Naw, this ain’t a DI. It’s Radial’s NAMM-fresh Highline passive line isolator, which comes in mono ($179 street) and stereo ($249), and uses premium Jensen transformers to preserve your signal’s pure sound. The Highline takes 1/4" cable (with XLR outs) for connecting amp simulators or pedals to your amps or a DAW. It’s compact and pedalboard friendly, and the Mono version sums stereo sources down to mono. The Stereo can take four 1/4 ” inputs and deliver a stereo signal, but it can also sum stereo sources down to mono. And it fits snugly under a pedalboard.
Radial Engineering Highline & Highline Stereo | NAMM 2025
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By Ted DrozdowskiJan 25, 2025
Ted Drozdowski
Editorial director Ted Drozdowski is an award-winning journalist and music historian, and a musician, songwriter, producer, and film consultant. He’s a maniac for slide and psychedelic guitar, and has toured and taught workshops internationally. Ted is also the proprietor of Coyote Motel, his psych-roots band, who star in the film The River: A Songwriter’s Stories of the South. Connect with him at ted@premierguitar.com.