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KORG enters the USB audio interface market with microAUDIO 22 and flagship microAUDIO 722, unveiled at NAMM 2025 and released January 24.
Both interfaces support 24-bit/192kHz audio, 2-in/2-out operation with loopback, effectively handling up to 4-in/4-out routing via USB-C.
microAUDIO 722 uniquely integrates an analog filter recreating the legendary miniKORG 700S, offering cutoff, resonance, LFO, envelope follower, and MIDI-sync control.
KORG’s late arrival to the USB interface arena reads less like hesitation and more like a deliberate reframing of what an interface can be. Where competing Japanese brands historically emphasized neutral conversion and driver maturity, microAUDIO—especially the 722—leans into signal-shaping as part of the front end. The analog filter is not a cosmetic nod to heritage but a fully inline circuit that can sit either before A/D or post-USB return, a routing choice that quietly changes its role from “instrument effect” to a hybrid mastering insert. Sources differ on whether this blurs the category boundary, yet that ambiguity is arguably the point: the box behaves as a small-format analog processor that just happens to speak USB, rather than a sterile I/O hub with optional color.
Technically, the interesting conversation isn’t raw conversion—measurements indicate clean, linear behavior when the analog section is bypassed—but how KORG has insulated that fidelity from the additional circuitry. Concerns raised by some observers about noise ingress from the filter stage appear largely unfounded, suggesting careful grounding and gain staging rather than the brute-force shielding often seen in boutique designs. The editor software further complicates the picture in a good way: hidden parameters like LFO waveform selection and rate scaling imply a deeper modulation engine than the panel suggests, yet the control path remains decoupled from the audio path, preserving determinism. Compared with more conventional desktop interfaces, microAUDIO trades absolute simplicity for architectural flexibility, appealing less to those chasing textbook transparency and more to listeners who value controlled harmonic intervention without leaving the hardware domain.
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