WinISD golden dataset
93%
of 6,358 comparison points agree within tolerance across 50 WinISD projects: Sealed, Vented, 4th-order bandpass, and 6th-order bandpass boxes, on up to 9 graph metrics each.
- Within tolerance 5,911
- Watch 277
- Outside 170
WinISD alternative · Free · No install
A WinISD alternative that runs in your browser.
00 Simulator opens your WinISD driver and project files on a Mac, Linux or Windows computer, models the same sealed, vented and bandpass boxes, and publishes how its results compare with WinISD’s, including where they differ.
- Opens .wdr and .wpr
- Exports .wpr
- No account needed
Sealed standmount midwooferDayton Audio RS180P-4 · 55 W · half space · 1 m
00 SimulatorWinISD
- Type
- Sealed
- SPL within tolerance
- 18 of 18 frequencies
- Largest SPL difference
- 0.4 dB at 500 Hz
Looking for WinISD itself?
WinISD is free Windows software by Juha Hartikainen, available from its official site. If it already runs well for you, keep using it: it has a long track record, and it is the reference 00 Simulator checks its own results against.
On a Mac or Linux, people run it through Wine-based tools or a Windows virtual machine. 00 Simulator is for when you would rather open the same files in a browser. It is not affiliated with WinISD or its author.
linearteam.orgYour files
Bring your WinISD files with you.
Driver and project files open straight into the simulator. Here is exactly what carries across, and what does not.
- .wdr
Driver files, in and out
Import one WinISD driver file or several at once into your component library, and export any driver back to .wdr. You can also paste a spec sheet, import a Unibox spreadsheet or pick from 3,200+ library drivers.
- .wpr
Open WinISD projects
Sealed, vented, 4th-order and 6th-order bandpass projects open with their driver, box volumes, tuning, vents, driver count, input power, series resistance and filters. They are added to your current project, so you can compare them with what is already there.
What changes
- Other box types open as vented, with a warning.
- Vents open as round ports.
- The file’s radiation space and listening distance are not read, so imported boxes use your project’s settings. Box losses, temperature and air conditions are not read either.
- High- and low-pass filters open as Butterworth, and their Q is not read. Linkwitz transform and parametric EQ filters carry across. Other filter types are skipped, with a warning.
- .wprBeta
Export back to WinISD
Export sealed, vented and bandpass enclosures as WinISD projects, one file per enclosure, bundled in a single .zip.
What changes
- Passive-radiator and horn designs do not export.
- High- and low-pass filters are written as Butterworth, so Linkwitz-Riley and Bessel alignments are lost, with a warning.
- Shelf filters and switched-off filters are left out.
- Box losses and air conditions are written as fixed defaults.
Accuracy
How close is it to WinISD?
50 WinISD projects were rebuilt in 00 Simulator and compared at 18 frequencies on up to 9 graphs each. Every result is published, including each point that disagrees.
By graph
| Graph | Points | Within tolerance | Watch | Outside |
|---|---|---|---|---|
| Sound pressure level | 875 | 95.4% | 24 | 16 |
| Transfer function magnitude | 854 | 95.9% | 19 | 16 |
| Maximum SPL | 891 | 99.7% | 3 | 0 |
| Cone excursion | 900 | 79.2% | 106 | 81 |
| Amplifier impedance | 900 | 95.1% | 36 | 8 |
| Transfer phase | 528 | 92.2% | 19 | 22 |
| Group delay | 528 | 97.9% | 10 | 1 |
| Front port air velocity | 396 | 93.2% | 20 | 7 |
| Rear/main port air velocity | 486 | 87.9% | 40 | 19 |
By box type
- Sealed96.9%
- Vented93.2%
- 4th-order bandpass92.4%
- 6th-order bandpass89.4%
Where they disagree.
The largest group of points outside tolerance is cone excursion at low frequencies in vented and bandpass boxes. This project is the one where SPL differs most: 15.4 dB at 10 Hz. The gap narrows as frequency rises, and from 25 Hz up the two agree within tolerance.
