Screen Array JBL 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.





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).


Frequency Range :

30 Hz to 20 kHz (-10 dB)

Frequency Response:

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

Pow er Capacity (Continuous Pink

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


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

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

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

High Freq Transducer Nominal

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

Dow nw ard Firing Angle:


Nominal 20° when mounted flush on back

Enclosure Material:

Textured Black H.I.P.S. Plastic 

Grille Color:


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)

Související články: