# 00 Simulator docs > 00 Simulator is a loudspeaker enclosure simulator that runs in the browser. It models sealed, vented, passive-radiator, bandpass and horn enclosures from a driver’s T/S parameters, and assistants such as Claude and ChatGPT can use it through its connector. Source: https://simulator.00aud.io/docs Every docs page is also served as Markdown: add `.md` to its address, as in the links below. All of the docs in one file: https://simulator.00aud.io/llms-full.txt. Assistants connected to 00 Simulator (https://simulator.00aud.io/mcp) can search these docs and read a page or one section with the `search_docs` and `read_doc` tools. ## Start - [Your first design](https://simulator.00aud.io/docs/start/first-design.md): Build a vented subwoofer in 00 Simulator step by step: pick a driver, set the box, read the response and see what breaks at 200 W. - [The workspace](https://simulator.00aud.io/docs/start/workspace.md): A tour of the 00 Simulator workspace: the header, the enclosure list and panel, the Driver panel, tiles, layouts and the phone dock. - [Choose an enclosure type](https://simulator.00aud.io/docs/start/enclosure-types.md): The six enclosure types in 00 Simulator, from sealed to horn, compared on the app’s own examples: what each one gives and what it costs. - [Connect your assistant](https://simulator.00aud.io/docs/ai/connect.md): Add 00 Simulator to Claude, ChatGPT, Claude Code or another MCP client: the server URL, the steps for each app, and what you approve. ### Speaker design basics - [T/S parameters in five minutes](https://simulator.00aud.io/docs/start/ts-parameters.md): The few Thiele/Small parameters that shape a speaker box, what each one does, and their values for the drivers in 00 Simulator’s examples. - [Reading a response](https://simulator.00aud.io/docs/start/reading-a-response.md): How to read an SPL curve in 00 Simulator: how F3 and F10 are measured, what radiation space and distance do, and what bumps and dips mean. - [Limits: travel, heat and air](https://simulator.00aud.io/docs/start/limits.md): The three limits that stop a speaker getting louder (cone travel, voice coil heat and port air speed) and where 00 Simulator shows each one. - [From simulation to a build](https://simulator.00aud.io/docs/start/simulation-to-build.md): What 00 Simulator’s model assumes and leaves out, what to enter so the box you build matches it, and how to check the build with a measurement. ### Worked examples - [Vented 12-inch subwoofer](https://simulator.00aud.io/docs/cookbook/vented-subwoofer.md): Tune the vented subwoofer example, size its ports, check the duct length and protect the driver below tuning. - [15 L sealed subwoofer](https://simulator.00aud.io/docs/cookbook/sealed-subwoofer.md): Change the driver and power in a live 15 L sealed box, then compare bass output, system Q and cone excursion. - [Tapped horn subwoofer](https://simulator.00aud.io/docs/cookbook/tapped-horn.md): Drive the tapped-horn example harder, compare a high-pass filter and check cone excursion inside and below the useful band. ## Boxes - [Boxes overview](https://simulator.00aud.io/docs/boxes.md): The box types in 00 Simulator compared with one driver in one 10 L box: sealed, vented, passive radiator and bandpass, and what each is for. ### Types - [Sealed](https://simulator.00aud.io/docs/boxes/sealed.md): How a sealed box works in 00 Simulator: the air spring behind the cone, what the volume does to Qtc, F3 and excursion, and its fields. - [Vented](https://simulator.00aud.io/docs/boxes/vented.md): How a vented (bass reflex) box works in 00 Simulator: the port and its tuning, what the tuning does to F3 and port length, and its fields. - [Passive radiator](https://simulator.00aud.io/docs/boxes/passive-radiator.md): How a passive radiator box works in 00 Simulator: tuning with added mass, choosing a radiator, PR Excursion, and the fields to set. - [Bandpass 4](https://simulator.00aud.io/docs/boxes/bandpass-4.md): How a fourth-order bandpass box works in 00 Simulator: a sealed rear chamber, a front chamber loaded by a port or a passive radiator, and what each one changes. - [Bandpass 6](https://simulator.00aud.io/docs/boxes/bandpass-6.md): How a sixth-order bandpass box works in 00 Simulator: two ported chambers, two tunings, and what porting the rear chamber adds and costs. ### In