



Heritage Audio is proud to introduce the 73 DI ONE, custom-made transformer-equipped 73-Infused active single channel D.I. box for exceptional professional studio recording, as well as live use.
Single channel active DI box.
Class A, JFET discrete input stage as seen on all Heritage Audio top of the line products.
Low impedance custom Heritage Audio designed 73-DI output transformers.
Outstanding signal integrity and superior noise rejection.
Rugged 14-gauge steel enclosure prevents PCB stress and potential component failure.
MIL-spec circuit board with full ground plane for ultra-quiet operation.
Durable metal switches rated for over 25,000 cycles.
15dB pad.
Ground lift switch.
Input / Thru gold-plated jacks.
Gold-plated XLR output.
Operated by standard +48V phantom power with red LED indicator light.
It’s no secret that we are lovers of the 73 topology since the very beginning of Heritage Audio, especially the 3055-driven transformer coupled Class A output stage which is the trademark of that sound. After years of consideration, we’ve managed to adopt the legendary 3-transistor topology circuit to serve as the best DI you could ever get, at any price range.