PSP MasterQ2

PSP Audioware's MasterQ2 distinguishes itself in the mastering EQ category by functioning as a genuine creative tool rather than a purely corrective device. The plugin's architecture reflects serious attention to computational precision, employing 80-bit extended floating point processing across all filter stages to eliminate accumulation errors and maintain headroom even with extreme gain and Q settings at subsonic frequencies.

The filter complement spans seven distinct types: steep low and high cut filters at 12, 24, and 36 dB/octave slopes; switchable shelf and peaking filters for the low and high ends; and three parametric mid-range sections covering low-mid, middle, and high-mid ranges. Each offers wide frequency and Q adjustment ranges, with the real-time EQ graph providing transparent visual feedback of the resulting curve and individual filter characteristics.

What sets MasterQ2 apart technically is its proprietary Frequency Authentication Technique algorithm, a double sampling approach designed specifically to preserve filter integrity at ultrasonic frequencies without introducing sample rate conversion artifacts or phase distortion. This proves particularly valuable when operating at native sample rates above 192kHz, where conventional EQ designs often falter.

The inclusion of limiting and soft-clipping algorithms extends the plugin's utility beyond equalization, offering integrated loudness management and harmonic character shaping. Whether deployed for surgical mastering work or as a color processor during mixing, MasterQ2 handles both applications with equal competence. Its combination of technical rigor and practical versatility makes it a solid choice for engineers seeking precision without sacrificing sonic personality across sampling rates from 44.1kHz to 768kHz.