Flagship 2-way LCR loudspeaker • dual 12" C4 woofers • D2430K dual 3" compression driver • HDI horn • patented CBAS enclosure • 94dB sensitivity • bi-wire, bi-amp & active operation • designed for large reference theaters
The JBL SCL-1 2-Way Dual 12-inch Custom LCR Loudspeaker is the flagship of the JBL Synthesis Custom Loudspeaker series, engineered for reference-level left, center, and right channel performance in large and extra-large home theaters. Designed for installation behind acoustically transparent projection screens or within custom cabinetry, the SCL-1 combines exceptionally high output capability with controlled directivity, low distortion, and the dynamic performance required to reproduce cinema soundtracks at demanding listening levels.
At the heart of the SCL-1 is JBL's patented D2430K dual 3-inch compression driver coupled to a large-format High-Definition Imaging (HDI) horn. Dual 12-inch Carbon Cellulose Composite Cone woofers provide powerful low-frequency and midbass reproduction while operating within JBL's patented Complementary Bass Alignment System enclosure. An installer-configurable crossover architecture supports conventional single-amplifier operation, bi-wiring, bi-amplification, or complete passive-crossover bypass for sophisticated fully active systems.
Key Features & Innovations
Flagship JBL Synthesis LCR design — the JBL SCL-1 2-Way Dual 12-inch Custom LCR Loudspeaker is engineered as a reference-grade left, center, or right channel for large and extra-large dedicated home theaters.
Patented D2430K compression driver — JBL's 3-inch dual annular Teonex ring-diaphragm compression driver uses dual voice coils and dual neodymium motor structures to deliver exceptional output capability with low distortion and precise high-frequency reproduction.
Large-format HDI horn — the D2430K compression driver is coupled to a precision-molded Sonoglass High-Definition Imaging horn engineered to provide broad, controlled dispersion throughout the listening area.
Dual 12-inch C4 woofers — two cast-frame 12-inch Carbon Cellulose Composite Cone woofers provide substantial output, dynamic midbass impact, and the effortless scale required for reference-level cinema reproduction.
Patented Complementary Bass Alignment System — JBL's CBAS enclosure architecture combines characteristics of sealed and vented designs to increase useful low-frequency output while helping maintain an amplifier-friendly impedance characteristic.
94dB sensitivity — high sensitivity allows the SCL-1 to produce substantial acoustic output and wide dynamic range when partnered with appropriately powerful amplification.
Installer-configurable crossover architecture — a front-panel configuration section allows the loudspeaker to operate with a single amplifier, bi-wired, bi-amplified, or with its passive crossover bypassed for use with an external active crossover.
Three-position high-frequency level control — dedicated settings compensate for operation with no grille, with the supplied grille, or behind an acoustically transparent projection screen.
Built for large-scale custom theaters — the heavily braced enclosure uses 1-inch-thick MDF and is specifically designed for installation behind projection screens or within purpose-built cabinetry.
Timbre matched to the SCL family — the SCL-1 is engineered to integrate with other JBL Synthesis Custom Loudspeakers, making it possible to maintain consistent tonal character throughout an immersive theater.
FAQ — JBL SCL-1
Is the JBL SCL-1 an in-wall speaker?
The SCL-1 is technically a fully enclosed in-room loudspeaker rather than a conventional open-back in-wall speaker. However, it is specifically engineered for custom installation behind acoustically transparent projection screens or inside purpose-built cabinetry, allowing it to become visually integrated into a dedicated theater.
Can the SCL-1 be used for the left, center, and right channels?
Yes. The SCL-1 is specifically designed as an LCR loudspeaker. Three matching SCL-1 speakers can therefore be used across the front soundstage to provide identical driver technology, output capability, dispersion, and tonal character for the left, center, and right channels.
How much amplifier power does the SCL-1 require?
JBL specifies a minimum recommended amplifier power of 500 watts RMS for both full-bandwidth operation and operation with an 80Hz high-pass crossover. The SCL-1 has a nominal 4-ohm impedance and is intended to be partnered with high-performance amplification appropriate for a reference-level theater system.
Can the SCL-1 be bi-amped?
Yes. The SCL-1 supports conventional single-amplifier operation, bi-wiring, and bi-amplification. Its internal passive crossover can also be bypassed completely for a fully active system using external DSP and crossover processing.
Why does the SCL-1 have a screen setting?
An acoustically transparent projection screen can slightly alter high-frequency energy before it reaches the listening area. The SCL-1 provides a dedicated high-frequency setting designed to compensate for installation behind a screen, along with separate settings for use with the grille or with no grille.
Which subwoofer is designed to complement the SCL-1?
JBL specifically designed the SCL-1 to complement the flagship SSW-1 subwoofer. The SCL-1 is also timbre matched with the broader JBL Synthesis SCL loudspeaker family for complete immersive theater systems.
Why Buy From Us
Authorized JBL Synthesis dealer offering 100% genuine products with full manufacturer warranty coverage
Expert JBL Synthesis theater design including LCR selection, amplification, surround and height-channel layouts, subwoofer integration, and system engineering
Professional installation, custom theater integration, speaker placement, processor configuration, Dirac calibration, and complete system optimization
Dedicated customer support for system planning, upgrades, configuration, and troubleshooting