every box - [Ports and end correction](https://simulator.00aud.io/docs/boxes/ports.md): Every port control in 00 Simulator: tuning and port length, shape, size and count, end correction, the lumped and distributed port models and port resonance. - [Several drivers and wiring](https://simulator.00aud.io/docs/boxes/multiple-drivers.md): Several identical drivers in one 00 Simulator enclosure: what the box, the power and the load share, how wiring changes the impedance, and dual voice coils. - [Losses and damping](https://simulator.00aud.io/docs/boxes/losses.md): The losses 00 Simulator assumes in every box: leakage, absorption and port loss, where each applies, and how much they change a design. ## Horns - [Horn loudspeakers in 00 Simulator](https://simulator.00aud.io/docs/horns.md): How 00 Simulator models horns: the eight horn types, how a horn path is described, and the route from Horn Editor to stuffing, folding and Hornresp. ### Horn types - [Front-loaded horn](https://simulator.00aud.io/docs/horns/front-loaded-horn.md): How to model a front-loaded horn in 00 Simulator: throat and rear chambers, a sealed or ported rear chamber, the Horn Editor, diagnostics, folding and Hornresp export. - [Back-loaded horn](https://simulator.00aud.io/docs/horns/back-loaded-horn.md): How to model a back-loaded horn in 00 Simulator: the direct front radiation and the horn mouth, the throat chamber, the Horn Editor, diagnostics, folding and Hornresp export. - [Tapped horn](https://simulator.00aud.io/docs/horns/tapped-horn.md): How to model a tapped horn subwoofer in 00 Simulator: front entry and rear tap positions, the throat chamber, the Horn Editor, diagnostics, folding and Hornresp export. - [Offset-driver horn](https://simulator.00aud.io/docs/horns/offset-driver-horn.md): How to model an offset-driver horn in 00 Simulator: the driver entry position, throat and rear chambers, a sealed or ported rear chamber, diagnostics, folding and Hornresp export. - [Stubbed horn](https://simulator.00aud.io/docs/horns/stubbed-horn.md): How to model a stubbed horn in 00 Simulator: the stub junction position, the closed stub path, throat and rear chambers, diagnostics and Hornresp export. - [Compound horn](https://simulator.00aud.io/docs/horns/compound-horn.md): How to model a compound horn in 00 Simulator: separate front and rear horn paths, coupling chambers, rear tuning, diagnostics and Hornresp export. - [Multiple-entry horn (MEH)](https://simulator.00aud.io/docs/horns/multiple-entry-horn.md): How to model a multiple-entry horn (MEH) in 00 Simulator: extra drivers with their own power and EQ, entry positions, chambers and ports, diagnostics and Hornresp export. - [Paraflex horn](https://simulator.00aud.io/docs/horns/paraflex-horn.md): How to model a Paraflex horn in 00 Simulator: subtypes PH1 to PH4, the main and auxiliary paths, the diaphragm adapter, diagnostics and Hornresp export. ### Horn tools - [Shape a horn in the Horn Editor](https://simulator.00aud.io/docs/horns/editor.md): How to shape a horn path in 00 Simulator: the Horn Editor tile, its path bar and markers, the drawing and its gestures, and the table of typed values. - [Damp a horn with stuffing](https://simulator.00aud.io/docs/horns/stuffing.md): How to stuff a horn in 00 Simulator: fibrous fill by airflow resistivity, set per span in the Horn Editor, the Miki material model and its limits, and Hornresp export. - [See what the air is doing inside the horn](https://simulator.00aud.io/docs/horns/diagnostics.md): How to read horn particle velocity, pressure, acoustic impedance and radiating outputs in 00 Simulator, with figures from the tapped and back-loaded horn examples. - [Fold a horn into a cabinet](https://simulator.00aud.io/docs/horns/folding.md): How the Fold tile packs a front-loaded, back-loaded, tapped or offset-driver horn into a cabinet you can build: patterns, locks, checks, cut list and exports. - [Hornresp export and validation](https://simulator.00aud.io/docs/horns/hornresp.md): How to export 00 Simulator horns as native Hornresp records, what each type becomes, what carries over, and how the horn model is checked against Hornresp. ## Guides - [All guides](https://simulator.00aud.io/docs/guides.md): Step-by-step guides for 00 Simulator: drivers, power and limits, EQ, comparing designs, layouts, measurements, sharing and