Psi S2 Firmware Download May 2026

The other, more plausible theory? The "S2" refers to a specific for a broader PSI product line—perhaps the firmware version 2.0 for their AVAA active bass trap or a legacy controller.

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In our investigation, the term most reliably points to , the revered Swiss manufacturer of studio monitors. Their flagship A-series and A21-M models are legends in mastering suites. However, PSI does not currently list an "S2" model. Enthusiasts speculate the term is a colloquial mashup—confusing the old KRK Rokit S2 with PSI’s DSP tuning software. psi s2 firmware download