JBL 3677
JBL 3677

JBL 3677 Screen Channel System. The 3677 screen channel system provides natural sound quality for music and dialog in small cinema applications with convenient all-in-one enclosure.

  • Low Frequency Transducer: One 380 mm (15 in) low frequency driver.
  • High Frequency Transducer: 25 mm (1 in) horn throat diameter, 44 mm (1.75 in) pure titanium diaphragm compression driver.
  • 90° x 40° Flat-Front Bi-Radial® horn.
  • Newly designed passive network with driver protection circuit.
  • All in one enclosure for simple installation.
  • Shallow profile cabinet minimizes behind-screen space requirements.

Frequency Range

40 Hz to 20 kHz (-10 dB)

Frequency Response

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

Power Capacity (Continuous Pink Noise)

250 W


99 dB (1W, 1m)

Nominal Impedance

8 Ohms

Crossover Frequency

1.2 kHz

Nominal Coverage

90° Horizontal, 40°Vertical

Half-Space Reference


Maximum Acoustic Power Output

7 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)

65 x 651 x 292 mm
(30.125 x 25.625 x 11.5 in)

Net Weight

39 kg (85 lb)

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Our office hours are 9:30am-5:30pm weekdays — please drop by, call us or fill in the contact form so we can reply to you shortly.

Magna-Tech Electronic Co., Inc.
329 Palermo Ave. 1st Floor
Coral Gables, FL 33134-6601 USA
Phone: (305) 573-7339
Fax: (305) 573-8101
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