CRMSmkII - Cinema Reference Monitor System

  • RBN401 pro-ribbon HF section with 8” midrange and 15” woofer
  • Adjustable MHF section for easy and precise projection
  • Shallow system design (32cm/12.6”) for space economic mounting
  • Signal Integrity Sensing™ pre-wired cable compensation
  • Bi-amp filtering for maximum output and precise component matching
  • Screening-rooms, dubbing-stages, post-production studios, high-end Home Theatres

Product description

The CRMS Cinema Reference Monitor System is a 3-way sound system, offering the most natural Digital Cinema and HD audio sound reproduction possible.

Featuring the patented RBN401 pro-ribbon driver, the CRMS combines a remarkable clarity and intelligibility, with a unusually high headroom SPL. The Alcons pro-ribbon drivers have up to 90% less distortion than any conventional mid/high transducer, while the very high peak power handling offers a 1:16 RMS-to-peak ratio, enabling maximum screen compensations without any audible stress on the driver.
The patented horizontal dispersion of the RBN401 extends the stereo-imaging to a larger number of seats in the auditorium; Due to the “compression-less” principle of the pro-ribbon transducer, the system has a linear response at any SPL.

Each CRMS system consists of a separate mid-high frequency section, featuring one RBN401 4” pro-ribbon driver HF with non-vented 8” MF and vented 15” low frequency section with low power-compression 4” voice-coil design.

A matching surround system with identical MF/HF components is available, for perfect screen/surround blending, resulting in a very uniform sound stage.

For full system performance, the bi-amped CRMS is to be driven by two channels of ALC controller-amplifier, delivering maximum sound quality and utmost operation reliability. The 4 ohms system impedance offers maximum amplifier efficiency.

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

The combination of the outstanding sound reproduction quality and the digital dynamics capability, make the system the ideal choice for high-end mix/screening rooms, post-production facilities, dubbing stages and quality-conscious Home Cinemas with a room depth less than 20m/60ft.

As a result of Alcons’ tight manufacturing standards, all system cabinets are within “matched pair” tolerance.

Dimensional drawing

Technical specifications

Frequency response 42 Hz - 20.000 Hz (+/- 3 dB)
34 Hz (+/- 10 dB)
Sensitivity nominal 97 dB (42 Hz – 200 Hz)
100 dB (200 Hz – 10 kHz)
Nominal impedance     4 ohms LF + 4 ohms MHF
Recommended drive Sentinel3 min.
Nominal SPL peak 126 dB Sentinel3 (42 Hz – 200 Hz)
126 dB Sentinel3 (200 Hz – 10 kHz)

131 dB Sentinel10 (42 Hz – 200 Hz)
132 dB Sentinel10 (200 Hz – 10 kHz)

Dispersion H 90° (@ 20 kHz) x V 40° (line-source)

Physical specifications

System 3-way, full-range
Filtering 2-way active
Driver LF (CRMS sub) 1x AW15.4 15”, vented
Driver MF (CRMS top) 1x AMB8 8” non-vented
Driver HF (CRMS top) 1x RBN401 4” pro-ribbon driver
Connectors 2x Speakon NL4 input/link
Physical dimensions CRMS LF  mm                 inches
Height 786                    30.9
Width 469                    18.5
Depth 320                    12.6
Physical dimensions CRMS MHF  
Height 455                     17.9
Width 469                     18.5
Depth 145                        5.7
Weight (approx.) 41,2 kg               80.5 lb
Warranty 6 years limited

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