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iQ505

Sontec MEP-250A Style, 5-Band Fully Parametric

iQ505 is a five-band fully parametric equalizer inspired by the legendary Sontec MEP-250A, redesigned for the 500-series format. Featuring overlapping bands with ±12 dB boost or cut and an exceptionally wide frequency range extending from sub-bass to 24 kHz air, it delivers precise and transparent tonal control. Each band includes independent Q adjustment, allowing both broad shaping and surgical correction. With electronically balanced inputs and outputs powered by modern THAT circuitry, iQ505 offers ultra-clean performance, making it an ideal tool for corrective EQ, detailed sculpting, and high-precision studio work.
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Sontec-Inspired Precision in a Compact Format
iQ505 is a fully parametric five-band equalizer modeled after the revered Sontec MEP-250A, condensed into a single 500-series module. Its overlapping bands provide seamless coverage across the entire audible spectrum and beyond, from deep sub-bass to extended high-frequency air.

Total Control with Fully Adjustable Bands
Each band offers up to ±12 dB of boost or cut and features a dedicated Q control, enabling engineers to move effortlessly between broad tonal shaping and extremely narrow, corrective adjustments.

Ultra-Transparent Analog Performance
Designed for clarity above coloration, iQ505 is one of the cleanest equalizers in the IGS lineup. Electronically balanced inputs and outputs using modern THAT chips ensure low noise, high headroom, and exceptional transparency.

Built for Surgical Work and Subtle Enhancement
iQ505 excels at notching problematic frequencies, carving space in dense mixes, and making precise mastering adjustments. While neutral in character, it remains musical and responsive, making it equally effective for fixing issues or delicately sculpting sound.

Specifications

Boost / Cut Range ±12 dB
Current Consumption 100 mA
Hard Wire Bypass Yes
Q Factor 0.5 – 10
Noise Level −100 dB
Application Precise studio equalisation

Downloads

iQ505 Manual

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500 Series Atas Audio

500 Series

500 Series Chassis

500-Series Chassis

Dynamics Atas Audio

Dynamics

Equalizers Atas Audio

Equalizers

Monitor Controllers Atas Audio

Monitor Controllers

Noise Gates Atas Audio

Noise Gates

Preamplifiers Atas Audio

Preamplifiers

Signal Distribution Atas Audio

Signal Distribution

Studio Monitors Atas Audio

Studio Monitors

Channel Strips

Channel Strips

Saturation

Saturation

MPE Keyboards Atas Audio

MPE Keyboards

Mid Side Processing

Mid-Side Processing

Reverb Atas Audio

Analog Reverb

Drawmer

Telegrapher

Garbage Ideas

Z&H Designs

Mesanovic

IGS Audio

Expressive E

Looptrotter

HLabs