more. ### Design - [Drivers: find, create, import](https://simulator.00aud.io/docs/guides/drivers.md): Find a driver in the 00 Simulator library, or add your own: enter or paste its T/S parameters, import WinISD or Unibox files, and fix values that disagree. - [Power and limits](https://simulator.00aud.io/docs/guides/power-and-limits.md): Set the input power for each design in 00 Simulator, then use Max SPL and Headroom to see how loud it can play and which limit stops it first. - [Fix a noisy port](https://simulator.00aud.io/docs/guides/noisy-port.md): Bring a vented box’s port under the air speed warning in 00 Simulator: more port area, less power or a high-pass, and what each fix costs. - [EQ and filters](https://simulator.00aud.io/docs/guides/eq-and-filters.md): Add high-pass, low-pass, parametric, shelf and Linkwitz filters to an enclosure in 00 Simulator, edit them on the graph, and protect the cone. - [Compare designs](https://simulator.00aud.io/docs/guides/compare.md): Compare enclosures in 00 Simulator: several designs on one graph, colours, eyes and solo, the Metrics and Compare tiles, and undo and saved versions. ### Work in the app - [Layouts and pinned tabs](https://simulator.00aud.io/docs/guides/layouts.md): Arrange the 00 Simulator dashboard: add, move and resize tiles, switch between the built-in layouts, save your own and pin up to 5 as tabs. - [Workspaces and accounts](https://simulator.00aud.io/docs/guides/workspaces.md): Work as a guest in your browser, or sign in to keep workspaces in the cloud: sign-in, the workspace library, drafts, Recently deleted, undo and saved versions. - [Settings and themes](https://simulator.00aud.io/docs/guides/settings.md): Every setting in 00 Simulator: light or dark mode, themes and the theme builder, the frequency axis, units, the upper-response model and the warning lines. - [Keyboard shortcuts](https://simulator.00aud.io/docs/guides/shortcuts.md): Every keyboard shortcut in 00 Simulator: undo and redo, the enclosure list, number fields, tiles, your workspaces, and search in the app, docs and gallery. - [On a phone](https://simulator.00aud.io/docs/guides/phone.md): How 00 Simulator works on a phone: one tile at a time, the dock with its power, EQ and layout sheets, the drawers, and what needs a computer. ### Measure, share and build - [Measured traces and notes](https://simulator.00aud.io/docs/guides/measurements.md): Import REW, .frd, .zma and CSV measurements into 00 Simulator, link and align them with a design, style them, and pin notes to your graphs. - [Share and publish](https://simulator.00aud.io/docs/guides/sharing.md): Share a 00 Simulator design as a link: who can see it, guest links versus drafts, publishing to the Gallery, editing, deleting and your public profile. - [Import and export](https://simulator.00aud.io/docs/guides/import-export.md): Move designs in and out of 00 Simulator: .00sim projects, WinISD projects and drivers, Hornresp records, measurements and other workspaces. - [Calculators](https://simulator.00aud.io/docs/guides/calculators.md): The six free 00 Simulator calculators: what each one answers, what they share with the simulator, and when to open the simulator instead. ## AI ### Use it - [What your assistant can do](https://simulator.00aud.io/docs/ai.md): What Claude, ChatGPT or another assistant can do with 00 Simulator: find drivers, build and simulate designs, show you graphs and check a build. - [Connect your assistant](https://simulator.00aud.io/docs/ai/connect.md): Add 00 Simulator to Claude, ChatGPT, Claude Code or another MCP client: the server URL, the steps for each app, and what you approve. - [Prompts that work](https://simulator.00aud.io/docs/ai/prompts.md): Prompts for your assistant with 00 Simulator: find a driver, design and compare boxes, fix a noisy port, check a build against a measurement. - [Watch it work live](https://simulator.00aud.io/docs/ai/live.md): What you see in 00 Simulator while your assistant works on an open workspace: its narration, the graphs it shows and marks, taking control and undoing it. - [What your assistant sees](https://simulator.00aud.io/docs/ai/what-it-sees.md): What a connected assistant can see and change in 00 Simulator, the permissions you approve, how to undo its changes and how to disconnect it. ### Reference - [Tools your assistant can