SKU: 51562992005

JBL Synthesis SCL-4 In-wall Speaker

Sale price$3419.55 Regular price$3799.50
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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

  • 7” (180mm) cast-frame, advanced aluminium matrix cone woofer with large ferrite low-distortion motor structure
  • D2-derived 1" (25mm) 2409H annular ring diaphragm Teonex® compression driver
  • Patented High-Definition Imaging (HDI™) technology provides elevated performance in combination with patented D2-Series compression driver.
  • Design can be installed in any orientation, for maximum installation flexibility
  • Ideal for LCR or surround channel use
  • Patent Pending extended range L-Bracket mounting system
  • Low resonance, well-damped MDF wood rear enclosure
  • High-performance passive network utilizing all air-core inductors, polypropylene capacitors
  • Zero-bezel, magnetically-attached grille
  • 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:
  1. 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
SKU: 51562992005

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rkab8745
Fort Morgan, US
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
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Reviewed in the United States on April 24, 2026
A
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Amazon Customer
Pawtucket, US
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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Reviewed in the United States on April 29, 2026
C
Verified Purchase
Christopher D. Bodirsky
Lowell, US
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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Reviewed in the United States on April 27, 2026
B
Verified Purchase
Britincali
Draper, US
★★★★★ 5
Upgrade from OEM
After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.
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Reviewed in the United States on February 11, 2026
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ANDRES FIGUEROA
Belleville, US
★★★★★ 5
Very good
The best quality. Runs like new again.
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Reviewed in the United States on March 12, 2026

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