Phase and group delay are compared only within 15 dB of the peak, and for projects with several drivers WinISD’s impedance is scaled to the combined load before comparing.
These are comparisons between two simulators, not measurements of built cabinets, and both depend on the driver data you start from. The published figures come from the report of 16 September 2026, generated against 00 Simulator 1.4.0.
Vented Peerless SLS compactPeerless SLS-P830669 · 160 W · half space · 1 m
00 SimulatorWinISD
- Type
- Vented
- SPL within tolerance
- 14 of 18 frequencies
- Largest SPL difference
- 15.4 dB at 10 Hz
Graphs
The graphs you know from WinISD, and where to find them.
Each WinISD graph in the table has a counterpart in 00 Simulator. All but amplifier apparent load are compared in the validation report. The simulator also shows:
- Headroom, with amplifier insights on what limits the output.
- Passive-radiator excursion, cone velocity and port volume velocity.
- EQ and filters you drag directly on the SPL and excursion graphs.
- A schematic of each box, next to its graphs.
- Your own REW measurements (.txt, .frd, .zma, .csv), overlaid on the simulation.
- Particle velocity, pressure and acoustic impedance inside horn paths, covered on the horn simulation page.
| In WinISD | In 00 Simulator |
|---|---|
| SPL | SPL |
| Transfer function magnitude | Transfer Function Magnitude |
| Transfer function phase | Phase |
| Maximum SPL | Max SPL |
| Cone excursion | Excursion |
| Group delay | Group Delay |
| Amplifier impedance | Impedance |
| Amplifier apparent load (VA) | Amplifier Load (VA) |
| Front and rear port air velocity | Port Velocity and Port Velocity (Rear Chamber) |
No install
Works wherever you have a browser.
- Mac, Linux and Windows
- It runs in a modern desktop browser, with a layout for phones and tablets too. There is nothing to install and no Windows licence to find.
- Start without an account
- Open the simulator and begin. A free account adds cloud workspaces with version history, and the connection for AI assistants.
- Share a link, not a file
- Send a design as a link that opens in the browser. A guest link is public and listed in the gallery straight away; with an account it starts as a private draft.
Enclosure types: sealed, vented, passive radiator, 4th- and 6th-order bandpass, and horns. Not modelled: transmission lines, dipoles, and isobaric or push-pull driver arrangements. Read the limitations.
FAQ
Switching from WinISD.
Is there a WinISD for Mac?
Not a native one. WinISD is Windows desktop software, and Mac users usually run it through a Wine-based tool or a Windows virtual machine. 00 Simulator is a separate, free tool that runs in the browser on a Mac and opens the same .wdr driver files and .wpr project files. It is not affiliated with WinISD or its author.
Will a project export back to WinISD exactly?
Not always. WinISD export is in beta and covers sealed, vented and bandpass enclosures. Passive-radiator and horn designs stay in 00 Simulator, Linkwitz-Riley and Bessel filters are written as Butterworth, and box losses use fixed defaults.
How close are the results to WinISD?
Across 50 WinISD projects, 93% of 6,358 comparison points agree within tolerance and 170 fall outside it. The largest group of disagreements is cone excursion at low frequencies in vented and bandpass boxes. Every point is published on the validation page.
Will my WinISD files open?
Driver files open in full. Sealed, vented and bandpass projects open with their boxes, vents, power and filters. Other box types open as vented, vents become round ports, and the file’s radiation space, box losses and filter Q are not read. Warnings flag the bigger changes, such as unsupported box or filter types.
Can I model passive radiators and bandpass boxes?
Yes, along with sealed and vented boxes and horns. Passive-radiator designs cannot be exported back to a WinISD project.
Can I share a design without sending a file?
Yes. A share link opens the design in the browser. A guest link is public and appears in the gallery straight away. With a free account, a link starts as a private draft that you can publish, hide or revoke.
Open your first WinISD project in the browser.
Open the simulatorChoosing between the two? WinISD vs 00 Simulator sets out where each tool is the better fit.