I'd go for the Radial JDI, as well. Besides rapidly displacing the the Countyman Type 85 as nearly the most popular DI for bass (and acoustic guitar, if anyone here cares...

), it's built around the good Jensen transformer and the DI is built like a tank and doesn't require phantom power.
Although many people use the cheaper DIs sucessfully (assuming it's a passive DI), they are prone to transformer saturation and overload by active and/or higher-output basses.
I always argued against the use of the bass head's balanced output because, for one, I'd rather hear the bass at the console input with as few electronics as possible in the path. The bass head is one or more gain stages before it hits the console. And then I hear "But I'm getting MY sound from MY bass rig" Yes, your bass rig that usually aimed at the back of your knees, unless it's an 810 cabinet or your smart enough to lean the speaker back or elevate it somewhat. But as I got older, my thoughts bcame "hey, if that's what you want to send the PA guy, I'll be damned if I'm going to argue about it". I own a Radial DI, but I'll tell the PA guy "Take yer pick".
(EDIT: Please understand, I hadn't seen Humbled's post recommending the Countryman Type 85 and the Radial JDI when I commented about the JDI's popularity, so I don't mean to dispute his recommendation at all, as it appears I did earlier on another thread. The Type 85 is a great DI. But I'm about eliminating phantom power from anything that doesn't have to absolutely have it. Hence, my preference for the JDI)
Good luck,
Geri O