QSC AD-P4T - 4.5" 2-way Pendant Loudspeaker


-Black or White

- 70/100V transformers 

-Included mounting hardware

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The QSC AcousticDesign™ AD-P4T is a 4.5" two-way pendant-mount loudspeaker ideally suited for a wide variety of foreground and background sound reinforcement applications which utilize 70/100V or 16Ω bypass configurations.


  • Consistent tonal characteristics across the entire AcousticDesign family in surface, ceiling, and pendant applications
  • DMT (Directivity Matched Transition™) waveguide ensures smooth, uniform frequency response over the coverage area
  • Snap-fit magnetic grille
  • 2x quick-link suspension cables and slip-lock fasteners provided
  • Intrinsic Correction™ voicings available via Q-SYS Q-SYS Platform and CXD amplifiers
  • Low-saturation and low-loss 70/100V transformers with 16Ω bypass
  • Blemish-free removable logo
  • Sealable input cover to prevent moisture from entering the input terminal block
  • Available in black (RAL 9011) or white (RAL 9010)
  • Complete EASE, CF2, CAD, & BIM information available online

System Details


Effective frequency range 2

65 Hz – 20 kHz

Rated noise power / voltage 1

30 watts / 22 volts (rms)

Sensitivity [dB] 3 
Sensitivity at 4m, 100V maximum tap


Rated coverage (-6 dB) 4

150° conical DMT™

One-third octave frequency band contribution at full power using 100V maximum tap at 4m. (Hz / dB)

500 / TBD; 630 / TBD; 800 / TBD 
1000 / TBD; 1250 / TBD; 1600 / TBD 
2000 / TBD; 2500 / TBD; 3150 / TBD 
4000 / TBD

Directivity factor 4


Directivity index [dB] 4


Maximum continuous SPL [dB] 5


Maximum peak SPL [dB] 5


Nominal impedance [ohms]


Recommended amplifier

60 watts

Transformer taps / impedance

16Ω (in bypass setting) 
3.75W (70V); 7.5W (100V) Tap: 1333Ω 
7.5W (70V); 15W (100V) Tap: 667Ω 
15W (70V); 30W (100V) Tap: 333Ω 
30W (70V); N/A (100V) Tap: 167Ω

LF transducer

114 mm [4.5 in] weather treated paper cone woofer

HF transducer

19 mm [0.75" in] aluminum dome tweeter

Input connector type

Euroblock connector with parallel output

Enclosure material

Impact Resistant ABS

Grille material

Powder coated steel

Ingress protection


Operating environment

Designed for indoor use

Operating temperature range

-20 to 50° C [-4 to 122° F]

Net weight

2.9 kg [6.5 lb]

Product dimensions (Diameter x Height)

Ø 237 x 272 mm [Ø 9.3 x 10.7 in.]

Shipping weight

3.9 kg [8.7 lb]

Shipping dimensions (H x W x D)

298 x 362 x 286 mm [11.75 x 14.25 x 11.25 in]

Included mounting hardware

Two quick-link cable assemblies (length 3.25m / 128 in 2mm thickness), two slip-lock fasteners, locking euro-block connector, sealable input cover and screws, snap-fit magnetic grille.

Safety Agency

UL1480, Transformer UL registered per UL1876, ROHS, C-Tick (pending), CE compliant. Baffle meets UL94-V0 and UL94-5VB flamibility rating; in accordance with IEC60849 / EN60849 systems.

More Information
MPN (manufacturer part number)AD-P4T
UPC (Universal Product Code)684284067586
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