QSC AD-C6T-LP 6.5" Two-way low-profile ceiling speaker, 70/100v transformer . Available in white only. (PAIR)

Vendor: QSC
Description QSC AD-C6T-LP 6.5" Two-way low-profile ceiling speaker, 70/100v transformer Available in white only. (PAIR) The QSC AcousticDesign™ QSC AD-C6T-LP is a 2-way, low profile 6.5" ceiling loudspeaker very well suited for a...

QSC AD-C6T-LP 6.5" Two-way low-profile ceiling speaker, 70/100v transformer Available in white only. (PAIR)

The QSC AcousticDesign™ QSC AD-C6T-LP is a 2-way, low profile 6.5" ceiling loudspeaker very well suited for a wide variety of background and foreground sound reinforcement applications utilizing 16Ω or 70/100V bypass configurations.

The AcousticDesign™ Series are offering the integrators a premium quality installed sound solution where aesthetics, performance and consistent coverage are paramount. Designed especially for maintaining a consistent tonal characteristic across the entire family in pendant, ceiling and surface applications, the AcousticDesign Series are allowing the integrators seamless transitions within blended installations.

The QSC AD-C6T-LP is featuring a high quality 6.5" weather treated paper cone woofer with a .75" aluminum dome tweeter and 1" voice coil which is positioned on a DMT waveguide.

DMT (Directivity Matched Transition™) is QSC’s design philosophy where the high frequency waveguide is matched to the natural conical behavior of the woofer at the crossover point. The result is a coherent transition between transducers with improved off-axis power response for consistent 135° conical DMT coverage.

The accurate frequency response of the QSC AD-C6T-LP is maintained even in 70/100V applications by use of a low-loss, low saturation 60-watt transformer with selectable taps, including 16Ω bypass, using a rotary selector located under the snap-fit magnetically attached powder coat steel grille.

To retain lasting good looks, the rugged ABS baffle is further protected by using UV inhibitors that prevent discoloration and by a powder coated steel back can. The magnetic grille features a stick-on logo that can be removed blemish-free for installations where branding is not permitted.

Installers will appreciate the 3x double stepped, long travel dog-ear blind mounting system, which captures from 0" - 2.25" of ceiling thickness. The conduit cover plate can be easily removed by losening the single captive Phillips screw allowing access to the locking 4-pole Euro-block connector which can accept up to four 18AWG pairs, eliminating the hassles of star topology wiring designs. A locking 4-pole Euro-block connector that can accept four 18AWG pairs eliminates the termination hassles of star topology wiring designs.

Intrinsic Correction™ voicings that optimize performance and speed the install process are easily deployed via the Q-SYS Platforms, including CXD-Q Series amplifiers, as part of a complete QSC systems solution.

The QSC AD-C6T-LP is available in QSC standard black (RAL 9011) or white (RAL 9010) and may be painted to match any decor.

For your system integration needs, complete EASE, CF2, CAD, and BIM files are available for download at QSC.com


  • Consistent tonal characteristics across the entire AcousticDesign family in both surface or ceiling applications
  • DMT (Directivity Matched Transition™) waveguide ensures smooth, uniform frequency response over the coverage area
  • Snap-fit magnetic grille
  • 3x double stepped, long travel dog-ear blind mount system
  • Advanced Intrinsic Correction™ voicings available via Q-SYS™ networked audio processing platforms, including CXD amplifiers
  • Low-saturation and low-loss 70/100V transformers with 16Ω bypass
  • Blemish-free removable logo
  • Removable conduit cover plate, also available as accessory for pre-install wiring
  • UL1480 and UL2043 certified
  • Available in white (RAL 9010)
  • Complete EASE, CF2, CAD, & BIM information available online



Effective frequency range1

65 Hz – 20 kHz

Rated noise power / voltage2

60 watts / 31 volts (rms)

Sensitivity [dB]3

Sensitivity at 4m, 100V maximum tap



Rated coverage (-6 dB)4

135° conical DMT

Directivity factor (Q)


Directivity index (DI) [dB]


Maximum continuous SPL [dB]5


Maximum peak SPL [dB]5


Nominal impedance [ohms]


Recommended amplifier

120 watts

Transformer taps / impedance

16Ω (in bypass setting) 
7.5W (70V); 15W (100V) Tap: 667Ω 
15W (70V); 30W (100V) Tap: 333Ω 
30W (70V); 60W (100V) Tap: 167Ω 
60W (70V); N/A (100V) Tap: 83Ω

LF transducer

165 mm [6.5-inch] weather resistant paper cone woofer

HF transducer

25 mm [1-inch] aluminum dome tweeter

Input connector type

Euroblock connector with parallel output

Enclosure material

ABS baffle on powder coated steel back can

Grille material

Powder coated steel

Ingress protection


Operating environment

Designed for indoor use

Operating temperature range

-20 to 50° C [-4 to 122° F]

Cutout dimension

Ø 305 mm [Ø 12-inch]

Net weight

4.2 kg [9.3 lb]

Product dimensions (Diameter x Height)

Ø 340 x 100 mm [Ø 13.37 x 3.95-inch.]

Shipping weight

13.3 kg [29.3 lb] (pair packed)

Shipping dimensions (H x W x D)

178 x 864 x 470 mm [7 x 34 x 18.5-inch] (pair packed)

Included accessories

C-ring and tile rails, rail screws, euroblock connector, cut-out template, tether grille

Optional accessories

AD-MR8 (pre-install mud ring)
AD-CC8 (pre-install conduit cover)

Safety Agency

UL1480, UL2043, NFPA90, NFPA70 suitable for use in air handling spaces. Transformer UL registered per UL1876, ROHS, C-Tick X000, CE compliant. Baffle meets UL94-V0 and UL94-5VB flammability rating; in accordance with IEC60849 / EN60849 systems.