QSC SC-1120 – 2-Way 1x12-Inch Cinema Screen Channel Loudspeaker

Product Overview

The QSC SC-1120 is a cost-effective passive two-way screen channel loudspeaker from the DCS Digital Cinema Series, designed for small cinema auditoriums up to 35 feet (11 m) from screen to last row. It combines a 12-inch woofer and a high-frequency compression driver in a single enclosure for simplified installation.

Engineered for behind-screen motion-picture playback, the SC-1120 brings QSC cinema sound quality to smaller rooms, screening spaces, and post-production environments.

Product Description

The SC-1120 features a 12-inch (305 mm) woofer with a 2.5-inch (63 mm) voice coil for extended low-frequency bandwidth, crossing over passively into a high-frequency compression driver with a 1.75-inch (44 mm) voice coil. Combining both drivers in one enclosure simplifies behind-screen installation and requires only a single amplifier channel.

With 300 W rated power, 8-ohm impedance, 95.5 dB sensitivity, and a 48 Hz to 19 kHz frequency range, the SC-1120 reaches a maximum continuous SPL of 120 dB. The MDF enclosure provides solid, low-resonance performance in compact behind-screen spaces.

As part of the QSC DCS cinema ecosystem, the SC-1120 pairs naturally with QSC cinema subwoofers and surround loudspeakers for complete small-room systems. For longer rooms up to 45 feet, see the QSC SC-1150.

Key Features

• Single-enclosure two-way design — A 12-inch woofer and HF compression driver are combined in one cabinet to simplify behind-screen installation.
• Optimized for small auditoriums — Engineered for cinemas up to 35 feet (11 m) from screen to the last row of seating.
• Passive crossover, single amplifier channel — A passive crossover lets the SC-1120 run from a single amplifier channel for cost-effective deployment.
• Extended low-frequency woofer — The 12-inch woofer with 2.5-inch voice coil delivers strong low-frequency bandwidth for its class.
• High-output compression driver — A 1.75-inch voice-coil HF compression driver provides clear, articulate dialogue reproduction.
• Solid MDF enclosure — The MDF cabinet reduces resonance for clean playback in compact behind-screen spaces.

Typical Applications

• Auditorium
• Broadcast studio
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

What size auditorium is the SC-1120 designed for?
It is optimized for small cinema rooms up to 35 feet (11 m) from the screen to the last row of seating.

Does the SC-1120 require multiple amplifier channels?
No. Its passive crossover allows operation from a single amplifier channel, simplifying cabling and reducing system cost.

How does it integrate into a cinema system?
As a DCS Digital Cinema Series screen channel, it pairs with QSC cinema subwoofers, surround loudspeakers, and cinema processors/amplifiers for a complete small-room system.

What warranty and support come with this loudspeaker?
QSC installed loudspeakers are covered under QSC's standard limited warranty; refer to QSC's published warranty terms for the current coverage period applicable to this model. Creation Networks provides pre- and post-sale support for system design and integration questions.

Explore related QSC products at Creation Networks, including the QSC SC-1150.