QUESTION · AUDIO Q&A

Can we talk about the different radial DIs and not to forget the radial DIPZ that can impedance match to the source? There is the Pro models, the Jensen transformers, and all the various products that they have in their catalog.

ASKED BY · Ronnie Hofsoy · TROMSØ, NORWAY · 23 SEP 2026 · ▶ 00:36:47

THE PANEL'S ANSWER

Explains Radial is a Canadian company with extensive DI catalog. PZDI is active, phantom-powered, designed for low-output piezo pickups with impedance matching, pad, and high/low-pass filters. Pro DI is passive, single-channel, uses cheaper transformer. Jensen JDI passive version has better transformers for sound quality; active version available with phantom power. Notes Radial gear is durable and hard to overdrive due to large dynamic range.

Summarised by AI from what the panel said. Watch the moment for the full answer.

IN THEIR OWN WORDS

From the transcript.

Machine-transcribed, so it may contain errors. Every timestamp opens the episode at that second.

36:43Alexander, learn me. What's a radial DI? I don't know what that means. Well, radial is a very well-known company in the industry. Oh, it's a brand. They're a Canadian company. In fact, they're actually right down the street from where I live. I've been to their factory. They are the pretty much industry – You can tell it's in Canada because he said, I've been there to their factory.

37:03Well, they just happen to be in the same city. Okay, go ahead. Lucky. They're cool guys. But yeah, you're right, Ronnie. Their catalog is dizzying. They have a lot of SKUs, a lot of different little solution boxes to solve many, many problems that people have in the live sound and studio recording world. So I'll just mention a couple of them because they're product catalogs too large.

37:25Let's start with the one that you mentioned, the PZDI. So this is a really cool product. It's specifically designed for a lot of instruments that have really, really low output, particularly piezo pickups here. So, for example, like actually I had a customer a couple of weeks ago that had a violin, in and they got this little Fishman pickup that basically just clips to the saddle and you just

37:51has a, weirdly Fishman thought it would be great to ship that thing with a little dinky eighth inch unbalanced output. So, you know, you got to convert that to quarter inch, but then you need some kind of preamp or DI box because it makes virtually no signal. So the PZ is an active solution requires phantom power, but it goes beyond just converting an unbalanced

38:19instrument to a balanced XLR. It has other features. It has an impedance matching option here, so you can really optimize the pickup for the best possible sound by playing with the loading option for the impedance. It's got a pad, so for example, if for some reason you plugged something in that was too strong of a signal, you could pad that signal down so you don't overload it.

38:44And then, of course, it has both a high pass and a low pass filter, which is kind of unique that you don't really see in a lot of DI boxes. So for now, I know you might be saying, Ronnie, well, if I'm, you know, I don't need high pass and low pass filters because I'm a sound engineer and I'm going to just I'm going to make those adjustments in front of house anyways.

39:01100% agree with you however a lot of people that buy these boxes are people that are just one person operation and they're probably going to be grabbing one of these and playing in a scenario where maybe they don't have a front of house engineer they're gonna play in a bar or some small gig there's no engineer maybe they are their own engineer so it's cool to have these

39:24high-pass and low-pass filters to really dial in the sound that the the way that they want as well. So that's a particular solution for those low output pickups. And then of course they have the Pro-DI. So this is probably, this is a single channel DI box, entirely passive, no power required, and just takes that unbalanced input, converts it to a balanced plus four DBU output. This is their top selling DI box. It does not have the higher end Jensen

39:51transformers, although it sounds perfectly fine. It's built like a tank, like all radial products. It has a metal enclosure, very, very, very strong box. This has their cheaper, I forget what they call these ones, but they're a cheaper transformer, some kind of Chinese transformer in these ones. And then they have the Jensen JDI, which is one of the more popular ones. If you care about sound quality and you want the best possible sound, I'd recommend spending

40:17the extra, get the Jensen transformer version of this is the passive one. Then they also make a active version of this one, which I thought I had it called up here, but I guess I didn't. anyways there is an active version of that with a jensen transformer so if you have something that is low output needs a little bit more juice you can get the active one which is powered by 48 volts

40:37phantom power i'm just got to be careful about plugging in things that are already active that have high output like if i had an electric guitar with active emg pickup so typically something that has a battery or something that has a really high output you got to be careful because you can overload things. Although with jet, with, with radio stuff, and I've tested this, it's very

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