IGS Audio 573EQ - Classic Inductor 500 Series Equalizer
The IGS Audio 573EQ is a premium 500-series equalizer inspired by the legendary Neve 1073, delivering the iconic analog warmth, musical curves, and tonal magic of the classic design in a compact, modern format. Featuring Swiss-made ELMA stepped switches for all four bands, it offers precise, repeatable control with the signature fat low end, precise mids, and sweet, airy highs that define the 1073 sound. Balanced with transparent op-amps and inductor-based circuitry, the 573EQ provides exceptional clarity, depth, and richness for vocals, instruments, mix bus, and mastering — seamlessly integrating with transformer-balanced preamps and compressors.
Iconic 1073-Style EQ Curves
The 573EQ recreates the legendary Neve 1073 EQ character with a powerful low band that is fat, smooth, and fast, paired with a high-pass filter for tight, clear bottom end. The mids are precise and musical, perfect for corrective work or creative shaping — taming resonances, decluttering, or opening up the range. The high band delivers sweet, airy lift across a carefully chosen frequency range, adding high-definition clarity and polish to any source.
Key Features of the IGS Audio 573EQ
- Classic inductor-based equalizer inspired by the Neve 1073
- Swiss-made ELMA stepped switches for all four bands
- Fat, smooth low end with high-pass filter for tight, clear response
- Precise midrange for corrective and musical EQ
- Sweet, airy high band with well-considered frequency points
- Transparent op-amps for modern clarity and headroom
- Balanced design for seamless integration with transformer gear
- Hand-built with premium components
Technical Specifications
- Type: 500 Series inductor equalizer
- Input/Output: Balanced (500 Series edge connector)
- Max Input/Output Level: +24 dBu
- Frequency Response: 10 Hz–60 kHz (±0.5 dB)
- THD+N: <0.01% (typical, flat)
- Noise Floor:
- Power: 500 Series rack supply (±16 V)
- Current Draw: ~120 mA per rail
