connectivity tech
XLR
TRS, XLR
TRS
weight
0.61 kilograms
0.44 pounds
0.44 pounds
0.54 kilograms
model name
Radial Engineering
DI400P
Radial Engineering
Radial Engineering
surround channels
2
2

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Radial Pro DI Passive Direct Box


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What's in the box

  • Transformer
  • Product Description

    Noise-free and very affordable! The Radial ProDI Passive Direct Box is a high-quality, passive direct box that employs a proprietary transformer for both impedance conversion and isolation. Linear from 20Hz-18kHz, with low distortion and virtually zero phase distortion makes it perfect for live or studio performances. Because of the transformer isolation, problems such as hum and buzz caused by ground loops are eliminated, making it very easy and hassle-free to use. The Radial ProDI features 1/4" thru/input, -15dB pad, and ground lift protected from damage by a protective front panel. Heavy-duty construction, baked enamel finish, and 600-ohm balanced output. 2-1/2" x 4-1/4".

    Looking for specific info?

    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    416 global ratings

    Customers say

    Customers like the quality, sound quality, value, signal strength, and ease of use of the DI box. For example, they mention it's a real pro touring quality product, it improves the power and sound quality and is well worth the money. That said, they say it provides clean signals to their interface and blocks out fuzz and feedback.

    AI-generated from the text of customer reviews

    52 customers mention50 positive2 negative

    Customers are satisfied with the quality of the speakers. They mention that it's an excellent product, reliable, and a real pro touring quality. Customers also appreciate the solid construction and the brilliant DI that produces pure sound. Overall, customers are happy with their purchase and recommend it to others.

    "...These passive boxes are perhaps the most reliable component in all our sound equipment and I highly recommend to all musicians and venues, big or..." Read more

    "...I would not buy a different brand, they're worth the money. Silent, reliable, and bulletproof makes this the industry standard...." Read more

    "...Other wise I don't know anything about these. Product was solid construction. I used this with my Marshall dls 100h head, no effects pedals...." Read more

    "Arrived in perfect condition and worked great. No issues." Read more

    37 customers mention37 positive0 negative

    Customers are satisfied with the sound quality of the speakers. They mention that it has great sound, clear audio, and low noise. Some say that it improves the power and sound quality, and is the best DI box on the audio market. Overall, most recommend the product for a sharper tone and control.

    "Perfect for my guitars without preamps. Gives me terrific tone and control!" Read more

    "...These boxes are compact and simple, they sound great with no audible noise, and they're solid as a rock...." Read more

    "...I would not buy a different brand, they're worth the money. Silent, reliable, and bulletproof makes this the industry standard...." Read more

    "Haven’t met a Radial product I don’t like. Great sound and the metal case means our guitar players can’t break it." Read more

    16 customers mention16 positive0 negative

    Customers appreciate the value of the speakers. They say it's well worth the money, does what it'd be expected to do, and is a great purchase.

    "...I would not buy a different brand, they're worth the money. Silent, reliable, and bulletproof makes this the industry standard...." Read more

    "Worth it every penny" Read more

    "...I own and have used the Stagebug SB-2, and although it's a quality box for the money, the ProDI just has more detail on the low end and more air on..." Read more

    "...This solved the problem and at a fair price." Read more

    7 customers mention7 positive0 negative

    Customers are satisfied with the signal strength of the speakers. They say it provides a good clean signal with no hum, and provides clean signals to their interface. They also say it blocks out fuzz and feedback significantly. Overall, customers recommend the speakers for a sharper tone.

    "...It's always going to ensure a good clean signal with no hum." Read more

    "...outputs of solid state guitar amps with no issues and provide clean signals to my interface." Read more

    "...Using the ground lift eliminated the hum and buzzing and kept the guitar signal strong...." Read more

    "...No batteries - no worries! Just clean signal and playing freedom in a well-constructed, small package. Love it!" Read more

    6 customers mention6 positive0 negative

    Customers find the DI box easy to use. They mention it's simple and effective.

    "...These boxes are compact and simple, they sound great with no audible noise, and they're solid as a rock...." Read more

    "...Built like a tank, sounds clean, simple and effective.Please don’t buy cheap direct boxes. Just don’t do it. Buy this one...." Read more

    "Just possibly the easiest, most trouble-free DI box on the market. No batteries - no worries!..." Read more

    "...This unit produces a clean signal, is easy to use, and is just as rugged as everything else they make." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the cleanability of the speakers. They mention that it makes incredible stuff, has clean preamps, and is reliable for live use.

    "...This did the trick without doing anything extra. Everything is clean now." Read more

    "...exactly what it needs to do, and nothing more, at a great price: it cleanly and accurately represents the input given to it for live and studio..." Read more

    "Radial makes incredible stuff - clean preamps and bombproof boxes. This is real pro touring quality. Is box is no exception...." Read more

    "Super clean. If you're using DOD or ART or any other sub-$50 DI, you really don't know what you're missing...." Read more

    Must have for active EMG pickups
    5 Stars
    Must have for active EMG pickups
    So I know a lot of people struggle on the decision to purchase a DI box and should it be passive or active.I can share my experiences in this search for great guitar tone.I am going to list my equipment:Guitars:Ibanez RG8-EMG 808x (neck and bridge)Tuning: F, A#, D#, G#, C#, F#, A#, D# (9.5/74)ESP LTD MH-417-(EMG 85-7H: neck, EMG 81-7H: bridge)Tuning: G#, D#, G#, C#, F#, A#, D# (10/65)Audio interface:Focusrite Scarlett 2i4 (1st Gen)DAW and VSTs:Cubase 10.5 ProFortin Nameless suiteMercuriall U530Internal Cubase VSTsI decided to pick up the Radial ProDI passive DI box because I have active pickups in both of my guitars and my tone was muddy directly into the instrument input w/ padding turned all the way down. This DI box is a must have. My tone is night and day compared to the Focusrite instrument input w/ internal padding.I can't recommend this DI box enough.
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