Screen Array JBL 3678

JBL-SA-3000-3678

Screen Channel System

The 3678 screen channel system can be used in either the passive mode or in a bi-amplified system. THX®-approved for THX system applications.

 

 

   

Features:

circle green Low Frequency Transducer: One 380 mm (15 in) low frequency driver.
circle green High Frequency Transducer: 25 mm (1 in) horn throat diameter, 44 mm

   (1.75 in) pure titanium diaphragm compression driver.

circle green Flat power response 100° x 100° Bi-Radial® horn.
circle green Operable in bi-amp or passive mode.

circle green Includes adjustable bracket for horn aiming.
circle green Shallow profile cabinet minimizes behind-screen space requirements.
circle green THX® - approved for THX system installations (biamplified only).

 

Specifications:
Frequency Range :

30 Hz to 20 kHz (-10 dB)

Frequency Response:

45 Hz to 12 kHz (+/- 3 dB)

Pow er Capacity (Continuous Pink
Noise):

300 W Passive HF: 50 W Bi-Amp LF:600 W Bi-
Amp

Sensitivity:

98 dB (1W, 1m)

Nominal Impedance: 8 Ohms
Crossov er Frequency: 1 kHz
Nominal Coverage:

90° Horizontal, 90° Vertical

Half-Space Reference Efficiency: 3.3%
Maximum Acoustic Power Output:

8 Acoustic W (Sine Wave Input)

System Polarity:

Positive Voltage to RED produces forward cone
motion

Input Connectors:

Barrier Strip Screw Terminals

Dimensions (H x W x D):

1019 (w/horn) x 651 x 292 mm
(40.125 (w/horn) x 25.625 x 11.5 in)

Net Weight:

 

EIA (Positive voltage to RED terminal gives
forward cone motion)

 

Low Freq Transducer Nominal
Diameter:

250 mm (10 in)
64 mm (2.5 in) voice coil

High Freq Transducer Nominal
Diameter:

25 mm (1 in)
38 mm (1.5 in) voice coil

Dow nw ard Firing Angle:

 

Nominal 20° when mounted flush on back
panel

Enclosure Material:

Textured Black H.I.P.S. Plastic 

Grille Color:

 Black

Input Connectors:

 5-way binding posts

Dimensions (H x W x D):

 

457 mm x 457 mm x 260 mm
18 in x 18 in x 10.25 in

Net Weight:

41 kg (90 lb)

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