18 -sound XR1496C Constant Coverage HF Horn

Beschrijving

Key features

• • 1.4 throat inch entry
  • Aluminum construction for excellent heat transfer
  • Uniform on-axis and off-axis frequency response
  • 90? x 60? horizontal and vertical constant coverage
  • Very low distortion at high sound pressure
  • Improved compression driver cooling
  • Rotatable structure

Description

The XR1496 has been designed in order to obtain a smooth frequency
response maintaining constant coverage and directivity pattern, and
avoiding the midrange narrowing effect as well as high frequency
beaming problems.
With
a throat entry of 1.4 inch, the XR1496 has been developed to reach the
optimum performance when it will coupled with 1.4 inch exit Eighteen
Sound high frequency compression drivers.
The low pressure injected aluminum construction brings the following advantages:
–
thermal: aluminum horns are capable to reduce up to 30?C the steady
state compression driver working temperature at full power, when
compared to an equivalent size plastic horn. This reflects in a lower
power compression ratio (down to 1dB) as well as higher driver power
handling (30% higher);
– mechanical: no need for any mechanical
support for the compression driver (like brackets), avoiding the issue
of horn resonance with optimum waterfall and impulse system behavior.
The
XR1496 maintains nominal 90? Horizontal x 60? Vertical pattern control,
providing consistent on-axis and off-axis frequency response from
1,2kHz to 16kHz in both horizontal and vertical planes.
Horn directivity is constant down to 1,2kHz.