We are sorry, but the QSC SC-444 4 × 15-inch 4-Way Cinema Screen Channel Loudspeaker System 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-444 4-Way Cinema Screen Channel Loudspeaker System is a four-way screen-channel system designed for professional cinema playback, with selectable tri-amp or quad-amp operation. The system comprises two LF-4215 dual 15-inch low-frequency enclosures and an MHV-1090 mid-high-very-high-frequency assembly.
The MHV-1090 features a horn-loaded 10-inch midrange cone driver and a coaxial neodymium compression driver for high- and very-high-frequency reproduction. Its driver-protection network and passive crossover support tri-amp operation, helping protect the high- and very-high-frequency drivers from damaging low-frequency signals.
The 10-inch midrange driver is designed to operate as low as 250 Hz, while its phase-plug design supports crossover to the high-frequency horn. The high-frequency diaphragm covers the range from approximately 1,800 to 7,000 Hz, while the very-high-frequency driver extends reproduction toward 22 kHz, according to the supplied product description.
The two LF-4215 enclosures are designed to provide the extended low-frequency response required for cinema applications. Their close-coupled woofer arrangement is intended to maintain broad coverage over a wider frequency range. The preassembled MHV-1090 assembly and mounting arrangement were designed to simplify installation.
QSC SC-444 Features
- Four-way cinema screen-channel loudspeaker system with selectable tri-amp or quad-amp operation.
- Two LF-4215 enclosures containing four 15-inch woofers in total.
- MHV-1090 assembly with a 10-inch horn-loaded midrange driver and coaxial neodymium HF/VHF compression driver.
- Low-distortion waveguides designed for clear, articulate dialogue reproduction.
- Heavily braced MDF construction for the LF-4215 enclosures.
- Approximately 20-inch enclosure depth to help facilitate installation.
- THX approval and RoHS compliance, as listed in the supplied product information.
QSC Certified Expertise
Knowledgeable Support for QSC Products
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? Call 833-965-3722 or visit HDTV Supply for help identifying an alternative for your cinema audio installation.
Ask a Question About the QSC SC-444
The QSC SC-444 has been discontinued. For questions about the archived specifications, existing installations, or replacement options, please contact our team.
Phone: 833-WOLFPACK (833-965-3722)
Website: HDTV Supply
QSC SC-444 Specifications
The following specifications are based on the supplied archived product information. Verify critical values against the original manufacturer documentation before system design or installation.
| Specification | Details |
|---|---|
| System Configuration | Four-way screen-channel system; selectable tri-amp or quad-amp operation |
| System Components | Two LF-4215 low-frequency enclosures and one MHV-1090 mid-high-very-high-frequency assembly |
| Horizontal Symmetry | Yes, as listed in the supplied data |
| Vertical Symmetry | Yes, as listed in the supplied data |
| Nominal Coverage | 90° horizontal × +20° to −30° vertical |
| Frequency Range (−6 dB) | 33 Hz–20 kHz, as listed in the supplied specifications |
| Active Crossover Frequencies | 250 Hz, 1,700 Hz, and 6,000 Hz; 24 dB per octave |
| Connectors | Barrier-strip screw terminals accepting up to #10 AWG stranded wire |
| LF-4215 Low-Frequency Enclosures (Pair) | |
| Impedance | 4 Ω per enclosure, as listed in the supplied data |
| Sensitivity | 102.5 dB (1 W/1 m, half-space), as listed for the pair |
| Maximum RMS Input Power | 800 W continuous for 8 hours using IEC 268 noise with a 6 dB crest factor, as listed in the supplied data |
| Recommended RMS Amplifier Power | 1,600 W maximum, as listed in the supplied data |
| Recommended Processing | Subsonic filter below 30 Hz, greater than 18 dB per octave |
| Transducers | Four 15-inch (381 mm) high-efficiency extended-bass woofers with 4-inch copper voice coils |
| Enclosure | Ported, heavily braced MDF construction; LF-4215 enclosure design |
| Dimensions (W × H × D) | 30 × 72 × 20.3 inches for the pair, as listed in the supplied data |
| Net Weight | 344 lb for the pair, as listed in the supplied data |
| MHV-1090 Mid-High-Very-High-Frequency Assembly | |
| MF/HF/VHF Impedance | 8 Ω, as listed in the supplied data |
| Tri-Amp MF Sensitivity | 105 dB (1 W/1 m, half-space) |
| Tri-Amp HF/VHF Sensitivity | 110 dB (1 W/1 m, half-space), as listed in the supplied data |
| MF Transducer | 10-inch high-efficiency, horn-loaded cone driver with phase plug |
| HF/VHF Transducer | Coaxial neodymium compression driver with 3.5-inch HF diaphragm and 1.75-inch VHF diaphragm |
| Tri-Amp MF Maximum RMS Input Power | 275 W continuous for 8 hours using IEC 268 noise with a 6 dB crest factor, as listed in the supplied data |
| Quad-Amp HF Maximum RMS Input Power | 150 W continuous for 8 hours using IEC 268 noise with a 6 dB crest factor, as listed in the supplied data |
| Tri-Amp MF Recommended RMS Amplifier Power | 800 W maximum, as listed in the supplied data |
| Recommended Processing | Fourth-order Linkwitz-Riley crossovers at 250 Hz, 1,700 Hz, and 6,000 Hz via QSC DCM/QSControl.net, as listed in the supplied data |
| Dimensions (H × W × D) | 39 × 30 × 20 inches, as listed in the supplied data |
| Net Weight | 84 lb, as listed in the supplied data |
| General | |
| System Weight | 428 lb, as listed in the supplied product data |
| Baffle Cut-Out | 111.6 × 32 inches, as listed in the supplied data; verify before installation |
| Regulatory Compliance | THX and RoHS, as listed in the supplied data |
Specification note: Some supplied values require verification. The listed 344 lb LF-4215 pair plus the 84 lb MHV-1090 assembly totals 428 lb, which matches the listed system weight. However, confirm whether the LF-4215 dimensions refer to the combined pair or an individual enclosure, and verify the baffle cut-out and amplifier power assignments against the original datasheet.
QSC SC-444 Manuals and Documentation
QSC SC-444 Specification Sheet (PDF)
The supplied documentation includes a specification sheet. A user manual was not provided in the original product content.
QSC SC-444 Frequently Asked Questions
Warranty Information
The QSC SC-444 has been discontinued. Current warranty coverage for this legacy product has not been confirmed. For previously purchased equipment, contact the original seller or QSC to determine whether any warranty or service options remain available.
For replacement assistance, contact HDTV Supply at 833-965-3722.
Customer Reviews
No customer reviews were included in the supplied product information. If reviews are available through the store's review system, they can be displayed in this section.
