Dolby System 126 – Screen Channel Speaker System

What is the Dolby System 126?

The Dolby System 126 is a screen channel speaker system for small and medium-sized immersive cinema auditoriums up to approximately 49.9 feet (15.2 m) deep. It combines one CS126MH mid/high loudspeaker with one CS128LF low-frequency loudspeaker in a single stack. Dolby's patented asymmetrical waveguide gives even coverage and volume shading across the room, and the system runs either bi-amplified or as a passive, single-amp-channel speaker.

How does the Dolby System 126 work?

In bi-amp mode the cinema processor feeds the CS126MH and the CS128LF from separate amplifier channels, with crossover and EQ handled by Dolby processing settings. Adding the optional PXO.126 plug-in crossover (sold separately) turns the stack into a passive, single-amp-channel system at 4 ohms, which helps where amplifier channels are limited.

The CS126MH uses a 10-inch mid-frequency driver and a low-distortion 44.4 mm polyimide dome high-frequency driver on an asymmetrical waveguide that transitions from 70° at the top to 130° at the bottom. That pushes more level to rear seats while softening coverage near the screen. The CS128LF carries two 15-inch woofers that can be wired in parallel or driven individually through a flip-card input. Together the stack covers 39 Hz to 20 kHz with 128 dB summed continuous SPL in bi-amp mode.

With a shallow 13.4-inch (340 mm) depth and side-mounted input plates, the System 126 fits tight screen walls. Pair it with a Dolby CP950A or CP950 processor and a Dolby Multichannel Amplifier such as the DMA16302.

What are the key features of the Dolby System 126?

• Patented asymmetrical waveguide — 70° top / 130° bottom horizontal coverage gives even volume shading across the seating area.
• Bi-amp or single-channel operation — the optional PXO.126 crossover enables passive, single-amp-channel use.
• Low-distortion HF driver — a 44.4 mm polyimide dome delivers smooth response up to 20 kHz.
• Dual 15-inch LF section — the CS128LF woofers can be driven in parallel or individually via a flip-card PCB.
• Shallow 13.4-inch depth — side-mounted input plates simplify installation and service in tight spaces.
• Floor anchoring option — the BKT.FLR floor-bracket kit (sold separately) secures the stack to the mounting surface.

Where is the Dolby System 126 typically used?

• Cinema auditorium up to about 50 ft deep
• Screening room
• Auditorium
• House of worship
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

What is included in the System 126?

The system consists of one CS126MH mid/high speaker and one CS128LF low-frequency speaker. Each is also listed by Dolby as a separate product, and the PXO.126 crossover and BKT.FLR floor bracket are sold separately.

Does the System 126 work with Dolby Atmos and the CP950A?

Yes. It is designed for immersive venues and is driven by Dolby cinema processors such as the CP950A, with amplification from Dolby Multichannel Amplifiers.

Can it run from one amplifier channel?

Yes. With the optional PXO.126 plug-in crossover the stack operates as a passive 4-ohm system rated at 400 W @ 40 Vrms. Without it, run the system bi-amplified.

How large a room does it cover?

Dolby specifies the System 126 for auditoriums up to approximately 49.9 feet (15.2 m) deep. Larger rooms step up to System 128 or the horn-loaded Systems 131, 133 and 136.

What warranty and support are available?

The System 126 carries Dolby's manufacturer warranty, confirmed with your quote. Creation Networks designs, installs and tunes Dolby screen systems; see the Dolby Professional collection and request a quote.