Manley Dual Mid Band EQ – Tube Mid Band Equalizer

The Manley Dual Mid Band EQ is a reference-grade device for precise shaping of midrange frequencies, combining classic passive topology based on choke coils with a tube signal path. Designed with engineers and producers in mind who demand natural, musical sound without compromising on quality. This tool allows you to bring out the character of instruments and vocals without artificial coloration.

Product Features

Choke-based passive equalization – natural, phase-coherent curves that integrate seamlessly with the source, preserving depth and transient behavior. Fully tube signal path – the 5751 input stage and 12BH7 output stage restore the level lost by passive filter networks, imparting three-dimensionality and harmonic structure to the signal. Manley custom-wound iron transformers at the input and output add density and authority that equalization curves alone cannot provide. No operational amplifiers, transistors, or semiconductors – nothing contaminates the character and focus of the sound. True two-channel stereo with matched channels, compatible with both Left/Right and Mid/Side modes.

Natural curves, musical results

Unlike active equalizers, the passive choke networks in the Dual Mid Band EQ create tonal changes that remain integrated with the source. Overlapping curves and the unique ability to simultaneously boost and cut levels ensure a wide range of musical timbre-shaping options. Large adjustments do not sound intrusive, while subtle changes can shift the mix perspective without drawing attention to the tool itself. The result is equalization that preserves depth, transient behavior, and musical continuity, rather than breaking the sound into fragments.

The Manley Dual Mid Band EQ stands out for its ability to deliver sharp, tight midrange boosts – ideal for bringing electric guitars, acoustic guitars, and vocals to the forefront. The Manley iron transformer adds density and depth that go beyond what the equalization curves alone can achieve. The unit is built for durability and reliability: hand-built in California, with top-tier components, satisfying mechanical controls, and a universal switching power supply designed to surpass traditional linear designs.

Precise stereo architecture with matched channels expands applications beyond tracking – the unit excels on instrument buses, mix buses, in mastering, and in Mid/Side workflows. The flat frequency response within ±0.1 dB from 20 Hz to 22 kHz, with a total range of 10 Hz–70 kHz, ensures transparency in every application.

Applications

• Mastering – precise midrange shaping on the main bus while preserving natural dynamics
• Mix-bus – adding presence and clarity without artificial coloration
• Tracking – bringing out the character of guitars, vocals, and acoustic instruments
• Stem processing – independent equalization of instrument groups while maintaining phase coherence
• Mid/Side workflows – independent equalization of mid and side components of the stereo signal
• Instrument buses – dense, saturated sound thanks to the tube signal path

Detailed Technical Specifications

• Equalization type: passive, choke-based – wide, natural, phase-coherent curves
• Signal path: fully tube, high voltage – 5751 input stage, 12BH7 output stage
• Transformers: Manley custom-wound iron at input and output
• Operation: true two-channel stereo – Left/Right or Mid/Side compatible (no internal matrix)
• Frequency response: flat within ±0.1 dB from 20 Hz–22 kHz
• Total frequency range: 10 Hz – 70 kHz
• Maximum output level: above +30 dBu
• Headroom: 26 dB referenced to +4 dBu
• THD / Noise: below 0.01%
• Signal-to-noise ratio: 89 dB
• Power supply: universal switching – compatible with all mains voltages worldwide
• Format: 2U rack – 3.5" × 19" × 7", weight 11 lbs
• Origin: hand-built in California, USA

Materials and Construction

The Manley Dual Mid Band EQ is hand-assembled in California using top-quality components. The choke coils and iron transformers are wound in-house, ensuring consistency and repeatability for every unit. Mechanical controls provide precise, satisfying operation, and the solid 2U rack enclosure protects the delicate passive components. The universal switching power supply was designed to surpass traditional linear power supplies – providing lower noise levels, greater headroom, and compatibility with every mains voltage worldwide, without the need for switching or modification.

It is worth noting that in passive filter networks, many controls share parts of the same electrical circuit. This means that changing one parameter can affect the loading conditions in another EQ section. Bandwidth, frequency selection, boost, and cut are not always independent variables – for example, narrowing the bandwidth can increase the apparent intensity of a boost. The resulting curves sound more natural and integrated than the sum of isolated EQ moves, encouraging adjustments by ear.

Package Contents

• Manley Dual Mid Band EQ – 2U mid band equalizer
• Power cord
• User documentation

Summary

The Manley Dual Mid Band EQ is a tool for those who treat midband equalization as an art form. It combines Manley's years of experience in building tube equipment with passive choke topology, creating a device that sounds so natural that the listener doesn't notice the intervention – they simply hear a better mix. If you are looking for a reference midrange equalizer with authentic tube character, iron transformer density, and California build quality, this unit was made specifically for you.