stute.x1D Loudspeaker Box Designer

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

Some key features

Fast loudspeaker box enclosure design incl. volume calculation & simulation
Easy audio filter calculation per wizard incl. simulation and transfer to commercially available parts
Powerful driver database with many filter options plus a web link to your dealer store and driver datasheet and measurement
Component database for crossover & enclosure material incl. link to your dealer online shop
Room EQ function to optimize the frequency response of your loudspeaker box via Audio-DSP 
Acoustical pre-check of the passive audio filter design via Audio-DSP

The source for your designs


Driver and component database

The start point for all loudspeaker box designs are the loudspeaker driver. The driver database from stute.x1D provides many information per driver and ways to find the best driver for your design.

Also included a second database which contains commercially available  audio filter components and enclosure raw material for a realistic design. 

Audio Filter Layout


How It Works

Step 1: Filter Wizard

Calculate per click the audio filter

Step 2: Schematic output

View & store the schematic 

Step 3: Simulation

Filter tuning: Adjust and verify the modifications 

Step 4: BOM / order

Bill of material output 


Influence of the Impedance Z

With stute.x1D  you visualize effects of the non corrected driver impedance to the audio filter slope. If needed, you creates and checks easily your impedance EQ circuit, before you buy it. 

Real world

Does your dealer provide 5.25uF?

The REALizer function tries to replace the mathematical calculated part values with commercially available parts, based on the component database. Simulate the difference!

Import & Simulation

Frequency response

Left diagram: As an example the sum signal simulation of a 2 way loudspeaker box. Red: Woofer, Green: Tweeter, Olive-green: Sum signal

The right diagram displays an imported measurement of a driver without and with a high pass audio filter (blue)

Design check

Acoustical pre-check of your passive filter design

Save money and time with the acoustical pre-check of your audio filter design, before you order the expensive passive filter components.

Transfer via a click the passive audio filter design into the Behringer DCX2496 Audio-DSP and make first test hearings. Adjust the digital audio filter until you are fine with the sound. Order then the components.

Loudspeaker Box Enclosure Design


How It Works


Driver enclosure calculation 

Step 2 Simulation

Check & modify the enclosure details 

Step 3 Wizard

Create an enclosure and place the driver

Step 4 Finalize

Adjust & finish the enclosure design


Enclosure types

Design check

Simulation opportunities

Room EQ / Sound tuning

Improve your sound

Frequency response correction (EQ)

Room EQ

Sample application 

Start point is the frequency response import from the audio analyzer stute.x1A. 

Loudspeaker Box Project Summary


Design and cost overview


MS Windows 7, 8 or 10 (32 & 64 bit), Processor i3 1.5GHz or above, RAM min. 2 GB, Screen resolution min. 1050x760 pixel. Internet connection to activate the license. 


Acoustical frequency response or Thiele Small data import: Audio analyzer software stute.x1A required. Automatic data transfer into the audio processor Behringer DCX2496: The Software DCX.Server and DCX.Client is required. 

style options: "Light", "dark"