M-LEY Passiv Stereo Tube EQ
Musical curves. Tube depth. Mastering-grade elegance.
The M-LEY Passiv is not about surgical correction — it’s about enhancing a mix through broad musical curves, natural tonal balance, and the unmistakable depth of a passive tube equalizer.
Its passive EQ architecture and tube amplification stage work together to add weight, openness, dimension, and refinement while preserving the musicality and integrity of the source.
Now updated with independently captured Left and Right channel profiles for authentic True Stereo operation using TSC Rack’s L/R Split mode.
Experience These Profiles with TSC Rack
To get the most out of these profiles, we recommend using TSC Rack — our original plugin designed specifically for Tokyo Studio Capture profiles.
TSC Rack fully supports the latest NAM A2 architecture, delivering the highest level of accuracy currently available, while also providing seamless True Stereo operation through independent Left and Right profile loading.
With its integrated profile browser, four processing slots, Auto Phase Calibration, Native Sample Rate Processing, and automatic profile management, TSC Rack makes working with NAM faster, simpler, and more enjoyable than ever.
New to NAM?
If you’re just getting started with Neural Amp Modeler, our step-by-step NAM Guide covers everything you need—from installing the plugin to loading your first profile.
What’s Included
A collection of M-LEY Passiv profiles captured across a variety of musical EQ curves and tonal enhancement settings.
Profiles included:
- M-LEY Passiv – Gentle Weight (CH1 / CH2)
Subtle low-end enhancement with natural warmth and depth.
Character: Warm & balanced - M-LEY Passiv – Analog Foundation (CH1 / CH2)
Enhanced body and stability with classic passive EQ smoothness.
Character: Full & musical - M-LEY Passiv – Mid Presence (CH1 / CH2)
Focused midrange clarity with enhanced definition.
Character: Present & articulate - M-LEY Passiv – Vocal Air (CH1 / CH2)
Open top-end with silky high-frequency extension.
Character: Airy & refined - M-LEY Passiv – Warm Midrange (CH1 / CH2)
Rich harmonic mids with vintage-inspired musicality.
Character: Warm & intimate - M-LEY Passiv – Tube Polish (CH1 / CH2)
Smooth overall enhancement with elegant tube character.
Character: Smooth & polished - M-LEY Passiv – Mix Glue EQ (CH1 / CH2)
Balanced tonal shaping for cohesive mixes.
Character: Cohesive & natural - M-LEY Passiv – Mastering Balance (CH1 / CH2)
Subtle broad-band correction with mastering finesse.
Character: Balanced & open - M-LEY Passiv – Low Authority (CH1 / CH2)
Enhanced low-frequency solidity and weight.
Character: Deep & powerful - M-LEY Passiv – Presence Lift (CH1 / CH2)
Forward detail with enhanced clarity and focus.
Character: Clear & focused - M-LEY Passiv – Hi-Fi Shine (CH1 / CH2)
Extended top-end brilliance with modern clarity.
Character: Bright & open - M-LEY Passiv – Vintage Curve (CH1 / CH2)
Classic passive EQ contour with rich musical coloration.
Character: Vintage & smooth - M-LEY Passiv – Wide Smile (CH1 / CH2)
Enhanced lows and highs with a balanced midrange contour.
Character: Exciting & musical - M-LEY Passiv – Tube Dimension (CH1 / CH2)
Added depth and dimensionality through musical EQ shaping.
Character: Deep & spacious - M-LEY Passiv – Air & Weight (CH1 / CH2)
Simultaneous enhancement of low-end power and high-end openness.
Character: Large & finished - M-LEY Passiv – Passive Finish (CH1 / CH2)
Final polish inspired by high-end mastering chains.
Character: Finished & premium
True Stereo Operation
The original hardware features independently operating channels, each with its own unique analog behavior and subtle sonic characteristics.
To preserve this authenticity, every profile pair was captured independently from each channel of the original hardware.
Unlike conventional stereo processing, the Left and Right channels are not duplicated. Each profile retains its own unique analog fingerprint, closely reflecting the behavior of the original unit.
For the intended experience, load the matching CH1 and CH2 profiles using TSC Rack’s L/R Split mode. This preserves the natural depth, width, and dimensionality of the original hardware.
Sound Characteristics
- Broad passive EQ curves create natural tonal balance
- Tube circuitry adds depth, smoothness, and dimensionality
- High frequencies remain open without sounding harsh
- Low-end enhancements retain clarity and definition
- Ideal for mix buss, mastering, vocals, instruments, and final polish
Audio Demo
Compare the original hardware signal and the NAM profile across a range of sources — full mixes, vocals, acoustic instruments, drums, and more.
Each example demonstrates how closely the profile captures the tonal character, tube harmonics, and musical EQ response of the hardware.
The NAM and hardware samples are gain-matched to allow for a more accurate evaluation of the capture’s fidelity.
For additional context, a dry (unprocessed) version is also included.
Why this capture is different
- Multiple musical EQ curves captured for different tonal goals
- Passive EQ and tube-stage interaction preserved
- Consistent calibration across all profiles
- Designed for mix buss, mastering, and premium tonal enhancement
Waveform Comparison (Hardware vs NAM)
Below is a direct comparison between the original hardware signal and the NAM profile output.
This visualization highlights how accurately the tone, harmonics, and EQ response are preserved.
Technical notes
- Format: NAM (.nam)
- Sample Rate: 48kHz
- Capture Type: Real hardware
- Calibration: Studio-level gain staging
Gain Staging Advice
Our captures are pre-calibrated at -18 dBFS input level.
For best results, we recommend feeding the plugin with an input signal close to -18 dBFS.
Because many profiles combine EQ shaping and tube harmonic enhancement, some settings may appear louder or more open during evaluation.
Please level-match carefully when comparing profiles to better judge tonal differences rather than perceived loudness.
Disclaimer
This product consists of digital NAM profiles and impulse responses captured from real hardware.
All products are independently developed by TSC (Tokyo Studio Capture) and are not affiliated with, endorsed by, or officially connected to any hardware or software manufacturers.
Any product names, references, or visual elements are used strictly for descriptive purposes only. All trademarks and brand names are the property of their respective owners.
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