Media room LCR
Useful when a clean architectural finish is needed without abandoning controlled directivity.
JBL SYNTHESIS · IN-WALL LCR / SURROUND
SCL-4
A sealed two-way 7-inch in-wall loudspeaker with JBL’s 2409H compression driver and HDI horn.
ARCHITECTURAL CINEMA
RoleLCR / surround
ArchitectureCompression driver + HDI
Response45 Hz–33 kHz (-6 dB)
Sensitivity91 dB
PRODUCT GALLERY
See the product from more than one perspective.
Official manufacturer imagery showing the enclosure, installation form or design detail.
WHY IT EXISTS
A compact architectural speaker with real cinema engineering behind it.
The SCL-4 is designed for medium-to-large rooms and can function as LCR or surround. The included back box and relatively shallow depth make its performance more predictable than many open-back architectural speakers.
Its HDI horn and compression driver are the defining elements: the goal is controlled coverage and dynamic capability, not merely hiding the speaker in a wall.
SYSTEM ROLE
Where it fits in a cinema.
Surround channel
Can provide a matched SCL surround solution.
Bi-wire / bi-amp
Installation supports advanced amplification options where required.
ROOM DESIGN
Choose the room conditions before choosing the quantity.
Mounting heightUse the acoustic axis and seating height, not the grille centre, as the placement reference.
CoverageThe room should be laid out around the speaker’s real dispersion.
Sub crossoverDo not assume 45 Hz response means the speaker should run full range in a cinema.
PUBLISHED SPECIFICATION
Useful numbers, in context.
Frequency response45 Hz–33 kHz (-6 dB)
Sensitivity91 dB / 2.83 V / 1 m
Nominal impedance6 ohm
Recommended powerUp to 200 W RMS
Dimensions636 × 409 × 93 mm
Manufacturer specifications should be confirmed against the current data sheet before final project specification.
RELATED JBL Synthesis PRODUCTS
SCL SeriesSCL-1A large-format dual-12-inch custom LCR built for very large cinemas, using a D2430K compression driver on an HDI horn.SCL SeriesSCL-2A 2.5-way triple-8-inch in-wall speaker with a compression driver and HDI horn for high-output LCR or surround use.SCL SeriesSCL-5A two-way 7-inch in-ceiling member of the SCL family for immersive height channels and architectural cinema applications.
MANUFACTURER REFERENCE
Confirm current product data before specification.
This page is a specialist design overview rather than a substitute for the manufacturer installation manual or current data sheet.
Official manufacturer information reviewed for this page.PROJECT-SPECIFIC ADVICE
Specify SCL-4 in the context of the room.
Send the room dimensions, seating plan, screen width, target layout and intended listening level.