Components - 2370A

2370A Flat-Front Bi-Radial® Horn

Key Features:

  • 90° x 40 ° nominal dispersion
  • Uniform horizontal on and off axis frequency response
  • Precise horizontal pattern control
  • Full horn loading to 630 Hz
  • Flat front, compact size, and lightweight construction
  • 25 mm (1 in) throat entry

The JBL Model 2370A is a compact Bi-Radial® horn with a nominal coverage pattern of 90° horizontal x 40° vertical. The horn provides uniform on and off axis frequency response in the horizontal plane from 630 Hz to beyond 16 kHz. The horn's small vertical mouth dimension was chosen to allow a gradual narrowing of the vertical coverage pattern with increasing frequency. This provides acoustic equalization of the frequency response of the horn in the horizontal plane and compensates for the falling power response of all compression drivers. Should constant vertical pattern control be required, two or more 2370As may be stacked to restore full Bi-Radial® performance.

The horn's exceptionally consistent horizontal dispersion eliminates the midrange narrowing and high frequency beaming problems typically associated with conventional horn designs. Additionally, the 2370A's highly predictable performance greatly simplifies cluster design. The need for horn overlapping is minimized and lobing and comb filter effects are virtually eliminated.

Horizontal Coverage: 90° ( + 10°,15°) 630 Hz 16 kHz
  69° 2 kHz
  42° 4 kHz
  28° 8 kHz
  21° 16 kHz
Directivity Index (D1): 10.9 dB ( + 2.6 -2.4)
Average Range: 1 kHz-16 kHz
Directivity Factor (Q): 12.2 ( + 10.1,-5.2)
Usable Low Frequency Limit: 500 Hz
Minimum Recommended Crossover Frequency: 630 Hz
Axial Pressure Sensitivity: (Measured on axis in the far field with 1 watt (2.83 V RMS, 8 ohms) input and referenced to 1 meter distance using the inverse square law. Listed sound pressure represents an average from 1 kHz to 4 kHz using the JBL Model 2425H driver ) 110 dB SPL, 1 W @ 1 m
Construction: Injection molded reinforced high-density solid polyurethane
Mouth Height: 173 mm (6.81 in)
Mouth Width: 445 mm (17.5 in)
Length: 174 mm (6.84 in)
Rear Height: 135 mm (5.31 in)
Rear Width: 400 mm (15.75 in)
BAFFLE CUTOUT REQUIRED: (Front mounting only)  
Height: 138 mm (5.44 in)
Width: 403 mm (15.88 in)
Net Weight: 1.4 kg (3 lb)
Shipping Weight: 2.3 kg (5 lb)
JBL continually engages in research related to product improvement. New materials, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.
Join Our Mailing List