Tonight’s plan is simple: put on a record, pick the preset that matches it, and stop guessing at ten sliders. ZonaReq ships 29 presets, and the ones named after genres earn their shape from something real about how that music was made, not from a marketing label stuck on a random curve.
Why the default preset sounds wrong
A flat response treats a loud, compressed rock mix and a close-mic’d jazz trio the same way, and neither ends up sounding like what the engineer heard in the studio. Rock mixes are built to survive small speakers and car stereos, so they get pushed at both ends. Jazz recordings are mixed to preserve the natural balance of the room, so piling on the same bass and treble just smears the upright bass and hardens the cymbals.
- Open ZonaReq and go to the equalizer panel.
- Pick the preset that matches what’s playing — Rock, Jazz, or another from the list — instead of building one from scratch.
- Switch back to flat for ten seconds and compare. If the low mids still sound boxy or thin after the preset, that’s the cue to nudge one band, not to keep hunting for a different preset.
What the rock preset changes
The rock preset boosts around 60 to 80 Hz for kick and bass punch, dips 250 to 500 Hz to pull the boxiness out of distorted guitars, then lifts 2 to 4 kHz for edge and 8 to 16 kHz for cymbal air. That dip in the middle is doing real work: rock mixes are already dense there, so cutting it is what makes the boosted ends sound like clarity instead of mud.
Where jazz differs
Jazz looks almost nothing like that, and the difference explains why swapping presets between the two genres sounds wrong immediately.
The jazz preset stays close to flat through the mids, because that’s where horns, piano and double bass overtones actually live — the same range rock cuts out. It adds a small warmth boost around 80 Hz for the body of an upright bass and a light lift near 8 kHz for brush and cymbal detail. Nothing dramatic, because the goal is to sound like the room the trio was recorded in, not to compete with a car stereo.
When it’s the room, not the genre
Genre presets solve a mix problem, but a lot of what people blame on genre is actually a room or speaker problem, and no preset fixes that. If a track booms every time it hits 100 Hz regardless of what’s playing, that’s a desk or a room mode reinforcing that one frequency, and the fix is a narrow cut at that spot, not a different preset.
If your speakers boom at the same spot no matter what genre you pick, cut that one band by ear and leave it on across presets. That’s a speaker fix riding underneath the genre fix, not a replacement for it.
Is the free tier enough
The free tier’s three-band EQ and five presets get you in the right neighborhood — you can lift bass, cut a harsh top end, and hear a real difference. But it can’t reproduce the narrow presence bump or the low-mid scoop that make the rock and jazz presets sound like two different instruments were used to build them. That shaping needs the ten-band engine and the full 29-preset library, which is Pro.
One adjustment to try
If the rock preset turns harsh on laptop speakers, it’s usually that 4 kHz presence band stacking with a resonance the speaker already has. Pull that one band back by 1 to 2 dB before giving up on the preset entirely — the rest of the shape is still doing what it’s supposed to.