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Description
JBL Synthesis SCL-4 In-wall SpeakerThe SCL 4 is a custom in wall loudspeaker designed for use as an LCR or surround channel in a variety of applications. It features JBL's patented 2409H 1 inch (25mm) compression driver mated to a High Definition Imaging (HDI) horn. A 7 inch (180mm) Advanced Aluminium Matrix cone cast frame woofer provides detailed and dynamic response with low distortion. The integrated MDF enclosure is designed for installation in standard 2x4 wood frame
The SCL-4 is a custom in-wall loudspeaker designed for use as an LCR or surround channel in a variety of applications. It features JBL's patented 2409H 1-inch (25mm) compression driver mated to a High-Definition Imaging (HDI™) horn. A 7-inch (180mm) Advanced Aluminium Matrix cone cast-frame woofer provides detailed and dynamic response with low distortion. The integrated MDF enclosure is designed for installation in standard 2x4 wood frame construction, and Internal connections allow for bi-wiring or bi-amplification in advanced installations. The SCL-4 is ideal for use in medium to large rooms.
SCL-4 Highlights
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7” (180mm) cast-frame, advanced aluminium matrix cone woofer with large ferrite low-distortion motor structure
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D2-derived 1" (25mm) 2409H annular ring diaphragm Teonex® compression driver
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Patented High-Definition Imaging (HDI™) technology provides elevated performance in combination with patented D2-Series compression driver.
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Design can be installed in any orientation, for maximum installation flexibility
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Ideal for LCR or surround channel use
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Patent Pending extended range L-Bracket mounting system
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Low resonance, well-damped MDF wood rear enclosure
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High-performance passive network utilizing all air-core inductors, polypropylene capacitors
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Zero-bezel, magnetically-attached grille
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Dual binding post inputs for bi-wire or bi-amplified connections
General Specifications
| Speaker Type | Two-way In-Wall Loudspeaker |
|---|---|
| Low Frequency Transducer | 7” (180mm) cast-frame, advanced aluminium matrix cone woofer |
| 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) | 45 Hz – 33KHz |
| Coverage area (-6dB @ 20 KHz) | 100 x 100 deg, (-6dB @ 10 KHz) 120 x 120 deg (Hor x Vert) |
| 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) | 25" x 16.1" x 3.7" (636mm x 409mm x 93mm) |
| Weight | 27.6 lb (12.51 kg) |
| Finishes | Matte Black |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026
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