• Authentic Pultec EQP-1A low-end modeling
Wave Digital Filter implementation of the legendary
passive tube EQ circuit with authentic inductor-capacitor networks

• Maag EQ4M-inspired mid/high bands
Musical frequency points (160Hz, 650Hz, 2.5kHz) plus
sweepable Air Band

• 12AX7 tube character modeling
Authentic modeling of the 12AX7 (ECC83) tube from the
original Pultec EQP-1A amplifier stage, including subtle harmonic coloration and tonal character

• The legendary "Pultec Trick"
Simultaneous boost and cut at low frequencies for enhanced
weight and clarity

• Interactive EQ bands
Analog-style frequency interaction and natural phase relationships

• Progressive gain compensation
Intelligent level management maintains consistent output
while preserving dynamic character

• Brickwall filter
Precision 24.5kHz lowpass prevents aliasing while preserving musical content

• Complete analog signal path modeling
From input transformers to output stages, every component authentically modeled

• Auto makeup gain
Intelligent automatic level compensation maintains consistent output levels while preserving musical character during EQ adjustments