How to Create Riddim Bass in Serum – Step by Step

What Makes Riddim Bass Unique

Riddim is all about the bass. Unlike other dubstep subgenres that rely on complex sound design and rapid-fire patches, riddim focuses on repetitive, hypnotic bass patterns with heavy wobbles and aggressive tonal character. The bass sound itself is usually a thick, growling mid-range tone with lots of movement and attitude.

The beauty of riddim production is that a single well-designed bass preset can carry an entire track. Getting that sound right in Serum is easier than you might think once you understand the core technique. Let us walk through the process step by step.

Setting Up the Oscillators

Oscillator A – The Main Body

Load a saw-based wavetable in Oscillator A. The default Saw wave works, but for more character try wavetables from the Spectral or Digital categories. Set the unison to 2-4 voices with a detune of around 0.08-0.15. This adds thickness without making the sound too wide or washy.

Set the octave to match your desired pitch range. Most riddim bass sits in the C1-C2 range for the sub content, with the mid-range character coming from the wavetable harmonics and processing.

Oscillator B – Adding Grit

Turn on Oscillator B and load a different wavetable with more harmonic complexity. Wavetables from the Analog or Distortion categories work well here. Set it to the same octave as Oscillator A or one octave higher for extra bite.

Keep Oscillator B at a lower volume than A (around 30-50%). Its job is to add harmonic content and grit, not to dominate the sound. Experiment with different wavetable positions to find the sweet spot where it adds character without muddying things up.

The Filter – Where the Wobble Lives

Low Pass Filter Setup

The filter is the heart of any riddim bass. Set Filter 1 to a low-pass filter type. The MG Low 24 or Low 18 types give a warm, musical roll-off that works perfectly for wobble bass. Turn the cutoff down to about 30-40% and set the resonance to around 20-30%.

LFO Modulation

Assign LFO 1 to the filter cutoff. This is what creates the classic riddim wobble. Set the LFO rate to 1/4 note synced to your project tempo for a standard wobble speed. Use a triangle or sine wave shape for smooth, musical movement.

Adjust the modulation depth until the filter sweeps from a dark, closed sound to a brighter, more aggressive tone. The sweet spot depends on your wavetable and filter settings, so use your ears. You want enough movement to create an obvious wobble without the sound getting too thin at the top of the sweep.

Try switching between different note values (1/2, 1/4, 1/8, 1/16) for different wobble speeds. Riddim often uses a combination of speeds, switching between them throughout the track for variation.

Processing and Effects

Distortion

Distortion is essential for getting that aggressive riddim character. In Serum FX rack, add a Distortion module. Start with the Tube or Warm Tube mode for a saturated, crunchy tone. Drive it fairly hard (50-70%) and adjust the mix to taste.

For extra aggression, try the Hard Clip or Diode 1 modes. These give a more intense, digital distortion that cuts through a mix. Be careful with the drive amount on these modes as they can get harsh quickly.

Compression

Add the Compressor module after the distortion. Use a moderate ratio (4:1 to 6:1) with a fast attack and medium release. This tames the peaks from the distortion and gives the bass a more consistent, controlled feel. Riddim bass should feel heavy and relentless, and compression helps achieve that.

EQ Shaping

Use the EQ module to clean up the sound. Cut any muddy frequencies around 200-400Hz and boost the upper harmonics around 1-3kHz for more presence and bite. Roll off the extreme highs above 10kHz to keep the sound focused in the mid-range where riddim bass lives.

Making It Sound Professional

The difference between an amateur riddim bass and a professional one often comes down to the details. Add subtle macro assignments so you can tweak the sound in real time. Map Macro 1 to filter cutoff for manual wobble control. Map Macro 2 to distortion drive for intensity control. Map Macro 3 to wavetable position for tonal variation.

Layer your Serum bass with a clean sub sine wave on a separate channel. This ensures your low end stays solid regardless of what the mid-range is doing. Sidechain both layers to your kick for a clean, punchy mix.

Browse our riddim preset packs to hear how these techniques come together in professionally designed patches.

Start Making Riddim Today

Riddim bass design in Serum comes down to choosing the right wavetables, setting up a filtered wobble with LFO modulation, and processing with distortion and compression. Start with the basics outlined here, then experiment with different wavetables, filter types, and LFO shapes to develop your own signature sound.

Want a head start? Download our free Serum taster pack which includes bass presets you can study and modify to learn these techniques hands-on.