call](https://simulator.00aud.io/docs/ai/tools.md): Every tool the 00 Simulator connector gives Claude, ChatGPT and other assistants, grouped by job, with what each one can change. - [Graph kinds](https://simulator.00aud.io/docs/ai/graph-kinds.md): The graphs your assistant can draw in the chat from a 00 Simulator run, what each one shows, and the tile that matches it in the app. - [Docs for assistants](https://simulator.00aud.io/docs/ai/docs-for-assistants.md): How assistants read the 00 Simulator docs: a Markdown twin of every page, llms.txt, llms-full.txt, and the connector’s own docs search. ## Reference - [Reference overview](https://simulator.00aud.io/docs/reference.md): Look up the controls, tiles, driver parameters and model limits in 00 Simulator. - [Tiles](https://simulator.00aud.io/docs/reference/tiles.md): Find the right simulator tile for response, limits, horn diagnostics, editing and comparison, with a guide to every tile. ### Tiles · response - [SPL (dB)](https://simulator.00aud.io/docs/reference/tiles/spl.md): How to read the SPL tile in 00 Simulator: the level each design plays at your power and distance, its F3 and F10 markers, EQ on the curve and baffle step. - [Transfer Function Magnitude](https://simulator.00aud.io/docs/reference/tiles/transfer-function.md): How to read the Transfer Function Magnitude tile in 00 Simulator: each design’s response shape against its own reference, with power taken out. - [Phase](https://simulator.00aud.io/docs/reference/tiles/phase.md): How to read the Phase tile in 00 Simulator: the acoustic phase of each design in degrees, including EQ and filters, and why the line jumps at ±180°. - [Group Delay](https://simulator.00aud.io/docs/reference/tiles/group-delay.md): How to read the Group Delay tile in 00 Simulator: how late each frequency arrives, in milliseconds, and what box, tuning and filters do to it. - [Impedance](https://simulator.00aud.io/docs/reference/tiles/impedance.md): How to read the Impedance tile in 00 Simulator: the load your amplifier sees, where the box and port tuning show, and why the lowest point matters. ### Tiles · limits - [Max SPL (dB)](https://simulator.00aud.io/docs/reference/tiles/max-spl.md): How to read the Max SPL tile in 00 Simulator: the loudest a design can play at each frequency before Xmax or its thermal limit, and the three thermal rules. - [Headroom](https://simulator.00aud.io/docs/reference/tiles/headroom.md): How to read the Headroom tile in 00 Simulator: your listening level and its peaks against cone travel, heat and port limits, and what the amplifier must supply. - [Excursion](https://simulator.00aud.io/docs/reference/tiles/excursion.md): Read peak cone travel against Xmax, identify unloading below a vented box’s tuning, and check what power and filters change. - [Port Velocity](https://simulator.00aud.io/docs/reference/tiles/port-velocity.md): How to read the Port Velocity tile in 00 Simulator: peak air speed in a vented box’s port against the warning line, and what to change when it chuffs. - [Port Velocity (Rear Chamber)](https://simulator.00aud.io/docs/reference/tiles/rear-port-velocity.md): Check the rear port of a sixth-order bandpass separately from its front port, using the same air-speed warning and power setting. - [Port Volume Velocity](https://simulator.00aud.io/docs/reference/tiles/port-volume-velocity.md): Distinguish the volume of air flowing through a port from its speed, and see why larger ports can keep the same flow while reducing noise risk. - [Cone Velocity](https://simulator.00aud.io/docs/reference/tiles/cone-velocity.md): Read peak cone speed, distinguish it from excursion and air speed, and recognise the slowing cone around a vented box’s tuning. - [PR Excursion](https://simulator.00aud.io/docs/reference/tiles/pr-excursion.md): Check each passive radiator’s travel against its own Xmax, and understand why count and added mass change both travel and tuning. - [Amplifier Load (VA)](https://simulator.00aud.io/docs/reference/tiles/amplifier-load.md): Read apparent power and RMS current demand, understand why VA differs from the input-power setting, and check amplifier peaks in Headroom. ### Tiles · horns - [Horn Editor](https://simulator.00aud.io/docs/reference/tiles/horn-editor.md): Shape the unfolded horn path in Drawing or Table view, then check what the change does