Expersys Technologies

Our team of professionals is backed by years of experience and deep exposure to the cinema industry. We believe in strong teamwork and openly sharing information with clients to keep them informed about industry trends and new technologies that enhance the cinematic experience.

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Jalan Puteri , 47100 Puchong, Selangor, Malaysia.
sales@expersys.com.my
+603 8066 4263
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Dolby System 131

Utilizing our unique asymmetrical dual-entrant horn design, the new Dolby® CS131MH mid/ high-frequency screen speaker delivers all the subtle detail and nuance expected in today’s immersive cinematic experience.

Coupled with the CS136LF low-frequency module, the CS131MH completes the Dolby System 131, a new cinema screen channel system capable of extremely effective and accurate performance in large auditoriums of up to 111 feet (34 meters) in depth.

The asymmetrical coverage pattern — 50° vertical with horizontal transitions from 55° at the top to 100° at the bottom of the waveguide — ensures optimized volume and throws to the rear seats with gradual widening and softening coverage for the closer seats. Very articulate, uniform dialog and soundtrack can now be enjoyed in every seat in the auditorium, rather than in just a select few.

Echoing the primary design features of the System 133, the System 131 utilizes advanced input plates that feature high-current, spring-loaded terminal blocks allowing quick, tool-free connection during installation. Unique flip-card electrical routing enables quick and easy passive, or bi-amped module selection, as well as individual or parallel low-frequency configuration.

 

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Description

Utilizing our unique asymmetrical dual-entrant horn design, the new Dolby® CS131MH mid/ high-frequency screen speaker delivers all the subtle detail and nuance expected in today’s immersive cinematic experience.

Coupled with the CS136LF low-frequency module, the CS131MH completes the Dolby System 131, a new cinema screen channel system capable of extremely effective and accurate performance in large auditoriums of up to 111 feet (34 meters) in depth.

The asymmetrical coverage pattern — 50° vertical with horizontal transitions from 55° at the top to 100° at the bottom of the waveguide — ensures optimized volume and throws to the rear seats with gradual widening and softening coverage for the closer seats. Very articulate, uniform dialog and soundtrack can now be enjoyed in every seat in the auditorium, rather than in just a select few.

Echoing the primary design features of the System 133, the System 131 utilizes advanced input plates that feature high-current, spring-loaded terminal blocks allowing quick, tool-free connection during installation. Unique flip-card electrical routing enables quick and easy passive, or bi-amped module selection, as well as individual or parallel low-frequency configuration.

Features

  • Dual-entrant asymmetrical horn design allows for close driver proximity yielding improved pattern control around the crossover frequency and providing even coverage and volume shading for all the seats in the auditorium
  • Quality 2” HT polymer high-frequency compression driver exhibits superb performance in the articulation ranges
  • Advanced input plate featuring high-current, spring-loaded terminal block and unique flip-card PCB electrical routing, allows quick, tool-free connection during installation and easy selection of passive or bi-amp module configuration
  • Composite diaphragm, 2” mid-frequency compression driver couples in close vertical proximity to the high-frequency driver, enhancing sensitivity, intelligibility, and power handling
  • Preassembled horn design simplifies setup while reducing freight costs
  • Intuitive tilt and pan mechanisms can be used with laser aiming sights in the speaker horn. This provides quick and accurate aiming of the horn using a common laser pointer.
  • Optional BKT.FLR Floor-bracket kit (sold separately) facilitates the mechanical connection of the speaker stack to the auditorium mounting surface.*

Specifications

  • Type : Cinema Screen Speaker
  • Frequency Range : 31 – 20kHz
  • Usable LF Response : 28Hz
  • Coverage Window (Asymmetrical) : 55° top horizontal, 100° bottom horizontal, 50° vertical
  • CS131MH passive mode rated impedance : 8 Ohms
  • CS131MH bi-amp mode rated Impedance :
    • MF 8 ohms
    • HF 8 ohms
  • CS136LF rated impedance :
    • 4 ohms
    • 8 ohms independent drive
  • CS131MH passive mode sensitivity @ 1 watt : 103dB
  • CS131MH bi-amp mode sensitivity @ 1 watt :
    • MF 109dB
    • HF 105dB
  • CS136LF sensitivity @ 1 watt : 102dB
  • CS131MH passive mode power handling : 300W @ 49Vrms
  • CS131MH bi-amp mode power handling :
    • MF 80W @ 25.3Vrms
    • HF 70W @ 23.7Vrms
  • CS136LF power handling : 1400W @ 74.8Vrms
  • CS131MH passive mode maximum continuous SPL @ 1 meter : 128dB
  • CS131MH bi-amp mode maximum continuous SPL @ 1 meter : 130dB (MF 128dB + HF 124dB)
  • CS136LF maximum continuous SPL @ 1 meter : 133dB
  • System 131 maximum summed continuous SPL @ 1 meter : 134dB
  • Transducers :
    • LF 15” x 2
    • MF – 2” Composite
    • HF – 2” HT Polymer
  • Input : Spring terminal block (Advanced Input Plate w/flip card)
  • Enclosure : Wood
  • Accessories : BKT.FLR Floor Bracket Kit (sold separately)
  • Dimensions :
    • 63.56“H x 30.22“W x 23.21“D

Downloads

Dolby System 133 Datasheet