Saturation / measured

Black Box HG-2

Plugin Alliance · VST3

10.0/10 Measured score · Measured signal quality · how scored

Tonal shaping

±1.47 dB

moderate · character, by design

Harmonic character

4.986%

notable · character, by design

Noise

10.0/10

−182 dBFS · scored

Level dependence

-49 dB

moderate · character, by design

Latency

32 smp

factual · not scored

On the bench

48 kHz · 512-block · offline · same procedure for every plugin
Magnitude responsestepped sine, −12 dBFS
2026-07-17T18:06:41.759863 image/svg+xml Matplotlib v3.10.9, https://matplotlib.org/

Output level vs. frequency.

It shapes your tone by up to ±1.5 dB on purpose — that built-in curve is part of its sound.

Distortion vs level1 kHz, THD / THD+N
2026-07-17T18:06:41.844638 image/svg+xml Matplotlib v3.10.9, https://matplotlib.org/

THD   THD+N. THD is the trustworthy figure; THD+N is method-floor-limited at low levels.

It adds clear harmonic color (5.0% at full level) — the grit and warmth this design is meant to give.

Latency, reported
32 smp
Latency, measured
32 smp (matches)
Onset
22 smp
Noise floor
−182.1 dBFS
Linearity residual
-48.7 dB (1000 Hz, -12/-18 dBFS)
Processing cost
not measured

Background hiss sits at -182 dBFS — far quieter than anything you would hear in a mix.

How hard you push it changes what it does (a -49 dB gap between levels) — expected for a saturator, which reacts to input level.

It delays the audio by 32 samples (0.7 ms at 48 kHz) and reports that delay, so your DAW lines it back up.


What these measurements mean

read from the numbers above · character / coloring design

On the bench it behaves like a coloring tool, scoring 10.0/10 on how clean its signal path is; its tone-shaping and harmonics are reported as character, not graded as faults. It shapes your tone by up to ±1.5 dB on purpose — that built-in curve is part of its sound. It adds clear harmonic color (5.0% at full level) — the grit and warmth this design is meant to give. Background hiss sits at -182 dBFS — far quieter than anything you would hear in a mix. How hard you push it changes what it does (a -49 dB gap between levels) — expected for a saturator, which reacts to input level. It delays the audio by 32 samples (0.7 ms at 48 kHz) and reports that delay, so your DAW lines it back up.

Measured score 10.0/10 — signal-path noise floor (the shaping and harmonics are the design's intent, shown as character, not graded). How scoring works.


What people report

sourced sentiment · in our words, not a bench measurement
8.9/10 published & press sentiment, 5 sources · a separate figure from the measured score

Consistently praised

  • Produces an exceptional spread of tube coloration, from gentle harmonic sheen and glue up to outright distortion, and sounds superb on the mix bus as well as individual tracks.
  • The serial Pentode and Triode stages plus the switchable parallel saturation circuit, with its low/flat/high focus, yield a lot of tonal variety from a single unit.
  • Additions over the hardware, including the wet/dry Mix, the Density control for driving the tubes while holding level, and the variable Air, add flexibility, and it stays efficient on CPU.

Common criticism

  • The three-stage gain structure and signal flow take some getting used to before the results become predictable.
  • There is no dedicated final output level for accurate level-matched bypass, and it is aimed at overall tone shaping rather than detailed sound design or surgical work.

A review score is shown only when at least two independent sources — published reviews or genuine user discussion — return usable text. Launch or announcement coverage alone does not qualify, so some plugins read N/A here while still carrying a full measured score above.


How it sits in saturation

measured score + bench figures, then the sourced review score (separate, N/A if unscored) · alphabetical · not ranked
PluginMeasured /10Mag devMax THDLatencyNoiseReview /10
Black Box HG-210.0±1.5 dB4.986%32 smp−1828.9
Channel G Console10.0±0.1 dB0.000%0 smp<floor8.5
Decapitator10.0±5.4 dB7.929%63 smp−1638.9
Dist COLDFIRE10.0±6.5 dB39.830%143 smp<floor8.8
Dist OPAMP-2110.00 smp<floor7.5
Dist TUBE-CULTURE9.9±3.8 dB51.955%112 smp−154N/A
Escalator10.0±0.2 dB6.177%0 smp<floor7.6
FireCharger10.0±2.1 dB1.585%8192 smp<floor8.0
Lurssen Mastering Console10.0±6.4 dB1.705%419 smp−2237.4
Quad Saturator9.2±0.1 dB2.706%4 smp−117N/A
Saturator X10.0±1.5 dB26.227%387 smp−2218.4
Super VHS10.0±3.9 dB7.124%1024 smp<floor7.9
TAIP10.0±2.5 dB25.546%63 smp−1658.4
Tape MELLO-FI4.5±65.8 dB2.569%248 smp−707.6
Sponsored · not a measurement

This lane is separate from measured results

No promoted plugins here. Anything in this lane is labeled and never affects the bench numbers or the order plugins appear in.