Quagliardi 523 ParaShelving EQ – 500 Series Dual-Band Parametric EQ w/ Switchable Shelving

OVERVIEW

The Quagliardi 523 ParaShelving EQ marks the final piece of the Quagliardi channel strip, delivering a flexible and musical equaliser designed for both precision shaping and broad tonal enhancement. Built around two fully controllable bands, the 523 allows complete control over gain, frequency, and bandwidth, making it equally at home performing surgical adjustments or smooth, characterful boosts.

True to its name, each band can be seamlessly switched between parametric and shelving operation, enabling fast workflow changes without compromise. The inclusion of True Bypass ensures absolute signal integrity, while Quagliardi’s proprietary BLUE circuit introduces harmonically rich colouration, adding punch, weight, and musicality when desired. The result is an EQ that feels equally confident on tracking, mixing, and tone-driven creative applications.

KEY HIGHLIGHTS

Dual ParaShelving Bands

Two fully controllable EQ bands combine parametric precision with musical shelving curves.

Seamless Shelf Switching

Instantly switch each band between parametric and shelving modes for fast, intuitive tone shaping.

BLUE Harmonic Colouration

Engage Quagliardi’s proprietary BLUE circuit to add punch, depth, and character to your signal.

True Bypass

Maintains complete signal transparency when the EQ is disengaged.

Channel Strip Integration

Designed as the final EQ module to complete the Quagliardi channel strip ecosystem.

FEATURES

• Two fully controllable EQ bands

• Gain, frequency, and bandwidth control on each band

• Parametric and shelving operation per band

• Proprietary BLUE harmonic colouration circuit

• True Bypass for uncompromised signal integrity

• Designed for tracking, mixing, and tone shaping

• Seamless integration within the Quagliardi channel strip

TECHNICAL SPECS

EQ Topology: Dual-band ParaShelving equaliser

Bands: 2

Controls per Band: Gain, Frequency, Bandwidth

Modes: Parametric or Shelving (switchable per band)

Colouration Circuit: BLUE harmonic enhancement

Bypass: True Bypass

Application: Channel strip EQ, tracking, mixing, tonal shaping