SICA 4 L 1 SL – 8 4″ Professional Bass-mid woofer

€57.95

The SICA 4 L 1 SL 8 is a robust 4-inch speaker driver engineered for both professional and demanding DIY audio applications. With a nominal power handling of 60 W AES and a continuous program power of 120 W, this compact yet powerful driver is perfect for a variety of audio projects. Its waterproof treated paper cone, neodymium magnet, and balanced magnet circuit ensure consistent performance, making it a reliable choice for high-fidelity sound reproduction in both indoor and outdoor environments.

4 in stock

SKU: 4 L 1 SL - 8 Categories: , ,
Description

Highlights of the SICA 4 L 1 SL 8

  • 1-inch Epotex voice coil former for enhanced thermal stability and durability
  • Waterproof cone treatment for reliable operation in humid or outdoor settings
  • Balanced neodymium magnet circuit for reduced distortion and improved sensitivity
  • Wide frequency response from 110 Hz to 10,000 Hz for versatile audio applications

 

Product details SICA 4 L 1 SL 8

SICA 4 L 1 SL 8 4” 120 W Bass-mid woofer

 

Designed for versatility, the SICA 4 L 1 SL 8 can be seamlessly integrated into a range of speaker and woofer projects where compact size is essential but performance cannot be compromised. Its pressed steel basket and copper voice coil winding provide a solid foundation for precision audio reproduction, while the polypropylene ogive dust dome and rubber surround contribute to smooth, controlled cone movement. This driver’s compact mounting dimensions make it ideal for tight enclosures or multi-driver arrays, offering flexibility in both professional and DIY speaker designs.

 

Performance is a key feature of the SICA 4 L 1 SL 8  with a sensitivity of 86.2 dB (1W/1m) and a frequency range that covers everything from deep mid-bass to crisp upper midrange. The balanced neodymium magnet system ensures high efficiency and reduced weight, making this driver suitable for portable and fixed installations alike. Its waterproof cone treatment further extends its usability into outdoor, marine, or other moisture-prone environments, ensuring reliable performance where conventional drivers might fail.

 

Installation is straightforward, thanks to standardized mounting holes and a shallow total depth of 46.5 mm. The 4 L 1 SL 8 is a perfect match for modern audio designs that require high output from a small footprint. Its 1-inch Epotex voice coil is designed for high thermal capacity, supporting extended listening sessions without compromising sound quality. Whether you are upgrading a commercial installation, building a custom home audio solution, or working on a DIY speaker kit, this driver delivers reliable, distortion-free sound.

 

Ideal for use in high-quality audio systems, portable PA devices, and custom loudspeaker builds, the SICA 4 L 1 SL 8 provides excellent value and performance. Pairing this driver with compatible audio components or integrating it into a multi-way system is effortless, thanks to its well-balanced parameters and consistent manufacturing quality. Its waterproof cone also makes it a standout choice for anyone seeking durability and longevity in challenging environments.

Specifications

Article number 4 L 1 SL – 8
EAN 9501212178439
Woofer Series Professional
Nominal Diameter 4 " | 102 mm
Power Handling (RMS) 60 W
Power Handling (max) 120 W
Continuous Program Power 120 W
Impedance (Z) 8 Ω
Sensitivity (SPL at 1m / 2.83V) 86.2 dB
Frequency Response 110 Hz – 10000 Hz
Voice Coil Diameter 25 mm
Magnet Weight 42 g
DC Resistance (Re) 6.0 Ω
Voice Coil Inductance (Le) 0.37 mH
Resonant Frequency (Fs) 108.3 Hz
Mechanical Q (Qms) 3.15
Electromagnetic Q (Qes) 0.78
Total Q (Qts) 0.63
Diaphragm Mass Inc. Airload (Mms) 5.0 g
Mechanical Compliance of Suspension (Cms) 432 µm/N
Surface Area of Cone (Sd) 44.2 cm²
BL Product (BL) 5.10 Tm
Compliance Equivalent Volume (Vas) 1.2 L
Maximum Linear Excursion (Xmax) 2.4 mm
Cone / Diaphragm Material Paper
Surround Material Rubber
Voice Coil Wire Material Copper
Voice Coil Former Epotex
Basket / Frame Material Pressed Sheet Steel
Magnet Material Neodymium
Overall Outside Diameter 100 mm
Overall Depth 46.5 mm
Baffle Cutout Diameter 90 mm
Bolt Circle Diameter 116 mm
# Mounting Holes 4
Mounting Hole Diameter 5 mm
Article number 4 L 1 SL – 8
EAN 9501212178439
Additional information
Woofer SeriesProfessional
Nominal Diameter4 ” | 102 mm
Power Handling (RMS)60 W
Power Handling (max)120 W
Continuous Program Power120 W
Impedance (Z)8 Ω
Sensitivity (SPL at 1m / 2.83V)86.2 dB
Frequency response110 Hz – 10000 Hz
Voice Coil Diameter25 mm
Magnet Weight42 g
DC Resistance (Re)6.0 Ω
Voice Coil Inductance (Le)0.37 mH
Resonant Frequency (Fs)108.3 Hz
Mechanical Q (Qms)3.15
Electromagnetic Q (Qes)0.78
Total Q (Qts)0.63
Diaphragm Mass Inc. Airload (Mms)5.0 g
Mechanical Compliance of Suspension (Cms)432 µm/N
Surface Area of Cone (Sd)44.2 cm²
BL Product (BL)5.10 Tm
Compliance Equivalent Volume (Vas)1.2 L
Maximum Linear Excursion (Xmax)2.4 mm
Cone / Diaphragm MaterialPaper
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Voice Coil FormerEpotex
Basket / Frame MaterialPressed Sheet Steel
Magnet MaterialNeodymium
Overall Outside Diameter100 mm
Overall Depth46.5 mm
Baffle Cutout Diameter90 mm
Bolt Circle Diameter116 mm
# Mounting Holes4
Mounting Hole Diameter5 mm
Shipping & Delivery
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