CPU load / RAM usage / Disk space reduced
The cleanest frequency response ever
Echo bug minimized



Brass is an extremely powerful mixing EQ for Nebula 4 / Nebula 4 Player delivering full bottom end, smooth midrange and beautiful top end. Middle bands provide bell shapes from surgical and narrow to wide and extensive. Low and high bands add wide bells and shelving curves for exceptional flexibility. Brass is a careful sampling of both active and transformer balanced outputs of a vintage reminiscent hardware unit acclaimed for its great musicality. Dual mode (12/18 dB/octave) High-Pass and Low-Pass filters complete the definitive arsenal of shaping tools.

Each band and preamp has been sampled without any converter / “calibration bias“ phase distortion. This allows to overlap the effect of more bands without adding unwanted coloration, reaching a new level of match with hardware for unparalleled results, even compared to hardware itself. This methodology is named SP Tech.


Audio Samples

We put great passion to get the perfect representation of the hardware. If you don’t trust our words, then trust your ears.



“Q” range on LM and M bands
0.5 to 3.8 (1.6 circa in the center)
Q” on L and H bands (fixed)
EQ full range [dB]
HPF [Hz]
25 to 400 with 46 steps – Dual mode 12/18 dB/octave switch selectable
LPF [Hz]
1.5K to 25K with 46 steps – Dual mode 12/18 dB/octave switch selectable
Low Frequency Band L [Hz] (stepped)
25, 35, 40, 70, 100, 125, 150, 250, 300, 400, shelf switch selectable
Low/Mid Frequency Band LM [Hz] (stepped)
50, 60, 70, 150, 200, 250, 300, 400, 600, 800, x10 switch selectable
Mid Frequency Band M [Hz] (stepped)
400, 500, 600, 1K, 1.5K, 2K, 2.5K, 4K, 6K, 9K
High Frequency Band H [Hz] (stepped)
1.5K, 2K, 2.5K, 4K, 6K, 8K, 10K, 15K, 20K, 25K shelf switch selectable
Preamplifier (switch selectable)
10 harmonics
In Trim range [dB]
Balanced Output (switch selectable)
A ‒ Active, T ‒ Transformer
Out range [dB]
Sample rates
Brass is designed to provide the same sound quality at each of the following sample rates: 44.1KHz, 48KHz, 88.2KHz, 96KHz
SP Tech




Frequency Response @44.1KHz