Dolby CS50 – SLS Ribbon Screen Channel Speaker

What is the Dolby SLS CS50?

The SLS CS50 is a full-range, passive screen channel cinema speaker for small auditoriums, part of Dolby's SLS cinema line. Its high-frequency section uses the PRD500 planar ribbon transducer designed and manufactured by SLS Audio, paired with a 12-inch woofer. The front-ported enclosure extends bass to 40 Hz and suits small theaters with 50 to 75 seats.

How does the Dolby SLS CS50 work?

The planar ribbon driver gives fast transient accuracy and an exceptionally smooth high-frequency response. Its properties also deliver more direct sound to the audience, even allowing for the spreading effect of a perforated screen. A passive crossover splits the signal between the ribbon and the 12-inch low-frequency driver, so the CS50 runs from one amplifier channel at 8 ohms.

Coverage is 90° horizontal by 40° vertical (-6 dB, not including screen scattering), with 99 dB sensitivity and 120 W (31 V) AES/2 power handling. Calculated maximum output is 120 dB continuous and 126 dB peak at one metre. The cabinet is 13-ply 3/4-inch Baltic birch with a flat black latex finish, and an included U-bracket simplifies installation and aiming behind the screen.

The CS50 is also the mid/high section of the SLS System 100A when paired with the CSB115 low-frequency module. Drive it from a Dolby processor such as the CP950 or CP950A with a Dolby Multichannel Amplifier such as the DMA16302.

What are the key features of the Dolby SLS CS50?

• PRD500 planar ribbon HF driver — fast transients and a smooth high-frequency response.
• Open, transparent sound at high SPL — advanced transducer technology in every band.
• 90° x 40° dispersion — controlled coverage for small auditoriums (excluding screen scattering).
• 13-ply Baltic birch cabinet — 3/4-inch construction with a front port for bass to 40 Hz.
• U-bracket included — easy installation and aiming behind the screen.

Where is the Dolby SLS CS50 typically used?

• Small cinema auditorium (50 to 75 seats)
• Screening room
• Training room
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

What size room is the CS50 for?

Dolby specifies the CS50 for small theaters of 50 to 75 seats, used as behind-screen left, center and right speakers.

Is the CS50 compatible with Dolby cinema processors?

Yes. It is a passive 8-ohm speaker driven through an amplifier channel from Dolby processors such as the CP950 or CP950A.

What is the difference between the CS50 and SYS50?

Dolby's System 50 consists of one CS50, so the speaker and specifications are the same. Adding a CSB115 low-frequency module forms the bi-amped System 100A.

How is it mounted?

An included U-bracket supports installation and aiming behind the screen.

What warranty and support are available?

The CS50 carries Dolby's manufacturer warranty, confirmed with your quote. Creation Networks designs, installs and tunes Dolby cinema systems; see the Dolby Professional collection and request a quote.