Heritage Audio has expanded its lineup with two new DI box series, delivering a total of four models that offer a clear choice between warm analog color and pristine signal transparency. The new 73 DI Series and P DI Series each include single- and dual-channel versions, designed for professionals who need reliable, great-sounding DI options in both studio and live environments.
73 DI Series: Vintage Tone with Modern Flexibility
The 73 DI ONE and 73 DI 2 are active DI boxes inspired by Heritage Audio’s iconic 73-style preamps. These models bring the unmistakable saturation and musical character of a three-transistor Class A circuit into a portable, rugged format.
Thanks to their high 2.2 MΩ input impedance and the inclusion of a custom-designed transformer, these DI boxes excel with passive basses, electric guitars, and electric pianos, but also handle keyboards, synths, and drum machines with ease. The result is a rich, harmonically enhanced tone that adds life to any instrument. With robust aluminum housing and recessed connections, they’re built for both the studio rack and the road.
P DI Series: Pure Tone, No Compromise
The P DI ONE and P DI 2 are passive DI boxes focused on delivering clean, transparent sound. They use a custom-designed HA-DI transformer built with a nickel core and MU metal shielding to preserve clarity while rejecting noise and interference.
These passive models don’t require power and are especially effective at removing buzz and hum from ground loops. They’re a great fit for acoustic instruments, keyboards, or any setup where you want your original tone to shine through without added color. Drawing on Heritage Audio’s experience with passive circuit design, these boxes offer solid, no-frills performance for both studio and stage setups.
With the release of these two DI box series, Heritage Audio gives engineers and musicians flexible options to suit different sonic goals, whether you’re chasing vintage warmth or clean accuracy, there’s now a purpose-built DI to match