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Radial Pro 48

I went throug the same analysis a couple weeks ago. I bought the JDI. Nice DI's for live no matter what. Yea thorough a PA no body will know the difference.

I think it is not a good approach to any kind of live production to take this attitude. I'm not trying to call anyone out here, I just think it is a bad idea to dismiss better sound quality (or tighter timing) because "nobody will be able to tell".
I assume most of you are familiar with "death by a thousand cuts". The same principle applies to sound fidelity. After a certain point it is difficult to make any drastic improvements in sound quality. Most of the improvements get only a mere 1db increase in signal to noise ratio. But if you add up half a dozen little things you get a significant net improvement.
Or to put it in musical terms. Think about that difficult position change you have to make in a certain song. Maybe you have to get from the 12th fret to second position, right on the downbeat. Sure it "works" if you miss it every now and then. So long as the band keeps chugging along. If you miss it every time the measure comes around the song sound tepid. If you nail it everytime the song sounds dynamic.
 
While I don't disagree with you. I also think as long as you are getting a good quality DI the difference between many of them especially in a live setting is not going to be that drastic until you get into Avalon, REDDI type DI's which have some tonal characteristics. That's my point.

I think it is not a good approach to any kind of live production to take this attitude. I'm not trying to call anyone out here, I just think it is a bad idea to dismiss better sound quality (or tighter timing) because "nobody will be able to tell".
I assume most of you are familiar with "death by a thousand cuts". The same principle applies to sound fidelity. After a certain point it is difficult to make any drastic improvements in sound quality. Most of the improvements get only a mere 1db increase in signal to noise ratio. But if you add up half a dozen little things you get a significant net improvement.
Or to put it in musical terms. Think about that difficult position change you have to make in a certain song. Maybe you have to get from the 12th fret to second position, right on the downbeat. Sure it "works" if you miss it every now and then. So long as the band keeps chugging along. If you miss it every time the measure comes around the song sound tepid. If you nail it everytime the song sounds dynamic.
 
While I don't disagree with you. I also think as long as you are getting a good quality DI the difference between many of them especially in a live setting is not going to be that drastic until you get into Avalon, REDDI type DI's which have some tonal characteristics. That's my point.

I wasn't trying to call you out personally. It was just that the majority of the comments seemed to boil down to "it only matters if you are in the studio". Which to some extent is true. But then again, live sound has been getting better and better in the last 10 years or so. Used to be you would have to load in a large van full of gear to accomplish what a few speakers that fit in a station wagon can now.
A properly gain staged, directivity controlled PA with good mics (and DI's) can get pretty close to studio quality sound.
In some cases even better than studio quality, since there wont be any beat quantising!
 
Well I used the pro 48 over the weekend and i'm very pleased with it. It was much better the the DI out of my amp thats for sure. Thanks for all the input guys. Maybe if I had known more about DI's before I purchased mine I would have gone for the J48 but the pro works very well I think.
Thanks again
 
Just clearing up something that seems to have been 'lost in the mix' here... the J48 does not employ a Jensen transformer. Only the JDI has that. The J48 has a switching buffer/amp system in the case that ramps the rail voltage up. It's an active DI versus the JDI (with the Jensen) which is passive.

Carry on...

I stand corrected. I believed the "J" in both J48 and JDI indicated the use of a Jensen transformer.