Wheaton, MD, United States
About this listing
Deliver Premium Sound with the QSC AD-C4T-BK 4.5-Inch Two-way Ceiling Speaker, 70/100 Volt Transformer with 16Ω Bypass - Black
The QSC AcousticDesignâ„¢ AD-C4T-LP is a 4.5-inch two-way low profile ceiling loudspeaker, ideal for foreground and background sound reinforcement in restaurants, retail spaces, educational facilities, worship centers, transportation terminals, and more. Designed for performance and versatility, the AD-C4T-LP offers 70/100V and 16-ohm bypass configurations with consistent tonal characteristics across the entire AcousticDesign family, ensuring seamless sonic integration in mixed ceiling, surface, and pendant installations.
Built with premium components including a weather-treated paper cone woofer and aluminum dome tweeter, the AD-C4T-LP utilizes QSC’s DMT (Directivity Matched Transition™) waveguide technology to deliver smooth, uniform frequency response across the coverage area. Its rugged construction, magnetic grille, and installer-friendly features make it an elegant and reliable solution for professional audio installations.
Consistent tonal characteristics across the entire AcousticDesign family for ceiling, surface, and pendant installations
DMT (Directivity Matched Transitionâ„¢) waveguide ensures uniform coverage and smooth frequency response
Snap-fit magnetic grille with blemish-free removable logo
3x double-stepped, long-travel dog-ear blind mount system for quick installation
Intrinsic Correctionâ„¢ voicings available via Q-SYS Platforms and CXD amplifiers
Low-saturation, low-loss 70/100V transformer with 16-ohm bypass
Removable conduit cover plate for pre-install wiring flexibility
UL1480 and UL2043 certified for air handling space use
Available in white (RAL 9010) and paintable to match any décor
Complete EASE, CF2, CAD, and BIM data available online
SPECIFICATIONS
System Type
4.5-inch two-way low profile ceiling loudspeaker
Transducers
LF Driver: 114 mm (4.5-inch) weather-treated paper cone woofer, 1-inch voice coil
HF Driver: 19 mm (0.75-inch) aluminum dome tweeter on DMT waveguide
Frequency Response
Effective Range: 70 Hz – 20 kHz
Power Handling
Rated Noise Power/Voltage: 30 W / 22 V (RMS)
Recommended Amplifier Power: 60 W
Sensitivity and Coverage
Sensitivity: 87 dB
Rated Coverage: 150° conical DMT
Maximum Continuous SPL: 102 dB
Maximum Peak SPL: 108 dB
Impedance and Taps
Nominal Impedance: 16 ohms (bypass)
Transformer Taps:
3.75 W (70V) / 7.5 W (100V)
7.5 W (70V) / 15 W (100V)
15 W (70V) / 30 W (100V)
30 W (70V)
Enclosure and Materials
ABS baffle with powder-coated steel back can
Powder-coated steel grille with magnetic attachment
UV inhibitors for color retention
Connections
Euroblock connector with parallel output
Removable conduit cover plate
Mounting
3x double-stepped, long-travel dog-ear blind mount system (0"–2.25" ceiling thickness)
Cutout Dimension: Ø 245 mm (9.65 inches)
Dimensions and Weight
Product Dimensions (Diameter × Height): Ø 280 × 100 mm (11.02 × 3.93 inches)
Net Weight: 3 kg (6.6 lbs)
Shipping Weight (Pair): 10.2 kg (22.5 lbs)
Included Accessories
C-ring and tile rails, rail screws, Euroblock connector, cut-out template, tether grille
Optional Accessories
AD-MR6 pre-install mud ring
Certifications
UL1480, UL2043, NFPA90, NFPA70
IP-34 rated for indoor use
Transformer UL registered per UL1876, ROHS and CE compliant
Baffle meets UL94-V0 and UL945VB flammability ratings
Manufacturer: QSC AudioModel: AD-C4T-BKSKU: I439818-N-4-WHXXUPC: 684284067524We are Chuck Levin's Washington Music CenterSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.
Price$165
+ $37.55 Shipping
30-Day Return Policy
Enjoy peace of mind with your new gear
