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BUZZ AUDIO

REQ-2.2 - Mastering

Stereo EQs

Equalizer, stereo mastering parametric, inductor-based, 4-band with HPF, ±8 dB boost/cut, Class A circuitry, saturation control

$9,100.00 CAD
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Description

The REQ-2.2 Mastering Equalizer is a high-end stereo parametric EQ designed for precision work where detail, depth, and musicality matter most. Built around inductor-based circuitry, it delivers the unmistakable openness and smoothness associated with classic choke EQ designs, while offering a level of control and flexibility that suits modern mastering workflows. Its sound remains clear and natural even with significant adjustments, making it ideal for refining mixes without compromising their integrity.

Each channel features four fully adjustable bands with a wide selection of frequency points and variable bandwidth, allowing for highly targeted shaping or broader tonal sculpting. The design uses parallel resonant circuits to achieve this flexibility while maintaining a clean signal path, resulting in a sound that feels both detailed and cohesive. Additional features like a high-pass filter and a selectable saturation stage provide further control, letting you subtly tighten the low end or introduce harmonic character when needed.

The REQ-2.2 is also designed with usability in mind, offering a clear layout and precise, stepped controls that make repeatable adjustments straightforward. With flexible connectivity options and the ability to link channels for stereo operation, it integrates easily into mastering environments. Combining refined analog tone with thoughtful control, it serves as a powerful tool for shaping final mixes with confidence and nuance.

Features

Inductor-Based Mastering EQ
Delivers rich, open sound using classic inductor circuitry for natural and musical tone shaping.

Adjustable Resonance Control
Offers flexible bandwidth control for precise EQ shaping without complex switching.

Four Fully Parametric Bands
Provides detailed control across the frequency spectrum to fine-tune any mix.

Wide Frequency Selection
Gives extensive frequency options so you can always target the exact range you need.

Class A Signal Path
Ensures high-quality audio with clarity, depth, and smooth performance.

Switchable Saturation Circuit
Adds subtle harmonic color and warmth when desired for enhanced character.

High Pass Filter Section
Helps clean up low-end rumble for a tighter and more controlled mix.

Stereo Link Functionality
Allows easy simultaneous control of both channels for consistent mastering adjustments.

Flexible Connectivity
Includes multiple input and output options for seamless integration into mastering setups.

Premium Build and Controls
Features large, tactile controls and a refined design for precise, comfortable operation.

Specifications

General Specifications
Device Type: Parametric equalizer
Configuration: Stereo mastering equalizer

Equalization
EQ Type: Inductor-based resonant circuit
Bands: 4 per channel
Frequency Selection: 12 positions per band
Total Frequency Choices: 72 per channel
Boost/Cut Range: ±8 dB
Step Resolution: 0.5 dB up to 3 dB, 1 dB to 8 dB
Bandwidth (Q): 1/3 octave to 2 octaves
High/Low Bands: Shelf or bell selectable

Filters & Processing
High Pass Filter: Yes
Saturation: Multi-stage transformer-based
Band Bypass: Per band IN/OUT
System Bypass: Global IN/OUT

Performance
Frequency Response: 5 Hz – 125 kHz (+0.2 / -3 dB)
Maximum Input Level: +25 dBu
Maximum Output Level: +32 dBu
Noise: -110 dB (A-weighted, all bands flat)
Input Impedance: ~20 kΩ
Output Impedance: ~70 Ω
Common Mode Rejection: -65 dB @ 100 Hz, -65 dB @ 1 kHz, -60 dB @ 10 kHz

Distortion
THD (Saturation Off): 0.007% @ 100 Hz, 0.004% @ 1 kHz, 0.007% @ 10 kHz
THD (Saturation On): up to 2.0% @ 20 Hz depending on setting

Connectivity
Inputs: XLR balanced
Outputs: Dual XLR balanced

Power
Power Supply: 115 V / 230 V selectable

Physical Specifications
Rack Size: 4U
Depth: 300 mm

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