CR3 - Medium-format screen system

  • Double RBN401 pro-ribbon HF driver, double 6.5” midrange and double 15” woofer
  • Adjustable MHF waveguide with 10-degree pre-tilt for easy projection
  • Shallow system design (35cm/13.7”) for space economic mounting
  • Signal Integrity Sensing™ pre-wired cable compensation
  • Bi-amp filtering for economical powering or tri-amp filtering for maximum output

Product description

The CR3 is a 3-way cinema screen sound system, designed to meet all requirements of current and future (Digital) Cinema sound formats.
Featuring the patented Alcons pro-ribbon driver technology, the CR3 combines an exceptional clarity and intelligibility from low to high output SPL’s with an unusually high dynamic range.

The CR3 offers the most realistic sound reproduction possible, for applications where high output with maximum quality cinema sound reproduction is required. It is recommended for theatres up to 350 seats (indicative).

The driver arrangement consists of a double RBN401 pro-ribbon HF driver array, two 6.5″ mid-range drivers and two vented 15″ woofers for LF reproduction. The CR3 HF section has a 1600W peak power input, enabling a 1:16 dynamic range with up to 90% less distortion from 1kHz. to beyond 20kHz.
The absence of a “compression threshold”, caters for the same tonal balance at all SPL’s, while the patented “Real-90″ horizontal dispersion of the RBN401 pro-ribbon guarantees a very stable sound field throughout the operating bandwidth, widening the stereo experience for far left and right seated audience.
For optimized projection, while minimizing operational system depth, the MF/HF waveguide features a 10º pre-tilt.

The multiple driver arrangement caters for a controlled sound projection while enabling a very shallow system design: The shallow enclosure measures a depth of only 35cm/13,7” providing for flexible mounting, claiming only a minimum of space behind the screen.

The CR3 is available with bi-amp filtering for economical powering or tri-amp filtering for maximum system output.

The CR3 is powered and controlled by the ALC amplified loudspeaker controller; Through the integrated CR3 drive-processing, the ALC offers response optimisation and dedicated protection.

Through the SIS™ (Signal Integrity Sensing) circuit, the cable-length and connector resistance between the CR3 and ALC is completely compensated (system damping factor >10.000), for further increased accuracy and controlled cone-travel, resulting in a tighter mid and bass response.

Dimensional drawing

Technical specifications

Frequency Response  
+/- 3 dB   43 Hz - 20.000 Hz
+/- 10 dB   32 Hz - 
Nominal SPL   104 dB (200 Hz – 10 kHz)
Nominal impedance   LF 4 ohms, MF/HF 8 ohms (bi-amp)
LF 4 ohms, MF 32 ohms, HF 8 ohms (tri-amp)
Recommended drive   Sentinel3 min., max. 1 pce. per 2 channels (bi-amp)
Nominal SPL peak   131 dB (bi-amp), 136 dB (tri-amp) (Sentinel3 200 Hz – 10 kHz)
135 dB (bi-amp), 139 dB (tri-amp) (Sentinel10 200 Hz – 10 kHz)
Dispersion H x V   90° x 40° (nom./w. screen diffraction)

Physical specifications

System 3-way, full-range
Filtering   LF active, MF/HF passive or LF, MF, HF active
Drivers LF   2x AW15.4 15", vented
Drivers MF   2x AM65ND 6.5"
Drivers HF   2x RBN401 4" pro-ribbon driver
Cross-over frequencies   250Hz. – 1 kHz
Connectors   2x Speakon NL4 input
Physical dimensions   mm            inches
Height   1848          72.8
Width   750            29.5
Depth   350            13.8
Weight (approx.)    
CR3LF   40 kg       (88.2 lb)
CR3MHF   26 kg       (57.3 lb)
Warranty   6 years limited

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