Integer Audio · GroundControl Nodal Series
The bass that sounds right in your studio isn't the bass in the recording — it's your room's resonances added on top. The Nodal Series removes them.
Every rectangular room resonates at specific bass frequencies. Sound bounces between parallel walls and builds up into standing waves — room modes — that make certain notes ring for a second or more after the music stops. Other notes are artificially quiet. The result is that every mixing decision you make in the bass is filtered through your room's own frequency response.
Standard acoustic treatment — foam panels, hanging baffles, rockwool corner traps — works above 200 Hz. Below 100 Hz, these materials need to be impractically thick to have any effect. A 4-inch foam panel does almost nothing at 55 Hz. Most home studios are completely untreated in the one frequency range that matters most for mixing.
In a typical untreated home studio, the room is still ringing audibly at 55 Hz for over a second after the music stops. Your monitors go silent. The room keeps playing.
The Nodal Series uses a different mechanism — tuned resonant absorption — to address bass modes efficiently at 179 mm total depth, without filling your corners with thick absorbers.
Each unit contains thin membrane panels mounted in front of a sealed cavity. When bass at the target frequency strikes the membrane, it converts that acoustic energy into heat through internal damping. Tuned absorption. Minimal depth. Corner placement where modal energy is highest.
Two independently tuned chambers · one enclosure · natural birch ply frame · satin black membranes
Completes the system · two units side by side match the Nodal 55/70 width · same depth · same frame profile
Two Nodal 55/70 units stacked, two Nodal 85 units on top — a single 630 mm wide column from floor to ceiling. Step through the assembly and drag to inspect from any angle.
Enter your room dimensions and see the predicted RT60 reduction at each tuning frequency with different Nodal configurations. The simulation uses the Eyring acoustic model with the Nodal Series absorption parameters.
Enter your room dimensions, wall materials, and number of units. The simulator shows predicted RT60 curves before and after treatment — so you know what to expect before spending anything.
Free to use. No registration required.
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CNC-cut 12 mm Baltic birch plywood frame with a clear hardwax oil finish. Satin black painted MDF membrane panels. A consistent 6 mm birch ply reveal borders every membrane on all four sides — the same width on the outer edges as on the 18 mm centre crossmember between chambers.
The Nodal Series is currently in pre-production. Register your interest to be notified when units are available, receive pricing information first, and get access to the full technical guide.
Download full technical guide (PDF)© 2026 Integer Audio LLC · Specifications subject to change pending prototype validation