We are sorry, but the QSC SC-423C-F Flyable 3-Way Screen Channel Loudspeaker, Bi- or Tri-Amp has been discontinued by the manufacturer and is no longer available. This page is retained for reference only.
Please call us at 833-965-3722 for assistance finding a replacement product.
The QSC SC-423C-F Flyable 3-Way Screen Channel Loudspeaker was developed for the demanding requirements of large-format motion picture playback. As part of the QSC DCS Digital Cinema Speaker Series, this bi- or tri-amplified system combines two main components: the MH-1075C-F mid/high-frequency system and the LF-4215-F low-frequency system. The enclosures can be joined to form a single flyable unit.
The MH-1075C-F features a horn-loaded 10-inch midrange driver and a 3-inch titanium-diaphragm compression driver. It includes a driver protection network, a passive crossover for bi-amplified operation, and power-limiter circuitry to help protect the high-frequency driver.
The 10-inch midrange driver supports operation down to 250 Hz, while the phase-plug design supports crossover frequencies up to 1,700 Hz to the high-frequency horn. This design helps reproduce critical dialogue frequencies with clarity and intelligibility.
QSC SC-423C-F Features
- Three-Way Cinema Sound: Flyable screen-channel loudspeaker system designed for bi- or tri-amplified operation.
- Tour-Grade Construction: Enclosures constructed from heavily braced 15 mm plywood.
- Suspension Points: Sixteen M10 attachment points per enclosure for installation and suspension.
- Flexible Installation: Common enclosure dimensions support vertical or horizontal array configurations.
- Clear Dialogue Reproduction: Low-distortion waveguides help deliver articulate dialogue for cinema applications.
- Installation Requirements: Suspension hardware is not included and must be supplied by the installer.

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HDTV Supply has QSC Level 1 certified expertise. Our team has completed QSC Level 1 Training, demonstrating foundational knowledge of the QSC platform, including system design, hardware and software, programming, and troubleshooting.
This training helps us provide knowledgeable product guidance when customers are selecting and deploying Q-SYS solutions. When you purchase Q-SYS products from HDTV Supply, you are working with a team that understands the Q-SYS platform and can help you make informed product and system decisions.
Looking for a replacement? Contact HDTV Supply at 833-965-3722 for assistance identifying an alternative cinema loudspeaker for your installation.
Ask a Question About the QSC SC-423C-F
This model has been discontinued. Contact HDTV Supply for help identifying a suitable replacement or for questions about the specifications shown on this reference page.
Phone: 833-WOLFPACK (833-965-3722)
Website: HDTV Supply
QSC SC-423C-F Specifications
Discontinued product — specifications are provided for reference only.
| Specification | SC-423C-F System | LF-4215-F | MH-1075C-F |
|---|---|---|---|
| Nominal Coverage | 90° horizontal × +20° to −30° vertical | ||
| Frequency Range (−6 dB) | 32 Hz–16 kHz | ||
| Crossover Frequencies | 250 Hz and 1,700 Hz, 24 dB/octave | ||
| Impedance | 4 Ω | 8 Ω | 8 Ω |
| Sensitivity (1 W/1 m, half space) | 99.5 dB | Bi-amp: 105 dB | Tri-amp: MF 105 dB; HF 107.5 dB |
| Maximum Input Power | 800 W continuous for 8 hours, IEC 268; 1,000 W continuous for 2 hours, AES | 350 W continuous (passive); mid-high 275 W; HF 75 W continuous | 350 W continuous; 800 W continuous maximum, as supplied |
| Recommended Amplifier Power | 1,600 W continuous maximum | Not specified in supplied data | 800 W continuous maximum |
| Recommended Processing | Subsonic filter below 30 Hz, greater than 18 dB/octave | Fourth-order Linkwitz-Riley crossover at 250 Hz and 1,700 Hz using QSC processing | |
| Connectors | Neutrik Speakon NL4 | Neutrik Speakon NL4 | Neutrik Speakon NL4 |
| Transducers | Two 15-inch (381 mm) high-efficiency woofers with 4-inch copper voice coils | 10-inch high-efficiency midrange driver; 1.5-inch (38 mm) exit compression driver; 3-inch titanium diaphragm | |
| Enclosure | Heavily braced 15 mm tour-grade plywood with sixteen M10 load-rated attachment points per enclosure | ||
| Dimensions (H × W × D) | 40 × 31.5 × 19 in | 40 × 31.5 × 19 in | 40 × 31.5 × 19 in |
| Dimensions (H × W × D) | 1,016 × 800 × 482.6 mm | 1,016 × 800 × 482.6 mm | 1,016 × 800 × 482.6 mm |
| Net Weight | 134 lb (61 kg) | 121 lb (54.8 kg) | 121 lb (54.8 kg) |
| System Net Weight | 255 lb (116 kg), as supplied | ||
Confirm all technical specifications with the archived manufacturer documentation before using them for system design or replacement selection.
QSC SC-423C-F Manuals and Documentation
QSC SC-423C-F User Manual (PDF)
QSC SC-423C-F Specification Sheet (PDF)
This product is discontinued. The linked documents are provided for reference, subject to their continued availability.
QSC SC-423C-F Frequently Asked Questions
QSC SC-423C-F Warranty Information
This product has been discontinued. Contact HDTV Supply for information about any applicable warranty coverage for previously purchased units. Coverage depends on the original purchase and the manufacturer's terms.
Phone: 833-WOLFPACK (833-965-3722)
QSC SC-423C-F Customer Reviews
This discontinued product page is retained for reference. Check this page for any available historical customer reviews. No ratings or testimonials are reproduced here because verified review data was not provided.