stute.x1D Loudspeaker Box Designer

The All-In-One solution for your loudspeaker box project.

Key features

Loudspeaker box enclosure editor plus calculation & simulation
Audio filter wizard plus calculation & simulation 
Design manager for the best project overview: Driver, enclosure, volume, cost,...
Powerful databases: Loudspeaker driver and audio crossover / enclosure material.
New: Acoustical frequency response optimization via EQ calculation
New: Acoustical check of the audio filter design 

System databases


Loudspeaker driver and components

The source of many calculations are stored in the two system databases: The loudspeaker driver and component database.

At first the powerful speaker driver database. It provides many driver parameter, like Thiele -Small values, driver size, short text description, and a hyperlink e.g. to the manufacturer oder dealer page.

Secondly the  component database. It includes audio filter parts (C, L, R...) plus the material for the loudspeaker cabinet. 

Audio Filter Design

step 1) Audio filter wizard
select the filter type and options. The wizard creates the schematic.
step 2) Filter schematic
fine tuning. Adjust the component values and check the result.
step 3) simulation
show the filter CHARAKTERISTIK and influence of a non-linear driver Z.
 step 4) bill of material / order
Print and order the parts. Displays the proposal to replace calc. parts.
Design check

Impedance Z

Simulate the function of the audio filter "Z EQ circuit" or simulate the effect of the non corrected driver Z to the audio filter slope.

Design check

Does your dealer provide 5.25uF?

The REALIZER function tries to replace the mathematical calculated part values with real existing parts from the market (component database). Simulate the effect!

design check

Frequency response

Left: Simulation of the frequency response of a 2 way loudspeaker box. Red: Woofer, Green: Tweeter, Olive-green: Sum signal

Right: Frequency response import from stute.x1A Audio Analyzer. Result with low pass filter (blue),

Design check

Acoustical pre-check of your filter design

Save money and check acoustical your audio filter design before you order the expensive passive filter components.

Transfer via click the passive audio filter design into the Behringer DCX2496 digital audio processor and make first a test hearing.

Loudspeaker Box Enclosure

step 1) calculation
Driver Enclosure calculation for a set of enclosure types.
step 2) simulation
Check the result via different Enclosure simulation types
step 3) enclosure wizard
IMPORT ALL DRIVER values FROM THE PROJECT VIEW and draw an enclosure.
 step 4) drawing / bill of material
 Finish the enclosure. display a 2D/3D drawing and BOM. 

Enclosure types

loudspeaker Enclosure

Simulation opportunities

Improve your sound!

Equalizer calculation

Acoustical frequency response adjustment (EQ)


Application video

Start point is the frequency response import, then via the EQ calculation to the EQ transfer into the Behringer DCX2496 audio processor.

Design manager


Project overview


MS Windows 7, 8 or 10 (32 & 64 bit), Processor i3 1.5GHz or above, RAM min. 2 GB, Screen resolution min. 1050x768 pixel, only Windows 7: Font size 100%


Acoustical frequency response import: Audio analyzer software stute.x1A required. Automatic data transfer into the digital processor Behringer DCX2496: Software DCX.Server and DCX.Client required. 

Two style options: "Light" and "dark"