to response, cone travel and local air motion. - [Fold](https://simulator.00aud.io/docs/reference/tiles/fold.md): Fit a horn path into a cabinet, read its geometry checks and compare the folded response before making the horn follow the fold. - [Horn Pressure](https://simulator.00aud.io/docs/reference/tiles/horn-pressure.md): Inspect RMS pressure and phase at stations inside a horn, distinguish internal pressure from listening SPL, and interpret pressure peaks with flow. - [Horn Particle Velocity](https://simulator.00aud.io/docs/reference/tiles/horn-particle-velocity.md): Inspect peak air speed at a horn station, find narrow passages, and compare both sides of driver entries without confusing it with cone speed. - [Horn Acoustic Impedance](https://simulator.00aud.io/docs/reference/tiles/horn-acoustic-impedance.md): Read local acoustic loading as pressure divided by volume flow, distinguish magnitude and complex components, and recognise zero-flow singularities. - [Horn Radiating Outputs](https://simulator.00aud.io/docs/reference/tiles/horn-radiating-outputs.md): Separate a horn’s radiating mouths, ports and exposed cones, and see where their phases make the coherent total add or cancel. ### Tiles · workspace - [Metrics](https://simulator.00aud.io/docs/reference/tiles/metrics.md): Rank visible designs by one measure, choose a frequency or band, and understand what a winning number does and does not establish. - [Insights](https://simulator.00aud.io/docs/reference/tiles/insights.md): Use the simulator’s rule-based design notes to find issues, inspect the relevant curves and test suggested changes. - [Compare](https://simulator.00aud.io/docs/reference/tiles/compare.md): Plot two quantities against frequency with separate vertical axes, and choose useful pairs for acoustic, mechanical and electrical comparisons. - [Schematic](https://simulator.00aud.io/docs/reference/tiles/schematic.md): Read how the driver, chambers, ports and horn paths connect, and edit the active design’s values directly in its acoustic schematic. - [EQ Editor](https://simulator.00aud.io/docs/reference/tiles/eq-editor.md): Edit filters directly on the SPL chart, select the correct enclosure or horn driver, and check the result on excursion and headroom. - [Baffle Layout](https://simulator.00aud.io/docs/reference/tiles/baffle-layout.md): Set a rectangular baffle and driver position for the baffle-step approximation, and inspect the resulting low-frequency shelf in SPL. - [T/S Parameters](https://simulator.00aud.io/docs/reference/tiles/ts-parameters.md): Inspect the selected driver, explore temporary parameter changes, and distinguish graph-only adjustments from editing saved driver data. ### More reference - [Controls and fields](https://simulator.00aud.io/docs/reference/controls.md): A field guide to enclosure size, port tuning, power, wiring, filters and environment in 00 Simulator. - [T/S parameters](https://simulator.00aud.io/docs/reference/ts-parameters.md): Driver parameter symbols, units, derivation relationships and limits used by 00 Simulator. - [Glossary](https://simulator.00aud.io/docs/reference/glossary.md): Plain definitions of loudspeaker, enclosure, horn and measurement terms used in 00 Simulator. - [Model and limits](https://simulator.00aud.io/docs/reference/model-and-limits.md): What 00 Simulator calculates, how the linear model treats boxes and horns, and which results still need measurements. - [Validation](https://simulator.00aud.io/validation/winisd) - [Changelog](https://simulator.00aud.io/changelog) ## Cookbook - [Cookbook](https://simulator.00aud.io/docs/cookbook.md): Worked sealed, vented and tapped-horn subwoofer examples with real simulation results and practical checks before a build. - [Vented 12-inch subwoofer](https://simulator.00aud.io/docs/cookbook/vented-subwoofer.md): Tune the vented subwoofer example, size its ports, check the duct length and protect the driver below tuning. - [15 L sealed subwoofer](https://simulator.00aud.io/docs/cookbook/sealed-subwoofer.md): Change the driver and power in a live 15 L sealed box, then compare bass output, system Q and cone excursion. - [Tapped horn subwoofer](https://simulator.00aud.io/docs/cookbook/tapped-horn.md): Drive the tapped-horn example harder, compare a high-pass filter and check cone excursion inside and below the useful band.