The Reese bass is the backbone of drum and bass and a huge part of the modern UK bass sound. It is that thick, detuned, moving growl that fills the low mids and drives a track forward. This guide shows you how to build a Reese from scratch in Serum, then how to make it sit in a mix, so you can get that professional weight and movement in your own productions.
What actually makes a Reese
A Reese is two or more detuned saw waves beating against each other. That beating creates the restless, metallic movement. Everything else, the filtering, the distortion, the width, is built on top of that core. Get the detune right and you are most of the way there.
Building the Reese in Serum
Oscillators and detune
Start with a saw wave on Oscillator A and turn the Unison up to around 4 to 7 voices. Push the Detune until the voices grind against each other, then add a second saw on Oscillator B a semitone or an octave apart for extra thickness. Keep both oscillators in the low register, roughly one to two octaves below middle C, so the bass owns the low end.
Filter and movement
Route both oscillators through a low-pass filter and pull the cutoff down so the sound is dark and controlled. Assign an LFO or an envelope to the cutoff for slow movement, and automate it across your arrangement so the Reese evolves rather than sitting still. Small changes in cutoff over eight bars keep the listener engaged.
Distortion and character
A touch of waveshaping or distortion adds the harmonics that let a Reese cut through on smaller speakers. Use it in moderation, then high-pass those harmonics slightly so the added grit lives in the mids, not the sub.
Keeping the low end clean
A wide, detuned Reese can collapse in mono and lose power on a club system. Keep the sub frequencies mono below roughly 120Hz and only widen the mids and highs. Layer a clean sine sub underneath for the weight, and let the Reese handle the character and movement on top. This split, clean sub plus characterful mid bass, is how the pros get both power and interest.
Sitting it in the mix
Sidechain the Reese gently to your kick so the two share the low end without clashing, and carve a small notch where the bass and snare fight in the low mids. Reference against a track you admire at matched loudness so you judge tone rather than volume.
The fast way to a pro Reese
Sound design takes time, and sometimes you just want to write. Our Dirty Drum & Bass Vol.1 and UK Bass Vol.1 Serum packs are full of ready-made Reeses and bass patches designed to sit in a mix straight away, with the macros mapped so you can shape them fast. Load one, drop it in, and spend your time on the track instead of the patch. See the full range in the Preset Drive shop.
Learn to build a Reese by hand and you understand the genre. Keep a library of pro-made ones to hand and you finish tracks. Do both and your basslines will hit as hard as the records you look up to.
Get sounds that already sit in the mix
Skip the sound design. Our Serum packs and one-shots load straight into your DAW so you can finish a track tonight.
Ready to level up your sound?
Dirty Drum & Bass Vol.2
Deep reese bass presets and dirty sub-bass sounds for your productions.
£29.99
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