Pultec EQP-1S3-SS Solid State Program Equalizer

The Pultec EQP-1S3 is a rare and powerful variant of the legendary EQP-1A, offering the same warm, musical tone shaping with an expanded range of frequency options. Hand-built to original specifications, the EQP-1S3 combines a passive EQ circuit with a tube makeup amplifier, delivering the rich harmonic character and smooth curves that have made Pultec equalizers studio legends for over 70 years.

With intuitive controls and versatile frequency selections, the EQP-1S3 provides unmatched tonal flexibility:

• Low-Frequency Boost/Attenuate (20–100 Hz): Create deep, punchy bass with the classic “Pultec low-end trick.”

• High-Frequency Boost (1.5–16 kHz, with adjustable bandwidth): Add presence, clarity, and airy sheen to vocals, guitars, and mixes.

• High-Frequency Attenuate (5, 10, 20 kHz): Smooth out harshness while maintaining natural brilliance.

The extended midrange and high-boost options (1.5–5 kHz) make the EQP-1S3 especially effective for vocals, snares, guitars, and mastering, where precise presence control is essential.

Whether used for subtle sweetening or bold tonal shaping, the Pultec EQP-1S3 delivers timeless analog warmth and clarity, making it one of the most versatile and desirable EQs in the Pultec family.