Guides

Guides · Work in the app

Settings and themes

Where to change how 00 Simulator looks and what it warns you about. Everything here is under Settings, the cog at the right of the header, and none of it changes a design’s box or driver.

The Settings menu#

ItemWhat it opens
Display…Light or dark, the theme, the top of the frequency axis and the unit system. Display.
Appearance…The theme builder, for a theme of your own. Themes.
Simulation…How the response is worked out above the bass, and the warning lines on the graphs. Simulation.
Drivers…The driver library: the 00 Bits library and the drivers you made or imported. Drivers: find, create, import.
Passive radiators…The same library for passive radiators.

Display#

SettingChoicesWhat it does
ModeLight, Dark, SystemSystem follows your computer or phone. Kept in this browser.
ThemeDefault, Grosso, then any themes you have savedSwitches the app’s greys and lines. Customise… closes the dialog and opens the theme builder. Themes.
Upper frequency, under AxesAuto, 400 Hz, 1 kHz, 2 kHz, 5 kHz, Custom (20 to 20,000 Hz)The right-hand end of every frequency axis, and the solver works up to it too. Auto is 400 Hz, or 2 kHz once the workspace holds a horn. Saved with the workspace.
Unit systemMetric or ImperialLengths and volumes in millimetres, centimetres and litres, or in inches and cubic feet. Saved with a signed-in workspace, and in this browser as a guest.

Themes and the theme builder#

A theme sets the app’s greys, lines and accent in both light and dark mode; it never changes an enclosure’s own colour. Default and Grosso are built in. As the Display dialog says, Grosso puts more contrast between the sections of the side panels: section headers stand out from the panel as bars, and fields sink to the background colour.

Appearance… opens the builder, Appearance, as a small palette over the dashboard. It has no backdrop, so the whole app is the preview, and you can drag it by its header to see either side panel. On a phone it is a sheet at the bottom of the screen.

PartWhat it changes
Theme and Colour modeThe theme you start from (Built in or Yours), and whether you are editing its Dark or Light version.
SeparationOne slider for how strongly the panel sections stand apart: Default at 0, Grosso at 100, up to 160.
Open sectionAccent rail draws a line in the section’s colour down an open section’s header; Function tint tints the header with it.
ColoursAccent, Background and Text for the mode you are editing. Reset puts one back to the app’s own.
AdvancedThe 15 values behind Separation one by one: surfaces, hairlines, text, graph grids and more. Hover a name for what it touches.
ContrastChecks for the mode you are editing. Text must reach 4.5:1, and field edges and the accent 3:1. A check that falls short says what to change, and Fix makes the change when one is enough; Fix all fixes several at once. Passing checks fold away.
  1. 1

    Start from a theme

    Pick Default or Grosso under Theme. The built-in themes never change: the first edit starts an unsaved copy, and the header says so.
  2. 2

    Adjust it

    Move Separation first, then the rest. The app repaints as you drag, and Contrast warns you without stopping you.
  3. 3

    Save it

    Save as… names your copy. Once saved, Save writes later changes over it. You can keep 12 themes; signed in, they follow your account to other browsers.

The icons at the foot of the builder are Import a theme (paste one or choose a file), Export this theme as a file, Copy the theme as JSON, Reset to the saved theme and Delete this theme. A theme file is plain JSON, so you can pass one on.

Simulation#

SettingChoicesWhat it does
Non-horn upper responseEstimated · BITS frequency limit (the default) or Physical modelHow SPL is worked out above the bass for every enclosure that is not a horn. Saved with the workspace. How the two differ.
Port velocity, under Warning thresholds10 to 30 m/s in 1 m/s steps; 17 m/s to startThe dashed line on the Port Velocity tile. The dialog’s hint: 15 to 20 m/s is typical, higher for flared ports. Port Velocity.
Show Xmax reference linesOn to startThe driver’s Xmax as a line on the Excursion tile. Excursion.

The two warning settings are kept in this browser, not in the workspace, so they apply to every design you open here. You can also change the port line from the Port Velocity tile: click the value in its header.

Estimated or physical model#

Estimated · BITS frequency limit treats the driver itself as flat and, when the driver’s data gives an upper frequency limit, rolls it off from there at 24 dB per octave. Physical model works the top end out from the driver’s parameters, voice coil inductance included. The box, the ports and your EQ apply either way, and Impedance, Excursion and Phase always use the physical model. Horns always use it too, which is why the setting says non-horn.

SPL (dB)

dB

  • Estimated88 dB at 392 Hz
  • Physical model89 dB at 162 Hz
Ciare 12.00SW in the 55 L vented example at 1 W, half space, 1 m, up to the 400 Hz that Auto uses without a horn. Both curves come from one run of the solver when this page was built.

Here the two stay within 1.1 dB of each other up to 100 Hz and part company above it: at 400 Hz the physical model reads 2.5 dB below the estimate. For a subwoofer that is crossed over low the choice hardly matters. For a box that plays higher, compare both before you trust the top octave, and open this example to try it.

Ask your AI#

Ask your AI

The 00 Simulator connector can read, check and save themes on your account, so your assistant can make one to your description.
Using 00 Simulator, save a theme based on Grosso with stronger section dividers, check its contrast in dark and light mode, and switch me to it once it passes.
or open it inClaudeChatGPT

Connect your assistant so it can open your designs.

The workspaceOn a phoneKeyboard shortcutsPort VelocityExcursionModel and limits