Pavillon à directivité constante Beyma TDWL4
[TDWL4] Avis/Critiques

This horn has been designed to work specifically with two Beyma WL-4 wave guides providing uniform on and off-axis response. The constant directivity characteristics of this model ensure the ability to cover 90o wide horizontally and 20o wide vertically, at virtually any frequency within its operational range. To ensure freedom of resonance, this flare is constructed of cast aluminium, with flat front finish to facilitate flush mounting.

Key Features :
Designed to be used with two WL-4 wave guides
It provides uniform response, on and off-axis with a neutral and natural frequency reproduction
Coverage angles of 90o in the horizontal plane and 20o in the vertical plane
Precise directivity control in the pass band
Cast aluminium construction
 
Technical Specifications :
Throat dimensions (WxH) 36 mm. 1.4 in.
Horizontal beamwidth 90º (+4º -30º) (-6 dB, 0.63 - 16 kHz)
Vertical beamwidth  40º (+22º -9º)
(-6 dB, 1.6 - 16 kHz)
Directivity factor (Q)  12.5 (average 0.63 - 16 kHz)
Directivity index (DI)  11 dB (+2.6 dB, -3.2 dB)
Cutoff frequency  800 Hz
Dimensions (WxHxD) 250 x 280 x 220 mm.
Cutout dimensions (WxH) 215 x 245 mm.
Net weight  1.2 kg.
Shipping weight  2 kg.
Construction:  Cast aluminium.