CRS12GT/90 - large-format high-output reference surround

  • RBN601 pro-ribbon HF driver, 12” Neodymium woofer
  • Signal Integrity Sensing™ pre-wired cable compensation
  • ‘Real-90’ dispersion, H 90° x V 40° (nom.)
  • 10° slanted baffle + trapezoidal cabinet for optimised projection
  • Choice of 2 impedance versions: 4 ohms (immersive) or 8 ohms (5.1/7.1)
  • Available in any color through the ACO™ RAL color option scheme

Product description

The CRS12GT/90 is a 2-way passive-filtered loudspeaker, designed to meet all requirements of current and future immersive surround sound formats.

Featuring Alcons’ patented pro-ribbon driver technology, the CRS12GT/90 combines an
exceptional clarity and intelligibility with an unusually high dynamic range and up to 90% less distortion than traditional cinema surround systems.
It offers the most realistic immersive surround sound reproduction possible.

By utilizing identical MHF transducers for screen- and surround systems, an exceptionally wide and uniform sound stage throughout the entire listening area is realized.

The CRS12GT/90 system consists of one RBN601 6” pro-ribbon driver for HF and a vented 12” mid-bass for LF reproduction. The CRS12GT/90 HF section has a 1000 W peak power input, enabling a 1:15 dynamic range with lowest distortion from 1 kHz to beyond 20 kHz. The absence of a “compression threshold”, caters for a linear tonal balance at any SPL, while the patented horizontal dispersion of the RBN601 guarantees a very stable sound field throughout the operating bandwidth.

Developed as surround system located closest to the screen channels in immersive surround systems, the 90° horizontal by 40° vertical dispersion, in combination with the 10-degree slanted baffle, the trapezoidal cabinet shape and the upside-down speaker arrangement enables a very precise projection on the critical listening area, preventing wall/ceiling reflections.

For full system performance, the CRS12GT/90 is to be driven by an ALC controller-amplifier, delivering maximum sound quality with increased headroom and utmost operation reliability. The CRS12GT/90 is available in 8 ohms and 4 ohms version, for maximum amplifier efficiency in individually-amplified immersive surround systems and can be supplied in any RAL™ color for perfect interior blending.

The Signal Integrity Sensing™ pre-wiring ensures complete cable/connector compensation between the CRS12GT/90 and ALC, significantly increasing response accuracy, regardless of cable length and system impedance, with tight and accurate mid and bass response as result.

The CRS12GT is prepared for a universal bracket, with pattern: 4x M8 – 2”x 4.25” (51x108mm).

Dimensional drawing

Technical specifications

Frequency response 66 Hz - 20.000 Hz (+/- 3dB)
52 Hz -                   (+/- 10dB)
Sensitivity nominal 104 dB (8 ohms, 200 Hz - 10 kHz)
103 dB (4 ohms, 200 Hz - 10 kHz)
Nominal impedance 8 or 4 ohms
Recommended drive     Sentinel3 min., max. 3 pcs (8 ohms)
1 pce (4 ohms) per channel (2.7 ohms / 4 ohms)
Nominal SPL peak 129 dB (Sentinel3 8 ohms 200 Hz - 10 kHz)
131 dB (Sentinel3 4 ohms 200 Hz - 10 kHz)
135 dB (Sentinel10 8 ohms 200 Hz - 10 kHz)
136 dB (Sentinel10 4 ohms 200 Hz - 10 kHz)
Dispersion H x V 90° x 40° (40° line-source)


Physical specifications

System 2-way, full-range
Filtering passive
Driver LF AW12.3ND-8 12”, vented
Driver HF 1x RBN601 6” pro-ribbon driver
Connectors 2x Speakon NL4 input/link
Physical dimensions  mm                 inches
Height 649                   25.6
Width 370                   14.6
Depth 392                   15.4
Weight (approx.) 18,6 kg             41.0 lb
Warranty 6 years limited

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