# 34c9 a MDD full range speakers.

**URL:** <https://community.volumio.com/t/34c9-a-mdd-full-range-speakers/10840>\
**Category:** Loudspeakers\
**Created:** [August 21, 2019, 8:36am UTC](https://community.volumio.com/t/34c9-a-mdd-full-range-speakers/10840 "2019-08-21T08:36:21Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![claudiogan](https://community.volumio.com/user_avatar/community.volumio.com/claudiogan/32/594_2.png) [@claudiogan](https://community.volumio.com/u/claudiogan)\
**Post date:** [August 21, 2019, 8:36am UTC](https://community.volumio.com/t/34c9-a-mdd-full-range-speakers/10840/1 "2019-08-21T08:36:21Z")

</div>

MDD (Multi Delays Diffraction) is an innovative technology for loudspeakers. MDD uses acoustic diffraction to emit coherent secondary sound waves, delayed by a few milliseconds at different points in space.

The 34c9 project is the first compact version made with MDD technology. Other features of the 34c9 project:

- zero internal acoustic reflections,
- sound insulation from the floor in the audio band,
- omnidirectional emission on the horizontal plane over the entire audio band,
- no damping material,
- 3FE25 speaker from Faital-Pro.

More information at links:  
[https://www.claudiogandolfi.it](https://www.claudiogandolfi.it)  
[https://www.claudiogandolfi.it/34c9.html](https://www.claudiogandolfi.it/34c9.html)  
[https://www.pinterest.it/pin/767582330223416318/](https://www.pinterest.it/pin/767582330223416318/)

Thanks for the attention  
Claudio  
 ![34c9 L 12.jpg](https://community.volumio.com/uploads/default/original/2X/d/db22df55108f2f54cb3efd33eea1d32409784da4.jpeg)  
 ![34c9 mic d 07.jpg](https://community.volumio.com/uploads/default/original/2X/7/71c72cfaa4baa5b349f9d59bcda414a39b494970.jpeg)  
 ![34c9 left Phase FR.jpg](https://community.volumio.com/uploads/default/original/2X/4/488590b711aed735b30a41cb60d4560825af52f8.jpeg)