Radial Engineering J 48
Active DI Box

Latest User Reviews
DI BOX
build like a tank ! the best in the market !
Awesome
Really really good. It buffers the guitar signal so I'd say you get a cleaner result than going in direct into an amp. 0 noise whatsoever and if you have a good preamp to run it into it sounds really killer.
Great utility for home studio recording and live performance
Many consider a DI box to get a good DI in recording or during live performance. Others want the ability reduce noise by shifting to balanced XLRs on the way into a mixer or flipping polarity to reduce feedback problems. This unit can deliver all that. But, there is more that you can do with this small box. For example, if you are recording bass or hot electric guitars (incl. passive ones) and have had troubles with clipping -- or have to set your input fader so low that it loses all its sensitivity -- consider buying this box. The low cut filter and the 15dB pad options can alone help you obtain better gain staging. What makes this stand out from others? Well, Phantom powering, versatility (thx to its lower input impedance), rigid protection, and noiseless operation, to name a few.
Best DI box
I spent weeks researching the best DI box to buy and out of all the various reviews, demos and various top 10 lists, this DI came up trumps every time. Yes you can get cheaper DI boxes but nothing compares to the form, functionality and sound quality of this box, and when professional engineers say they're still using the same box 20 years on, you know its a worthwhile investment. Buy once; buy right; buy this box.
The DI is loud, clear and high fidelity. I'm currently using it to record guitars for our first album while having the facility to reamp them at a later date should we need to. You can send the signal through to the amp and also take a DI incase it's not exactly the sound you're after which stands to save us thousands of pounds so we're not using the studio to get the perfect take, instead we can use the studio to tweaking the tone on takes we already have. After lockdown, when we can get back in to rehearsal I'll also be using it live to sum stereo synth outputs to one xlr for live too
Buy it once, use it for life.
Superior build quality, nice set of useful features and a great sound. Perfect for professional studio applications but also for getting the best sound out of your guitar or bass when using virtual amp plugins. Excellent product.
Great DI
Tried with my Epi Custom Pro. Sounds good in a recording! Recommend to use in your home studio!
Must have
Good and clear sounding dibox!
good, but coloured
I?ve been looking for a new DI for tracking bass and guitar. After some hefty research, I narrowed my options down to the following:
- BSS AR133 (EUR 105,-)
- Radial J48 EUR (235,-)
- Neve RNDI (EUR 299,-)
I plugged my Ibanez SR650 into each of these DI?s, into my Focusrite 44. I tracked some parts in both active and passive setting. My findings:
BSS AR133: It doesn?t look very slick. With its huge rubber sides, it does look indestructable. The sound is clear and transparent, with very low noise.
Radial J48: It looks good, and also definitely feels sturdy enough. The sound is noticably warmer than the BSS, more analogue sounding. It sounds great, but definitely coloured.
Neve RNDI: Looks wise, this is clearly the winner of the three. Like the BSS, it sounds very clear, even, and moderate in the lows.
The BSS and the Neve sound the most natural and clear, which is what I am looking for in a DI. I want the cleanest sound possible to feed to a pre-amp. However, the sound difference between these two is very small to my ears. So small, that it doesn?t warrant the price difference.
Hence, my choice is the BSS AR133. It sounds great, is super sturdy, and very affordable. Recommended!
Amazing
This is awesome, I've used for my bass after testing several DIs, and I can tell the difference it makes.
The low frequencies are very clear with this DI, and the output is very reliable. It works well with acoustic guitars too!
Every sound engineers that I've worked with are very happy with the sound of it.
Great piece of gear
The price was out of my league but I bit the bullet and have not regretted it. Built like a tank and does exactly what it says on the tin. Recommended
Technical Data
- Manufactured by Radial Engineering
- Released in 2006
- Average price : $274
- Connectors: Jack in/thru, XLR out
- Merge function
- - 15 dB pad
- Low cut
- Phase reverse
- Ground/Lift
- Operates with 48V phantom power
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