Version 0.3.2

Version 0.3.2

January 12, 2026

Overview

This release adds imperial unit support, significantly improves the user experience when entering Thiele-Small parameters, and increases limits for longer ports and higher tuning frequencies.

New Features

Imperial Units Support

Thanks to r/Mr-BPM for the suggestion!

• Settings cog: New settings button in the header to switch between metric and imperial units
• Volume unit toggle: Click the unit next to Box Volume to cycle through L → cm³ → m³ → ft³
• Length unit toggle: Click units next to port dimensions to cycle through mm → cm → in
• Persistent settings: Your unit preferences are saved and restored on next visit
• Note: Excursion values always display in mm for precision

Enhanced T/S Parameter Input

Thanks to Ron E @ DiyAudio for the suggestion!

• Text-based inputs: Switched from number inputs to text inputs with decimal keyboard support, allowing easier entry of scientific notation (e.g., 3.9e-4) and precise values
• Inline validation: Real-time validation with error messages displayed next to each field
• 2-column layout: More compact form layout fits more parameters on screen without scrolling
• Improved tabbing: Unit toggle buttons no longer interrupt tab navigation between fields
• Scientific notation in tooltips: Parameter descriptions now display proper subscripts and symbols

Smarter Auto-Derivation

• Multi-pass derivation: The derivation engine now runs multiple passes to resolve complex dependency chains
• New derivation: Cms from Vas + Sd: Can now derive compliance from equivalent volume and radiating area
• Cascading calculations: Enter Vas, Sd, Fs, Qms, Qes, and Re to automatically derive Cms, Mms, Qts, Bl, and Rms
• Bidirectional clearing: Changing a derived parameter (like Sd) now clears related fields (like Dd) so they can re-derive

Improvements

Increased Limits

• Tuning frequency: Increased max from 100Hz to 200Hz for midrange and smaller enclosures
• Port dimensions: Increased port diameter/width limit from 300mm to 500mm to allow for longer calculated port lengths up to ~1m

Better Form Layout

• Compact parameter sections: Electrical, Mechanical, Q Factors, and Physical parameters organized in grid layouts
• Inline labels: Labels positioned to the left of inputs for a cleaner look
• Consistent styling: Brand, Model, and Notes fields now match the parameter input styling

Technical Details

The derivation system now supports the following calculation chains:

• Q factors: Qts ↔ Qms + Qes (any two derives the third)
• Geometry: Sd ↔ Dd (diameter to area and vice versa)
• Compliance: Cms from Vas + Sd, or from Fs + Mms
• Mass: Mms from Fs + Cms
• Motor: Bl from Re + Qes + Mms + Fs
• Damping: Rms from Qms + Mms + Fs

This allows users to enter commonly available specifications and have the simulator automatically calculate the remaining parameters needed for accurate simulation.