Haut-parleur JBL 2152H
[2152H-8+8] Avis/Critiques

Les haut-parleurs coaxiaux JBL combinent des membranes spéciales et des éléments HF spécialement étudiés pour procurer une réponse en fréquence sans accident.
Le 2152H utilise une architecture de pavillon Bi–Radial®, ainsi que le moteur haute fréquence JBL 2416H, permettant de générer un fort niveau de pression acoustique et de maintenir linéaire la réponse en fréquence avec une dispersion HF de 90°.

Points forts :

-44 mm (1.75 in) Pure Titanium Diaphragm HF Compression Driver
-Flat-Front Bi-Radial® HF Horn
-Sensitivity: 102 dB SPL 1 W, 1 m (3.3 ft)
-Power Capacity: 150 W IEC Pink Noise
-Integral Transformer Mounting Bracket

SYSTEM:

Frequency Range ( - 10 dB): 70 Hz - 17 kHz
Power Ratingl: 150 W continuous pink noise
Sensitivity 2: 102 dB, 1 W (2.83 V) 1 m (3.3 ft)
Nominal Impedance: 8 ohms
Crossover Frequency: 1.5 kHz
LOW FREQUENCY TRANSDUCER:
Nominal Diameter: 300 mm (12 in)
Voice Coil Diameter: 76 mm (3 in)
Magnet Weight: 1.45 kg (3.2 lb)
Sensitivity 3: 101 dB, 1 W (2.83V), 1 m (3.3 ft)

HF COMPRESSION DRIVER/HORN:

Nominal Diameter: 44 mm (1.75 in)
Voice Coil Diameter: 44 mm (1.75 in)
Magnet Weight: 1.39 kg (3.1 lb)
Sensitivity 4 110 dB, 1 W (2.83 V), 1 m (3.3 ft)
Dispersion Angles: 90° Nominal

GENERAL:

Polarity: Positive voltage to ( + ) terminal on network
input gives forward L.F. cone motion
Input Terminations: Female crimp-on and wire nuts supplied
Transformer Mounting: Integral mounting plate on LF frame
Recommended Enclosure Volume: 711(2.3 cu ft)
System Net Weight: 9.5 kg (21 lb)

(1) Rating based on test signal of filtered random noise conforming to the international standard IEC 268-l (pink noise with
12 dB per octave rollof below 40 Hz and above 5000 Hz with a peak-to-average ratio of 6 dB), 2 hours duration.
(2) Averaged from 500 Hz to 2.5 kHz
(3) Averaged from 100 Hz to 500 Hz
(4) Averaged from 2 kHz to 10 kHz
(5) Included by - 6 dB down points, averaged between 1 kHz and 10 kHz

Paramètres Thiele and Small :

Fs: 85 Hz
R e 4.5ohms
Qts: 0.39
Qes: 0.44
Vas: 37 l(1.3 ft3)
Sd: 0.053 m2 (82.15 in2)
Xmax: 2.5 mm (0.1 in)
Vn: 133 cm3 (8 ins)
Le: 0.5 mH
qo (Half space): 5.1%
Pe (Max): 150 W

MOUNTING INFORMATION:

Overall Diameter: 311 mm (12 ¼ in)
Bolt Circle Diameter: 294 mm (11 9/16 in)
Baffle Cutout Diameter (rear mount): 280 mm (11 1/6 in)
Baffle Cutout Diameter (front mount): 279 mm (11 in)