S-PL PIQ Mastering Equalizer
Precision shaping. Musical balance. Mastering-grade clarity.
The S-PL PIQ is not about drastic EQ moves — it’s about subtle tonal refinement that defines the final sound.
With its transparent response, broad musical curves, and mastering-focused precision, it enhances clarity, controls low-end energy, and adds polish 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 — 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 S-PL PIQ mastering EQ profiles captured across a wide range of tonal shaping approaches.
Profiles included:
- S-PL PIQ – Master Air (CH1 / CH2)
Open top-end enhancement with refined mastering clarity.
EQ Focus: Air band enhancement / Character: Open & polished - S-PL PIQ – Low Tighten (CH1 / CH2)
Controlled low-end shaping with improved focus and definition.
EQ Focus: Low-end tightening / Character: Tight & clean - S-PL PIQ – Analog Smile (CH1 / CH2)
Gentle low and high enhancement with smooth midrange balance.
EQ Focus: Broad tonal shaping / Character: Musical & balanced - S-PL PIQ – Vocal Presence (CH1 / CH2)
Forward vocal enhancement with polished upper-mid clarity.
EQ Focus: Presence enhancement / Character: Clear & intimate - S-PL PIQ – Mix Depth (CH1 / CH2)
Subtle midrange sculpting for enhanced depth and separation.
EQ Focus: Midrange contouring / Character: Deep & spacious - S-PL PIQ – Tape Warmth (CH1 / CH2)
Soft tonal shaping with vintage-inspired warmth and density.
EQ Focus: Low-mid enhancement / Character: Warm & smooth - S-PL PIQ – Modern Clarity (CH1 / CH2)
Clean mastering enhancement with open highs and controlled lows.
EQ Focus: Full-spectrum clarity / Character: Modern & open - S-PL PIQ – Drum Attack (CH1 / CH2)
Focused transient enhancement with punchy upper-mid energy.
EQ Focus: Attack emphasis / Character: Punchy & energetic - S-PL PIQ – Bass Focus
Defined low-end shaping with improved bass articulation.
EQ Focus: Bass contouring / Character: Focused & controlled - S-PL PIQ – Stereo Shine (CH1 / CH2)
Wide, polished top-end enhancement for stereo buss finishing.
EQ Focus: High-frequency enhancement / Character: Wide & glossy - S-PL PIQ – Mid Scoop Space (CH1 / CH2)
Subtle midrange reduction for increased openness and dimension.
EQ Focus: Midrange shaping / Character: Spacious & airy - S-PL PIQ – Master Polish (CH1 / CH2)
Final-stage mastering enhancement with balanced tonal refinement.
EQ Focus: Overall tonal balance / Character: Smooth & refined
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
- Top-end remains open and polished without harshness
- Low frequencies stay focused and controlled
- Midrange shaping enhances depth and separation naturally
- Broad EQ curves preserve musical balance and transparency
Audio Demo
Compare the original hardware signal and the NAM profile across a range of sources — bass, guitar, synth, vocals, and full mixes.
Each example demonstrates how closely the profile captures the tonal balance, harmonic response, and musical character 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-oriented EQ settings
- Consistent calibration across all profiles
- Designed for subtle but meaningful tonal refinement
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 harmonic 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 EQ adjustments can affect perceived loudness, some profiles may sound louder or more detailed at first impression.
Please level-match carefully when comparing profiles to better evaluate tonal differences rather than overall 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.
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Jose I. (verified owner) –
I’m using this S-PL PIQ Mastering Equalizer Profiles on my Master, Mix Buss, and daily Studio work, looking forward to trying them out with the new A2 update