Grand Cinema, next generation big horn

Grand Cinema line up

Grand Cinema is a solution for big room and long range listening position with a coverage of 80° horizontal and 60° vertically. Walls can be used as profile extensions.

Thanks to X-Shape style throat and heavy FEA simulation the horn is compose of two part :

The throat, here in PLA, can be in any color, PLA or MJF, 1.4" or 1.5":

And the profile that is just a simple curve, to allow shipping the throat can be shipped alone with the plan, by email, of two simple curves (vertical and horizontal), that will give a profile fitting the provided throat.

Thanks to this shipping cost and price can be lower as if we do the entire horn, of course we can do the entire horn if needed.

There is no size limit, from 30 to 200cm, anything is possible, price is not dependent on size when the throat + plan is shipped.

Constant directivity without diffraction behavior and loading capacities

Here is the measurement for a 50cm version :

Measurements are from 300hz to 20kHz, with a 18Sound ND3T, the accident in HF is due to Ti diaphragm breakup, not to the horn.

Horizontal:

Vertical:

Response (grey) and DI (red):

Compared with other solutions like JBL 2360, Manta-Ray horn or first generation “CD” horns

We can compare it with some other big full range horn like the JBL 2360A or JBL 2365A.

The JBL 2360A was the last big representative in date of the big familly of Manta-Ray horn then Quadratic-wave and “CD” diffraction horns.

We can see midrange narrowing on this 2360, a lot of midrange beaming too and diffractions (dark red) from 1 to 15 Khz. All theses defaults aren’t present on Grand Cinema.

Features

• Respect ADAPT principle (Acoustic Constant Directivity Adapted to Psychoacoustic Technology)

• Constant directivity behavior : Horizontal 80° Vertical 60°(can be change on demand)

• Real loading capacity

• End of profile optimized for removing midrange narrowing

• Throat 1.4" and 1.5"

• Dimensions on demand from 30cm with the same throat

Usage and price :