Transformer DI
Passive transformer DI with Ni-Fe core, <0.015% THD, >500V isolation, and ground lift with RF rejection.
The Transformer DI is a passive direct box built around a proprietary balanced transformer with an ultra-high permeability Ni-Fe (nickel-iron) core. It converts between balanced and unbalanced signals with 1:1 transparency, achieving frequency response of 20Hz to 20kHz within -0.5dB and total harmonic distortion under 0.015% from 70Hz to 80kHz. These specs put it in audiophile territory.
The transformer provides >500V electrical isolation between secondary and primary windings, protecting your gear from ground loops and voltage spikes. Insertion loss is under 1.0dB, and it handles input levels up to +22.2dBu without distortion. Ground lift with RF rejection circuitry eliminates hum and radio interference that plague cheaper DI boxes.
As a passive unit, it requires no power supply—the transformer does all the work. This makes it bulletproof reliable for live and studio use. The premium Ni-Fe core and tight tolerance specs deliver clean signal conversion that cheap transformers can't match. It's the kind of DI you buy once and use for decades.
Reverb
Amazon
