ALD

The Future Of Loudspeaker Design
Antti Louhivaara Design

03/08/2026

My thoughts on how my design work has evolved over the years.

https://www.aldspeakers.fi/en/blog/ald-a10-the-evolution-of-design-theories-over-30-years/

03/07/2026

Our website is now live!

ALD is a design firm specializing in the latest and most advanced loudspeaker technology. You’ll find here the information on our history, design philosophy, and new models, as well as a blog where I plan to jot down a few things in the future.

Feel free to take a look:
In English: https://www.aldspeakers.fi/en/
In Finnish: https://www.aldspeakers.fi/

16/04/2026

We measured the distortion of the A10 at 100 dB levels from a distance of one meter:

Frequency D2 D3 D4
200 4,9 0,58 0,12
1k 0,42 0,21 0,015
5k 0,78 0,04 0,004

As you can see from the numbers, the resistance box loading at low frequencies (200Hz) somewhat increases the 2nd order distortion component, but otherwise the readings remain low.

That 100 dB level is really loud! I would have liked hearing protection here..😀

As you can see, the treble distortion with 3rd and 4th order distortion components remains almost non-existent. This is what happens when using first-class tweeters. I guess no one expected anything else..😉

Overall, the distortion components emphasize the 2nd order component, i.e. the first even component. In other words, the same as in tube amplifiers.

So the ALD A10 is a tube-sounding constant directional radiator with horizontal fan-shaped dispersion 🙂

14/04/2026

ALD A10 freefield responses to different angles. As you can see from the curves, the A10 behaves completely differently compared to traditional speakers.

Osoite

Kirkkonummi
02480

Nettisivu

http://www.aldspeakers.fi/

Hälytykset

Tiedä ensimmäisenä ja anna meille oikeus lähettää sinulle sähköpostitse uutisia ja promootioita ALD :ltä. Sähköpostiosoitettasi ei käytetä muihin tarkoituksiin, ja voit perua milloin tahansa.