Quagliardi ColorBox Active DI – All-Discrete Active DI Box

OVERVIEW

The ColorBox Active DI marks the next evolution in the Quagliardi ColorBox family, delivering uncompromising signal integrity in a fully discrete active direct box. Designed around classic 2520 op-amps and powered by a ±16 V split supply, it offers exceptional headroom, fast transient response, and ultra-low distortion for capturing instruments exactly as intended.

For added flexibility, the ColorBox Active DI includes a buffered unbalanced output and the new CREAM function – a musical colouration circuit that introduces subtle harmonic richness without sacrificing clarity. Whether you need pristine transparency or a touch of character, the ColorBox Active DI adapts seamlessly to modern studio and live workflows.

KEY HIGHLIGHTS

All-Discrete Signal Path
Fully discrete circuitry ensures maximum clarity, headroom, and sonic integrity.

Legendary 2520 Op-Amps
Renowned for punch, speed, and musical transparency.

±16 V Split Power Supply
Delivers exceptional headroom and ultra-low distortion performance.

CREAM Colouration Circuit
Adds smooth, musical harmonic character at the press of a button.

Buffered Unbalanced Output
Provides flexible signal routing without loading the source.

FEATURES

• Fully discrete active DI design
• Powered by ±16 V split supply
• Built around classic 2520 op-amps
• Ultra-low distortion (<0.01% THD)
• High headroom, fast transient response
• Switchable CREAM harmonic colouration
• Buffered unbalanced output
• Designed for studio and live applications

TECHNICAL SPECS

Circuit Design: Fully Discrete Active DI

Op-Amps: 2520 discrete op-amps

Power Supply: ±16 V split supply

Total Harmonic Distortion: <0.01% THD

Outputs: Balanced DI output, buffered unbalanced output

Colouration Circuit: CREAM harmonic enhancement

Intended Use: Studio and live instrument direct injection