PMT Audio
Manley Labs Dual Main EQ

Manley Labs

Dual Main EQ

Equalizer

From Manley Labs:

Passive inductor networks designed to create tonal changes that remain integrated to the source. Overlapping curves and the unique ability to cut AND boost allows musical and wide ranging tone shaping options. 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 preserves depth, transient behavior, and musical continuity rather than pulling the sound apart.

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 and experimentation building high-end tube equipment for the most discerning ears. It’s core to the dimensionality, harmonic structure, and authority of the sound.

True dual-channel design with matched channels expands use beyond just tracking tasks and creates a perfect match for instrument buses, mix buses, mastering, and Mid/Side workflows.

Specs

Equalization
Passive inductor-based equalization — broad, natural, phase-coherent curves
Signal path
High-voltage all-tube signal path — 5751 input stage, 12BH7 output stage
Transformers
Custom in-house wound Manley Iron transformers on input and output
Channels
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
Output exceeding +30 dBu - 26 dB headroom referenced to +4 dBu
Max output
+30 dBu
Signal to noise ratio
96 dB
Power supply
Universal switchmode power supply — compatible with all mains voltages, contributes to extended headroom and low noise floor
Size and weight
2U rackmount — 3.5" × 19" × 7" · 11 lbs
Made in
Handcrafted in California, USA

Source: Manley Dual Main EQ product page