JBL Synthesis SCL-3 Two-Way In-Wall Speaker

The JBL Synthesis SCL-3 Two-Way In-Wall Speaker is a custom in-wall loudspeaker designed primarily for use as an LCR behind projection screens or as a height channel in ceiling applications.

It features JBL’s patented 2409H 1-inch (25mm) compression driver mated to a High-Definition Imaging (HDI™) horn. Dual 5.25-inch (130mm) Advanced Aluminum Matrix cone cast-frame woofers provide detailed and dynamic response with low distortion.


JBL Synthesis SCL-3 Two-Way In-Wall Speaker

The integrated MDF enclosure of the JBL Synthesis SCL-3 Two-Way In-Wall Speaker is designed for installation in standard 2×6 wood frame construction, and Internal connections allow for bi-wiring or bi-amplification in advanced installations. The SCL-3 is ideal for use in medium to large rooms.


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  • Molded Baffle with Integrated MDF Enclosure and Isolation Mounting System
  • Advanced Crossover Network with Bi-wire/Bi-amp Capability
  • Dual Gold-plated Spring-loaded Binding Post Input Terminals
  • Zero-bezel, Magnetically-attached Paintable Grille
  • Molded baffle with integrated MDF enclosure and isolation mounting system
  • Dual 8″ (200mm) low-profile, metal cone woofers



Speaker Type – Two-way In-Wall Loudspeaker
Low Frequency Transducer – Dual 5-¼” (130mm) cast-frame, advanced aluminum matrix cone woofers
Mid/High Frequency Transducer – D2-derived 1″ (25mm) 2409H annular ring, Teonex® diaphragm compression driver
Maximum Recommended Amplifier Power – 200 watts RMS
Frequency Response (-6dB on-axis) – 65 Hz – 33KHz
Coverage area (-6dB @ 20 KHz) – 90 x 60 deg, (-6dB @ 10 KHz)
Sensitivity (2.83V@1m) – 91dB
Nominal Impedance – 6 Ohm
Crossover Frequencies – 1.3 KHz
Enclosure type – Sealed In-Wall Mount with included back box
Inputs – Dual Gold-plated Five-way Binding Posts
Dimensions (H x W x D) – 16.46″ x 16.46″ x 6.01″ (418mm x 418mm x 153mm)
Weight – 24.3 lb (11.02 kg)
Finishes – Matte Black

Additional information

Weight 11.02 kg
Dimensions 15.3 × 41.8 × 41.8 cm

JBL Synthesis

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