SUBZIX
Sub harmonics, bass saturation, and real-time Ice Score monitoring.
Subzix splits your signal at an adjustable crossover and applies pitch-tracked sub harmonics, three bass saturation modes, and an internal transient ducker exclusively to the low band — while the top passes through clean. The Ice Score gives you a real-time 0–100 bass health score so you know exactly how your sub will survive a club system before you export.
WHAT IT DOES
- Freeze Point crossover — drag the crossover frequency (20–250 Hz) to split your signal into a low band and a top band; every processing stage below applies only to the bass without touching the highs.
- Sub harmonics generator — adds a pitch-tracked octave-down sine below your bass with a Bass Key reference that shows an in-tune/out-of-tune indicator, so synthetic sub only appears when the bass is actually playing and stays in key.
- Bass saturation — Warm (soft tanh), Punch (asymmetric clip), or Grind (tube character) modes with a dedicated Drive control processed exclusively on the low band, so you drive the bass without coloring the top end.
- Ice Score — a real-time 0–100 health score combining phase correlation, bass/top energy balance, and sub presence — Club Ready (80+), Stable, Cracking, or Danger tells you how your low end will hold up on a mono club system.
- Rig Check + Bass DNA Report — Rig Check simulates a mono fold with a visual red overlay so you catch phase cancellation before export; Bass DNA Report generates a shareable text summary of your current bass analysis, and Frequency Seed encodes your settings as a 22-character string for sharing or recalling later.
WHY SUBZIX?
Most EQs and compressors process the full mix. When you want to work specifically on the sub and bass band — add harmonics, tighten the attack, drive the saturation, check the phase — you're either using a separate bass bus with multiple plugins or accepting that every adjustment touches the full signal. Subzix splits the signal at the Freeze Point and keeps every processing stage isolated in the low band. The top passes through with only stereo width and texture controls touching it. Nothing you do to the bass bleeds into the highs.
The Ice Score is the distinguishing feature. Most bass tools give you meters — Subzix gives you a weighted health score that combines three measurements into a single number with a traffic light status. The Rig Check mono fold simulation shows in real time how your sub behaves on a mono system, before you export. The Phase Alignment System automatically finds the optimal micro-delay on the right channel every 4096 samples and smoothly interpolates to it without clicks — you can lock it with Phase Lock when you find the sweet spot. Then the Bass DNA Report and Frequency Seed let you share your analysis and settings directly to social, which no other bass tool does. Remi Blaze built the social features specifically because producers constantly ask each other how their low end sounds — Subzix gives you a shareable answer.
Tech house and deep house producers use Subzix on bass buses and the master bus to monitor club compatibility throughout the mix rather than discovering phase issues at the end. Hip-hop and trap producers use the Sub Harmonics generator to add a pitch-tracked sub octave below an 808 or live bass. Mastering engineers use Rig Check and the Ice Score as a final mono compatibility check before delivery. And anyone building bass-heavy tracks for club systems gets a production target — Club Ready at 80+ is the goal, not just a meter reading.
HOW TO USE SUBZIX
How to add pitch-tracked sub harmonics to a tech house bass
- Load Subzix on your bass bus or bass insert. Drag the Freeze Point to match your bass — typically 80–150 Hz for a tech house bass. Watch the frequency bar show the RMS split between low and top bands.
- Set the Bass Key selector to the root note of your track. The tuning indicator shows in-tune, sharp, or flat status in real time as the bass plays.
- Increase Sub Harmonics from 0% — start at 25–40% and listen for the octave-down sine appearing below the bass. The Rumble Gate automatically cuts the sub between notes.
- Enable the Sub Scope to visualize the bass signal waveform. Watch the Ice Score — sub energy presence contributes 25 points toward Club Ready.
- Enable Rig Check for a mono fold check. If a red overlay appears, phase cancellation is reducing your sub in mono — engage Phase Lock to hold the current auto-alignment until the issue clears.
How to sculpt bass attack and drive independently from the top end
- Load Subzix on your bass channel. Set the Freeze Point to 100–120 Hz to isolate the low band cleanly from the mids and highs.
- Select a Saturation Mode — Warm for smooth harmonic rounding, Punch for aggressive asymmetric clip character, or Grind for tube-style overtones. Bring Bass Saturation Drive to 30–50%.
- Use Bass Attack (+/-100%) to shape the transient of the bass hit — positive values emphasize the attack, negative values soften it. Set Bass Sustain to shape how long the body of the note holds before it decays.
- Adjust Bass Gain to compensate for any level change the saturation introduced, then check with Auto Gain bypass comparison.
- Use Top Width (0–200%) on the top band to widen the highs if the bass saturation made the overall signal feel narrow by comparison.
How to verify mono compatibility before exporting a club mix
- Load Subzix on your master bus, after any compression and saturation but before your limiter. Set Mix to 100% and Bass Saturation to 0% — you're using Subzix for monitoring, not processing, in this context.
- Enable Rig Check. The Ice Chamber visualization activates the mono fold simulation. A red overlay means sub is cancelling in mono.
- Watch the Ice Score — the phase correlation component contributes 50 of the 100 points. A score below 50 means phase issues are significant. Use the Phase Lock button to freeze the auto-alignment and check if the score improves.
- Click Bass DNA Report to generate a text summary of the current phase, frequency balance, and Ice Score. Copy it to clipboard and note the reading — it's your mix's sub health at this stage.
- Once the Ice Score is consistently 80+ (Club Ready) with Rig Check enabled, your low end is mono-compatible and ready for the limiter and export.
RECOMMENDED SETTINGS
| Scenario | Settings | Result |
|---|---|---|
| Tech house bass bus | Club Ready preset, Freeze Point 120 Hz, Saturation Warm 30% | Bass-band drive with Ice Score targeting Club Ready |
| Add sub to thin bass | Sub Harmonics 35%, Bass Key set to root, Sub Scope on | Pitch-locked octave-down sub that follows the bass line |
| Floor pressure | Floor Plan preset, Freeze Point 100 Hz, Sub Harmonics 40%, Punch mode | Aggressive low-end weight with asymmetric drive character |
| Master bus mono check | Rig Check on, Mix 100%, Bass Saturation 0%, Ice Score monitoring | Real-time mono compatibility assessment before export |
| Parallel bass weight | Grind saturation, Drive halfway, Mix 40–50%, Bass Gain trimmed | Parallel tube harmonic character without full wet processing |
TECH SPECS
- FormatsAU, VST3, CLAP, Standalone
- PlatformmacOS 15.0+, Apple Silicon + Intel (Universal Binary)
- Latency5ms fixed lookahead; reported to host for automatic PDC compensation
- CPULight to moderate — pitch detection, crossover filtering, and phase scan run on a background cadence
- OversamplingNone
- Presets12 factory presets (+ hidden Cryo presets unlocked via easter egg)