Some equalizers change frequency response. The best equalizers change the way a record feels.
The Dual Mid Band EQ was built around that distinction. It combines passive inductor-based EQ networks, high-voltage tube gain stages, and custom Manley Iron transformers into dual-channel processors capable of shaping far more than tonal balance alone.
The Dual Mid Band EQ focuses on intelligibility, separation, and focus. FEATURES

The Curve Is Only Part of the Sound
The Dual Series combines passive filtering, tube makeup gain, custom transformers, and high-headroom analog operation into a complete signal path. The interaction of the filters, boost, and cut overlaps result in highly musical curves — but the components behind the scenes are why these equalizers sound substantial, dimensional, and composed in ways beyond their frequency behavior alone.
Passive Inductor-Based Equalization
The Dual Series uses passive inductor-based networks rather than active gain stages inside the EQ circuit. This approach is less convenient and more expensive to execute well, but it remains one of the reasons passive equalizers continue to be valued by serious engineers. The curves are broad, natural, and interactive — encouraging decisions based on musical relationships rather than isolated frequency problems.
Natural Curves and Phase-Coherent Behavior
The passive networks create tonal changes that remain integrated into the source. Large moves do not automatically sound heavy-handed, and small moves can change the perspective of a mix without calling attention to the tool. The result is equalization that tends to preserve depth, transient behavior, and musical continuity.
Manley Tube Makeup Gain
Passive EQ networks lose level by design. Restoring that level is central to their sound. The Dual Series uses Manley tube makeup gain stages that benefit from decades of experience building high-end tube equipment. The 5751 input stage and 12BH7 output contribute the dimensionality, harmonic structure, and authority that define the Manley sound.
Manley Iron
The in-house wound Manley transformers are central to the way these equalizers present low-frequency weight, transient density, and sonic authority. Custom input and output transformers, scrupulously developed and hand-selected for maximum euphonic performance.
Mastering-Capable, Not Mastering-Only
The Dual Series was designed for recording, mixing, and mastering workflows. Its performance is thorough enough for mastering applications but equally useful on individual sources, stems, instrument buses, and mix buses.
Extended Bandwidth and Serious Headroom
Output capability exceeding +30 dBu, 26 dB of output headroom referenced to +4 dBu, and frequency response flat within ±0.1 dB from 20 Hz to 22 kHz. Total response extends from 10 Hz to 70 kHz. Built for modern professional operating levels and the most demanding analog chains.
Mid/Side Ready
Front-panel labeling supports both Left/Right stereo operation and Mid/Side processing. No internal matrix is included — the unit integrates with external M/S encoders and decoders, hardware (such as the Manley Mastering Backbone) or DAW-based, allowing independent equalization of the Mid and Side components of a stereo signal.
Modern Manley Design
Updated ergonomics, clearer layouts, and new logos to match. The Dual Series is the first Manley product line to feature the updated brand identity — refined for contemporary professional environments without compromising the circuits that made these designs truly exceptional.
Built to Last
Serious mechanical construction, carefully chosen components, satisfying control feel, and a universal switchmode power supply that outperforms the best linear designs available — compatible with all mains voltages worldwide and contributing to the unit's extended headroom and low noise floor. Every Dual Series equalizer is handbuilt in California.

Dual Main EQ 
The Manley Dual Main EQ delivers authoritative low-end weight, open and musical highs, and dimensional depth — with perfectly matched stereo operation. A passive inductor-based EQ with high-voltage tube makeup gain and custom Manley Iron transformers, built for mix-bus work, mastering chains, and high-end tracking. Handcrafted in California.

Dual Mid Band EQ 
The Manley Dual Mid Band EQ provides mastering-grade midrange control with smooth, musical precision — shaping presence, clarity, and punch without harshness. A passive inductor-based EQ with high-voltage tube makeup gain and custom Manley Iron transformers, built for mix-bus work, mastering chains, and high-end tracking. Handcrafted in California.
Full Description — Both Models
The Manley Dual Main EQ and Dual Mid Band EQ are Manley's 2026 flagship equalizers — modernized, true-stereo evolutions of two of the most respected passive EQ designs in professional audio. Built for mix-bus work, mastering chains, and high-end tracking. Individually exceptional, together unmatched.
Each unit combines a passive inductor-based EQ network, high-voltage tube makeup gain, and custom in-house wound Manley Iron transformers into a dual-channel signal path designed to do more than adjust tone. The result is equalization that shapes weight, dimension, depth, and musical cohesion — not just frequency balance.
The Dual Main EQ delivers authoritative low-end weight, open and musical highs, and dimensional depth. The Dual Mid Band EQ provides mastering-grade midrange control with smooth, musical precision — shaping presence, clarity, and punch without harshness. Together they form a complete master-bus EQ system; each equally capable as a standalone processor on sources, stems, buses, and mastering chains.
Updated ergonomics, L/R and M/S labeling, and the new Manley logo. Universal switchmode power supply — compatible with all mains voltages, contributing to the unit's extended headroom and low noise floor. Handbuilt in California.

Feature Highlights
Passive inductor-based equalization — broad, natural, phase-coherent curves
High-voltage all-tube signal path — 5751 input stage, 12BH7 output stage
Custom in-house wound Manley Iron transformers on input and output
True stereo dual-channel operation — Left/Right or Mid/Side compatible (no internal matrix included)
Frequency response: flat within ±0.1 dB from 20 Hz–22 kHz · Total response: 10 Hz–70 kHz
Output exceeding +30 dBu · 26 dB headroom referenced to +4 dBu
THD / Noise: <0.01%
Designed for mix-bus, mastering, tracking, and stem processing