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QSC SC-434: 4-Way Tri-Amp Triple 15-Inch Cinema Screen Channel

Model SC-434

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  • Manufacturer Warranty
  • Pan-India Delivery
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  • Three 15-inch woofers, 4-inch voice coils; MHV-1090 with coaxial HF/VHF driver
  • 90 x (+20 to -30) degree coverage, 33 Hz to 20 kHz (-6 dB)
  • Tri- or quad-amp, crossover 1,700 and 6,000 Hz at 24 dB per octave
  • LF sensitivity 101 dB; HF/VHF 110 dB
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Product Overview

Overview

The QSC SC-434 is a four-way screen-channel system, tri- or quad-amplified, with a triple 15-inch LF-4315 cabinet and the MHV-1090 mid, high and very-high unit. It combines three 15-inch woofers (5.5 ohm, 101 dB sensitivity) with the coaxial HF/VHF driver for 110 dB at the top, spanning 33 Hz to 20 kHz (-6 dB). The LF-4315 weighs 118 kg and the cabinet is 20 inches deep.

Corporate AV quotes, supplies and installs cinema sound systems across India. Request a quote for the SC-434 and we confirm the supply route, lead time and support terms with you in writing.

Key features

  • Three 15-inch woofers, 4-inch voice coils; MHV-1090 with coaxial HF/VHF driver
  • 90 x (+20 to -30) degree coverage, 33 Hz to 20 kHz (-6 dB)
  • Tri- or quad-amp, crossover 1,700 and 6,000 Hz at 24 dB per octave
  • LF sensitivity 101 dB; HF/VHF 110 dB
  • LF-4315 weight 118 kg

Typical applications

  • Large premium cinemas
  • Rooms needing triple-woofer output
  • Quad-amp installations
Why choose the SC-434
it is a four-way cinema screen-channel loudspeaker with three 15-inch woofers from QSC, a triple 15-inch four-way screen channel reaching 20 kHz.
Product Highlights

Key Benefits

Three 15-inch woofers, 4-inch voice coils; MHV-1090 with coaxial HF/VHF driver

90 x (+20 to -30) degree coverage, 33 Hz to 20 kHz (-6 dB)

Tri- or quad-amp, crossover 1,700 and 6,000 Hz at 24 dB per octave

LF sensitivity 101 dB; HF/VHF 110 dB

LF-4315 weight 118 kg

Use Cases

Ideal Applications

Large premium cinemas

Rooms needing triple-woofer output

Quad-amp installations

Technical Details

Technical Specifications

Acoustics
Configuration 4-way, tri- or quad-amplified
Coverage 90 degrees horizontal x +20 to -30 degrees vertical
Frequency range (-6 dB) 33 Hz - 20 kHz
Upper crossovers 1,700 and 6,000 Hz, 24 dB per octave
Impedance LF 5.5 ohms; MF, HF, VHF 8 ohms each
Sensitivity LF 101 dB; MF 105 dB; HF/VHF 110 dB
Transducers and build
Transducers Three 15-inch woofers, 4-inch copper voice coils; 10-inch horn-loaded mid with phase plug; coaxial HF (3.5-inch) and VHF (1.75-inch) drivers
LF-4315 weight 118 kg

Documents & Downloads

Datasheet Q-SYS SC-434 Data SheetOfficial Biamp data sheet for the SC-434. The PDF may also cover other models in the same range. User Manual Q-SYS SC-434 ManualOfficial Biamp manual for the SC-434. The PDF may also cover other models in the same range. CAD Drawing Q-SYS SC-434 DrawingsOfficial Biamp drawings for the SC-434. The PDF may also cover other models in the same range.

Related Solutions

Why CorporateAV?

Sourced right. Installed right.

Genuine Manufacturer Stock
Every unit sourced through authorized distribution, backed by manufacturer warranty.
Expert AV Integration
Paired correctly with compatible systems and your room's existing AV infrastructure.
Pan-India Delivery & Support
On-site installation and ongoing technical support wherever your project is based.
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Additional Information

Why Buy The SC-434 From Corporate AV?
  • Genuine QSC stock with manufacturer warranty support
  • Custom pricing for bulk and multi-room / multi-site rollouts
  • Local after-sales support — a real team you can call or WhatsApp, not a call centre
  • Expert guidance on product selection and deployment planning
  • Professional installation across Bangalore, Hyderabad, Mumbai, Delhi NCR, and the wider India region
Contact us: +91 99452 30186, WhatsApp us or email avsupport@corporateav.in.
Distribution

Corporate AV supplies and installs QSC products across Bangalore, Hyderabad, Mumbai, Delhi NCR, Chennai, Pune, Kolkata, Ahmedabad, and the wider India region.

Frequently Asked Questions

What is the QSC SC-434?
The QSC SC-434 is a four-way screen-channel system, tri- or quad-amplified, with a triple 15-inch LF-4315 cabinet and the MHV-1090 mid, high and very-high unit. It combines three 15-inch woofers (5.5 ohm, 101 dB sensitivity) with the coaxial HF/VHF driver for 110 dB at the top, spanning 33 Hz to 20 kHz (-6 dB). The LF-4315 weighs 118 kg and the cabinet is 20 inches deep.
What does the SC-434 add over the SC-433C?
The MHV-1090 coaxial HF/VHF driver, extending response to 20 kHz and adding a 6,000 Hz crossover.
What impedances are used?
For the SC-434: LF-4315 5.5 ohms; mid, HF and VHF sections 8 ohms each.
How loud is the top end?
QSC lists 110 dB sensitivity for the HF/VHF section, 105 dB for the mid.
Why are the crossover points described differently?
Q-SYS lists a 250 Hz low crossover in the specification table and 280 Hz in the processing note, so confirm the setting in the manual before programming.
How heavy is the low cabinet?
For the SC-434: The LF-4315 weighs 118 kg, matching the SC-433C.
Can Corporate AV supply and install the QSC SC-434 in India, and how do I get a quote?
Corporate AV quotes and installs cinema sound systems across India, with a site survey and commissioning. Because QSC has moved its Digital Cinema Series to another owner, we confirm the supply route and support terms for this model when you request a quote. Use the Request a Quote button or message us on WhatsApp.