Alcons Audio develops professional sound systems for quality-conscious clients in the cinema, installation and touring/rental industry. All products are developed and manufactured in house with traditional craftsmanship combined with the latest technologies, materials and production processes.
 
    
 
  technical specifications CB181SL
     
      general
 
 
  • single 18” long-excursion woofer with vented-spider
  • space-economic design: cabinet depth only 11”/27.5cm
  • lowest usable frequency 25Hz.
  • power handling 1.000W RMS, 6.000W peak
  • SIS pre-wired for very high damping and speaker cable compensation (with ALC)
  • large, side-placed vents for improved flow capacity without moving the screen
  • dedicated (excursion) protection in combination with SDP modules (with ALC)
 
 
   
      description
 
  The CB181sl is a direct-radiating, ultra-slim subwoofer system for cinema applications. Featuring a single 18” long excursion woofer with 4” voicecoil, together with the large bass-reflex vents, the CB181 delivers sustained, fundamental sub-bass output.

The Signal Integrity Sensing™ pre-wiring ensures complete cable/connector compensation between the CB181sl and ALC controller-amplifier. Especially with the typical long speaker cables and the subwoofer system’s possible low impedance, the effect of Signal Integrity Sensing is remarkable;
Really tight and accurate reproduction for even the lowest octaves.
The enclosure design provides for stacking, flying or wall-mounting. The side-oriented reflex vent enables the cabinet to be closely mounted behind the screen without chance of screen resonance. Typical applications for the CB181sl include cinema subwoofer or sub-bass extension of general sound systems, used in multiples depending of low frequency requirements.

For full system performance, we recommend using the CB181sl in combination with an ALC amplifier/ controller. Driven by the ALC, the CB181sl not only delivers maximum sound quality and output power, but is also inaudibly protected against over- excursion (SDP circuit), which is a typical challenge for cinema subwoofer systems.

       
  technical specifications   physical specifications
 
Frequency Response  
+/- 3 dB   46 Hz - 150 Hz
+/- 10 dB   25 Hz -
Sensitivity (SPL 1W/M)   98 dB
Nominal Impedance   8 ohms
Maximum RMS power   1000 W(AES)
Maximum peak power   6000 W
SPL program/peak   128/136 dB
Dispersion H x V   omni
 
System subwoofer, front loaded
Drivers LF   1 x ALW18.4 18”,
    side vented
Cross-over frequency HP   25 Hz. recommended
Connectors   2 x Speakon NL4 input
Physical dimensions   mm        inches
Height   1200        47.2
Width   1000        39.4
Depth   275          10.8
Weight (approx.)   72 kg       (159 lb)
Warranty   6 years limited
   
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