S-TEC 432 Mastering Equalizer
Precise shaping. Musical balance. Mastering-grade clarity.
The S-TEC 432 is not about drastic EQ moves — it’s about subtle adjustments that define the final sound.
With its smooth curves and transparent response, it allows you to enhance clarity, control low-end, and bring out detail without compromising the integrity of the mix.
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, 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, built-in Mix control, mastering-grade oversampling, 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 mastering EQ profiles captured across carefully tuned frequency adjustments.
Profiles included:
- S-TEC 432 – Master Balance (CH1 / CH2)
Subtle tonal refinement with exceptional transparency. - S-TEC 432 – Low Foundation (CH1 / CH2)
Enhanced low-frequency solidity with mastering precision. - S-TEC 432 – Presence Focus (CH1 / CH2)
Focused articulation and enhanced detail. - S-TEC 432 – Air Extension (CH1 / CH2)
Open high-frequency enhancement with effortless clarity. - S-TEC 432 – Mid Clarity (CH1 / CH2)
Enhanced midrange definition with natural transparency. - S-TEC 432 – Broad Polish (CH1 / CH2)
Wide-band mastering enhancement with elegant balance. - S-TEC 432 – Mix Finish (CH1 / CH2)
Final tonal shaping designed for complete mixes. - S-TEC 432 – Low Weight (CH1 / CH2)
Added depth and authority without sacrificing clarity. - S-TEC 432 – Vocal Presence (CH1 / CH2)
Forward detail with refined upper-mid articulation. - S-TEC 432 – Hi-Fi Shine (CH1 / CH2)
Extended brilliance with pristine top-end detail. - S-TEC 432 – Wide Smile (CH1 / CH2)
Enhanced lows and highs with balanced musical contour. - S-TEC 432 – Precision Curve (CH1 / CH2)
Focused tonal shaping with mastering-grade accuracy. - S-TEC 432 – Air & Focus (CH1 / CH2)
Enhanced openness paired with detailed midrange clarity. - S-TEC 432 – Mastering Finish (CH1 / CH2)
Final polish inspired by world-class mastering chains.
Character: Balanced & natural
Character: Deep & controlled
Character: Clear & present
Character: Open & airy
Character: Detailed & focused
Character: Smooth & refined
Character: Finished & cohesive
Character: Powerful & controlled
Character: Present & articulate
Character: Bright & polished
Character: Exciting & musical
Character: Precise & transparent
Character: Open & focused
Character: Premium & complete
Sound Characteristics
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.
How it behaves
- EQ moves remain smooth and musical
- Frequency balance is enhanced without harshness
- Subtle adjustments result in significant perceived improvement
Audio Demo
Compare the original hardware signal and the NAM profile across a range of sources — bass, guitar, synth, and more.
Each example demonstrates how closely the profile captures the tone, dynamics, and harmonic 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
- Carefully tuned mastering EQ curves
- Consistent calibration across all profiles
- Designed for subtle but effective tonal shaping
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 tonal balance and frequency 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.
Due to gain reduction during the profiling process, the output level of a loaded profile may be slightly lower than the original input signal.
Please adjust the Output control to match your source level or to reach your preferred listening volume.
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.
Leave a Review
If you found this profile useful, we’d really appreciate your feedback.
Leave a review and receive a discount coupon for your next purchase.
Follow Tokyo Studio Capture
Follow us on Instagram for studio updates, behind-the-scenes content, new releases, and more.






Jordan (verified owner) –
It’s all about the texture. This isn’t an EQ for ‘fixing’ problems; it’s for enhancing the source with a very natural, expensive-sounding air. The top-end feels incredibly silky, and the low-end tightening feels organic rather than processed. I’ve found it indispensable on the mix bus for that final 5% of polish. If you need surgical cuts, look elsewhere—but for adding ‘expensive’ weight and clarity, this is top-tier.
Anonymous (verified owner) –
This EQ exhibits a smooth quality you can only get with the real hardware. I have an emulation (VST) but I feel these profile preset are better. Cool!