Drivers: Seas L21RNXP, Tang Band W3-1364s (bamboo fibre cone)
Frequency: 40Hz-20kHz. Designed to be listened near field (ie. not much SPL).
Build process here.
The speakers are really small as seen above. Very pleasing.
About the bass... the optimum compromise between distortion, listening level, and excursion is 40Hz. That's pretty deep, dipole or not. The woofers are working hard. Some 30Hz can be felt but not respectable. Below 30Hz is just asking for trouble. These metal cone makes horrible sound when bottomed. It's simply just physics and there is no way I could get more, except putting again a pair of 15" on my desk.
The distance to rear wall is about 35cm. I could not hear any faults. Phantom image is convincing, almost like the speakers making no sound and the music comes out from behind the wall.
I have small clip taken using my mobile phone in YouTube.
- Migrate ASP to DSP
- Baffle strengthening
- To document the project