
KNOCK
KNOCK is a one-knob drum impact processor designed to instantly make drums hit harder, tighter, and more finished. Instead of simply adding distortion or volume, the single IMPACT knob drives a full macro engine that reshapes transients, adds harmonic weight, reinforces low end, enhances punch frequencies, and controls peaks so the drums feel bigger without destroying the mix.
Under the hood it combines multiple stages—transient shaping, harmonic processing, density control, and clipping—into a single streamlined workflow.
What makes KNOCK different from most one-knob plugins is that it isn’t just one effect hidden behind a macro. Most simple processors are just saturation or transient shaping. KNOCK is a program-dependent drum impact system that reacts to drum hits and adjusts multiple processes at once, tightening the relationship between attack, body, and harmonics so drums feel powerful and cohesive on any system—from studio monitors to phones.

KNOCK is different from typical one-knob plugins because it isn’t just a single effect hidden behind a macro. Instead, the IMPACT knob drives a full, program-dependent drum processing engine that reshapes transients, adds harmonic weight, reinforces low end, controls peaks, and glues the drum bus together simultaneously. The result is a plugin that makes drums feel tighter, punchier, and more finished in seconds, delivering the simplicity producers want while using the kind of layered DSP normally found in much more complex processors.
PRECISION
We believe great tools are built with intention. Every control, algorithm, and decision is designed to be purposeful, predictable, and reliable in real production environments.
FOCUS
Vertex Audio products are built to solve specific problems—clearly and efficiently. No clutter. No distractions. Just tools that help you make better decisions, faster.
INDEPENDENCE
We build without outside influence or trend chasing. This allows us to prioritize sound quality, workflow, and long-term value over shortcuts or marketing noise.
RESULTS
Our work is judged by what comes out of the speakers. If it doesn’t translate, perform, and hold up in real sessions, it doesn’t ship.
HONESTY
We value transparency in design, communication, and development. No inflated claims—just tools that do exactly what they’re designed to do.
RESPECT FOR THE CRAFT
Vertex Audio is built by and for people who take music production seriously. We respect the process, the time it takes, and the standards professionals expect.


