
Headrush Compressor
Side Comp
Inspired by HeadRush® Original
The Side Comp It is an advanced compressor with behavior sidechain-style, designed for:
- Precise dynamic control
- Rhythmic effects (ducking/pumping)
- Modern and clean mix
Main features:
Compression transparent and responsive
Complete parameters (study type)
Ability to create effects rhythmic and dynamic
It is the most “creative” compressor in the HeadRush library
SOUND CHARACTER
- Very clean and checked
- It does not color the sound
- Extremely adjustable
- Can get rhythmic (ducking)
- More modern than the DynIII
Control Parameters
ThresholddB
Level above which compression starts:
Lower → more compression
Higher → less compression
Basis of all behavior
Ratio
Compression amount:
- 2:1 → light
- 4:1 → average
- 6:1+ → strong
Determines how much the signal is reduced
Attackms
Activation time:
- Low → immediate compression
- High → lets the transient pass
Influences the punch
Releasems
Release time:
- Bass → fast/rhythmic effect
- High → smoother
Key for pump effects
KneedB
Compression transition:
- Low → hard knee (sharp)
- Alto → soft knee (more musical)
GaindB
Make-up gain:
- Compensates for lost volume
- Can be used as a boost
Pro Tips
- More compression → lower Threshold
- More punch → increases Attack
- More pump effect → fast release
- More natural → knee high
Universal setup:
- Threshold: -25dB
- Ratio: 3:1
- Attack: 20 ms
- Release: 70 ms
- Knee: 6 dB
- Gain: +3 dB
Perfect and balanced sound
Quick Reference
- Threshold (dB): When compression starts
- Ratio: How much it compresses
- Attack (ms): Input speed
- Release (ms): Output speed
- Knee (dB): Softness
- Gain (dB): Final volume
Setup Examples
Transparent compression
Threshold-20dB
Ratio2:1
Attack25 ms
Release80 ms
Knee6 dB
Gain+2 dB
Natural
Controlled funk/clean
Threshold-25dB
Ratio3:1
Attack15 ms
Release60 ms
Knee5 dB
Gain+3 dB
Uniform groove
Ducking / rhythmic effect
Threshold-30dB
Ratio5:1
Attack5–10 ms
Release40–60 ms
Knee3 dB
Gain+3 dB
Pump effect
Lead checked
Threshold-28dB
Ratio4:1
Attack10 ms
Release90 ms
Knee6 dB
Gain+4 dB
Sustain + control

