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 LR7B
     
The LR7, LR14 and the LR16 are the main components of The Ribbon line-array systems. For more information on the line-arrays and The Ribbon Network, click here
       
      general
  LR7B

LR7B dimensional drawing

 
  • Double-tuned concentric band-pass design with high efficiency
  • Neodymium 12” driver for excellent performanceto- weight ratio
  • Ultra-compact and lightweight yet rigid cabinet construction
  • Stackable and flyable with LR7 line-array or in separate arrays
  • SIS pre-wired for very high damping and further reduced distortion (with ALC)
  • Durotect™ impact-resistant coating
 
 
   

description

The LR7Bass is a double-tuned band-pass bass system, matching the LR7 line-array in both permanent and portable applications. Featuring a single 12” long excursion woofer with Neodymium magnet structure, the LR7B delivers high quality, high output bass response from an ultra-compact and weight efficient package. The concentric bandpass configuration offers LR7-tuned bass response in full-space (flown) and increased efficiency in half-space (stacked) applications

The extended frequency response enables the LR7B to be used as mid-bass reinforcement, full-range bass extension or subwoofer.

The integrated flying system, combines light weight with high WorkingLoadLimit and makes for a quick system set-up in combination with the LR7 line-array module.

The LR7Bass features an integrated top hat, enabling a stand-mounted “top/sub” combination together with 3 units LR7 on the BRK3LR7 bracket (option). The SIS pre-wiring ensures complete cable/connector compensation between the LR7Bass and ALC;

The LR7Bass is to be used in combination with an ALC2 or ALC4 amplifier/controller, then delivering maximum sound quality and output power with dedicated and inaudible (power and excursion!) protection (SDP circuit).

       
  technical specifications   physical specifications
 
Frequency Response  
+/- 3 dB   46 Hz - 200 Hz
- 10 dB   37 Hz -
Sensitivity (SPL 1W@M)   97 dB
Nominal Impedance   8 ohms
Maximum RMS power   500 W
Maximum peak power   1600 W
SPL program/peak   124/129 dB
Dispersion H x V   omni
 
System subwoofer, band-pass
Drivers LF   1 x AW12.3ND 12”,
    double vented
Cross-over frequency HP   40 Hz recommended
Connectors   2 x Speakon NL4 input
Physical dimensions   mm            inches
Height   411             s16.2
Width   359             14,.1
Depth   564             22.2
Weight (approx.)   19 kg            (41.8 lb)
Warranty   6 years limited
   
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L-series

  » LR7  
  » LR7/90  
  LR7B  
  » LR14  
  » LR14/90  
  » LR14B  
  » LR16  
  » LR16B  

downloads

technical specs  
hi-res photo  
dimensional drawing  
Fresnel/Fraunhofer region LR7  
  » ARC™ simulation program  
  » DWG (2D)  
  » DWG (3D)  

mounting options

  » GRD7  

transport options

  » FC2LR7B