6030 Ultimate Comp — measured

On the bench

48 kHz · 512-block · offline · same procedure for every plugin

Magnitude responsestepped sine, −12 dBFS

Output level vs. frequency.

It only nudges your tone — the level holds within ±0.62 dB across the range, so any shift in brightness or weight is small.

Distortion vs level1 kHz, THD / THD+N

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

It adds almost none of its own edge (at or below 0.002%), so it keeps the sound clean.

Latency, reported

0 smp

Latency, measured

0 smp (matches)

Onset

0 smp

Noise floor

below measurement floor

Linearity residual

-32.2 dB (1000 Hz, -12/-18 dBFS)

Processing cost

not measured

Its own background hiss is below what the bench can even measure, so it adds no noise you would hear.

What it does shifts with level (a -32 dB gap between levels), so it does not behave the same at every input level.

It adds no delay to your audio.

What these measurements mean

read from the numbers above · transparent / clean design

On the bench it behaves like a clean tool, scoring 8.4/10 on staying flat, low distortion, low noise, and steady behavior at any level. It only nudges your tone — the level holds within ±0.62 dB across the range, so any shift in brightness or weight is small. It adds almost none of its own edge (at or below 0.002%), so it keeps the sound clean. Its own background hiss is below what the bench can even measure, so it adds no noise you would hear. What it does shifts with level (a -32 dB gap between levels), so it does not behave the same at every input level. It adds no delay to your audio.

Measured score 8.4/10 — flatness, low THD, low noise and linearity, evenly weighted toward a clean pass-through. How scoring works.

What people report

sourced sentiment · in our words, not a bench measurement

9.0/10 published & press sentiment, 3 sources · a separate figure from the measured score

Consistently praised

Ten distinct compressor models load together on a single insert, so switching and A/B-ing between characters is fast and stays in one place.
Reviewers who lived with it for a long stretch found the range genuinely useful, from gentle leveling through to aggressive, each model with its own voice.
Clean, well-labeled interface with low latency and modest processing cost, so it slots easily into a chain.

Common criticism

The sheer number of models can be a lot to work through when a quick result is all you need.
Full price sits above many single-model compressors.

Sources — Tape Op ↗ SonicScoop ↗ McDSP (maker) ↗

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 compressors

measured score + bench figures, then the sourced review score (separate, N/A if unscored) · alphabetical · not ranked

Plugin	Measured /10	Mag dev	Max THD	Latency	Noise	Review /10
4030 Retro Comp	9.1	±1.4 dB	0.003%	0 smp	<floor	7.8
6030 Ultimate Comp	8.4	±0.6 dB	0.002%	0 smp	<floor	9.0
6060 Ultimate MC	9.5	±0.9 dB	0.000%	0 smp	<floor	N/A
Bettermaker Mastering Compressor	9.3	±0.0 dB	0.045%	0 smp	−105	N/A
Black 76	10.0	±5.6 dB	1.086%	34 smp	<floor	8.5
Bus Compressor	6.9	±2.1 dB	0.108%	34 smp	<floor	N/A
Comp DIODE-609	9.0	±0.4 dB	0.203%	32 smp	−110	8.0
Comp FET-76	10.0	±3.0 dB	0.000%	272 smp	<floor	8.5
Comp TUBE-STA	10.0	±1.5 dB	0.029%	32 smp	<floor	8.2
Comp VCA-65	8.5	±2.7 dB	0.000%	272 smp	<floor	7.8
CompressorBank CB303	9.8	±0.0 dB	0.011%	0 smp	<floor	8.4
Comprexxor	10.0	±6.5 dB	0.140%	72 smp	<floor	8.2
CORE Comp	10.0	±0.1 dB	18.693%	0 smp	<floor	N/A
Devil-Loc Deluxe	10.0	±6.8 dB	3.526%	63 smp	<floor	8.3
Dyna-Mu	10.0	±1.7 dB	0.715%	34 smp	<floor	8.3
VC-670	10.0	±1.5 dB	0.270%	3 smp	<floor	7.9
White 2A	10.0	±8.6 dB	0.906%	3 smp	<floor	8.3