QSC AC-C4T-NB 4.5-inch Full-range, 140? conical for use with 70 or 100V systems (4 pack)

Original price was: $636.00.Current price is: $572.40.

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QSC AC-C4T-NB 4.5-inch Full-range, 140? conical ceiling speaker. Styled in white, the QSC AC-C4T-nb is a ceiling-mounted speaker for background music playback and paging in 70 and 100V systems. The speaker offers a 140? Conical coverage pattern and can achieve continuous playback at sound-pressure levels up to 101 dB. Boasting four dog-ears twistable via included screws, the speaker is easy to install into ceilings; all you need is a Phillips head screwdriver. It’s also easy to wire thanks to its four-pole Euroblock connectors.



  • High quality 4.5-inch full-range transducer provides exceptional clarity through the critical voice range.
  • Low-saturation 70V/100V transformers with 8-ohm bypass.
  • 4-pole Euroblock connector for easy system wiring.
  • White (RAL 9010) with UV inhibitors to match complementing QSC product families.


Specifications AC-C4T-nb
Transducer 114 mm [4.5-inch] weather resistant paper cone
Rated noise power [rms] (1) 6 W
Nominal Impedance 8Ω
Transformer taps:
          70 V 6, 3, 1.5, 0.75 W
          100V 6, 3, 1.5 W
Effective frequency range (2) 62 Hz – 18 kHz
Rated Coverage(3) 140° conical
Directivity Factor 4
Directivity Index [dB] 6
Sensitivity (4) 93 dB
Maximum continuous SPL (5) 101 dB
Maximum peak SPL (5) 107 dB
Baffle material ABS
Grille material Powder coated steel
Cutout Dimensions Ø 178 mm [Ø 7-inch]
Net weight 1.2 kg [2.6 lb]
Product dimensions (Diameter x Height) Ø 206 x 95 mm [Ø 8.11 x 3.75-inch]
Shipping weight 5.9 kg [13.1 lb] (packs of 4)
Shipping dimensions (H x W x D) 254 × 324 × 476 mm [10 × 12.75 × 18.75-inch] (packs of 4)


qsc_ac-c4t-nb, ac-c8t-nb_spec