Terms of Service
Last updated 29 August 2026
The short version
- DIY Sounds is free, and provided as-is.
- The numbers are predictions, not measurements. Check them before you cut wood or power a driver.
- You keep ownership of the designs you publish. Marking one copyable lets other people use and adapt it.
- Be decent to other builders. We can remove content and accounts that are not.
- You are responsible for what you build and how you use it.
1. Agreement
These terms are between you and the operator of DIY Sounds (diysounds.com), and apply whenever you use the site — with or without an account. If you do not accept them, please do not use the site.
Our Privacy Policy forms part of these terms.
2. What DIY Sounds is
A free tool for designing loudspeaker enclosures: it estimates driver parameters, models enclosure behaviour, draws a cabinet and produces a cut list. There is also a community area where people can publish designs and discuss them.
It is offered free of charge, with no subscription and no advertising. We may change, limit or discontinue any part of it at any time.
3. The engineering disclaimer
Read this one properly. Everything DIY Sounds produces is a prediction from a model, not a measurement of a real object, and the community's designs are the untested work of other members of the public.
The driver estimator infers Thiele/Small parameters from a description of a driver. Those are informed estimates, and a real driver will differ — often substantially. Enter measured parameters from your driver's datasheet whenever accuracy matters.
The enclosure solver models idealised behaviour. It does not fully account for the material you build from, how well it is braced, leaks, damping, the acoustics of the room or vehicle, the amplifier driving it, or how the driver behaves when hot or near its limits. Response curves and coverage maps are free-field predictions: read their shape, not their absolute level.
Cut lists and dimensions are generated from a model. Check every dimension against your own measurements and your actual material before cutting anything. We are not responsible for wasted material or for a cabinet that does not fit.
Building enclosures involves power tools, and driving loudspeakers involves electricity and sound pressure that can damage hearing and equipment. You are solely responsible for working safely, for complying with any regulations that apply where you are — including those covering vehicle installations — and for the consequences of anything you build.
4. Your account
You need an account only to publish, comment or like, and accounts are created through Google Sign-In. You must be at least 13 years old to create one.
You are responsible for what happens under your account. Keep your Google account secure, and tell us if you think yours has been misused. You may stop using your account at any time and ask us to delete it.
5. Your designs and your content
You own what you make
Designs, descriptions and comments you publish remain yours. We claim no ownership of them.
What you allow us to do
By publishing or posting, you grant us a non-exclusive, worldwide, royalty-free licence to store, reproduce and display that content for the purpose of operating the site and showing it to other users. This licence ends when you delete the content, apart from copies retained briefly in backups.
The copy setting
When you publish a design you decide whether other people may copy it into their own projects.
- Copying allowed. You grant every other user a non-exclusive, worldwide, royalty-free licence to copy the design, modify it, build from it and use it — including for their own commercial work. You cannot withdraw that licence for copies already made. Turning the setting off later stops new copies, but does not reach existing ones.
- Copying not allowed. Other users may view your design, its figures and its discussion, but may not obtain the design data itself through the site. This is enforced on our server. It is not, however, a guarantee against someone reproducing your work from what is displayed.
What you promise about your content
By publishing or posting, you confirm that:
- It is yours to share, or you have permission to share it.
- It does not infringe anyone's copyright, trade mark or other rights.
- It is not unlawful, and does not contain anyone's private information.
6. How to behave here
This is a community of people building things. Do not:
- Harass, threaten, demean or abuse anyone.
- Post hateful content, or content targeting people for who they are.
- Post spam, advertising, or repetitive promotional content.
- Impersonate anyone, or misrepresent your connection to a person or company.
- Publish someone else's design as your own.
- Post malicious code, or content designed to break or abuse the site.
- Attempt to gain unauthorised access to the site, other accounts, or design data that has not been shared for copying.
- Scrape or bulk-download the site's content, or use automated means to place load on it.
- Use the site to break the law.
Disagreeing with someone's design is fine and useful; that is what the comments are for. Being unpleasant about it is not.
7. Moderation
We may remove any content, or suspend or delete any account, that breaks these terms — with notice where practical, and without it where the content is harmful or unlawful. Design authors may also delete comments on their own designs.
If you believe content here infringes your copyright, email us with enough detail to identify it and we will look into it. If you think we removed something wrongly, email us and say so.
8. Availability
We make no promise that the site will be available, uninterrupted, or free of errors. It may go down, lose data, or be discontinued.
Because the calculator saves projects in your own browser rather than on our servers, your local projects are not backed up by us and cannot be recovered by us. Export anything you would be upset to lose.
9. Disclaimer of warranties
DIY Sounds is provided "as is" and "as available", without warranties of any kind, whether express or implied, including any implied warranties of merchantability, fitness for a particular purpose, accuracy, or non-infringement.
We do not warrant that the calculations are accurate, that a design will perform as predicted, or that content published by other users is correct, safe or buildable.
10. Limitation of liability
To the fullest extent permitted by law, we are not liable for any indirect, incidental, special, consequential or punitive damages, nor for any loss of data, materials, profits, equipment, or hearing, arising from your use of DIY Sounds or anything you build using it.
Where liability cannot lawfully be excluded, it is limited to the greater of the amount you paid us in the previous twelve months (which, this being free, is nothing) or USD 50.
Some jurisdictions do not allow certain exclusions, so parts of this section may not apply to you. Nothing here limits liability for death or personal injury caused by negligence, or for fraud.
11. Indemnity
You agree to indemnify us against claims, losses and reasonable legal costs arising from content you publish, from your breach of these terms, or from your infringement of anyone else's rights.
12. Changes to these terms
We may update these terms. We will change the date at the top, and for material changes we will say so on the site. Continuing to use DIY Sounds after a change means you accept the updated terms.
13. General
If any provision of these terms is found unenforceable, the rest remain in force. Our not enforcing a provision at some point does not waive it. These terms are the entire agreement between us about the site.
These terms are governed by the laws of the Republic of the Philippines, and the courts there have jurisdiction over any dispute — without depriving you of any protection given by the mandatory law of the country where you live.