AC-C4T-nb

4.5-inch Full-range, 140° conical

  • Hero front and side view of the AC-C4T-nb in-ceiling speaker
  • Hero front view of the AC-C4T-nb in-ceiling speaker with and without the speaker grill

Features

  • 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).
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) 


1 AES2-1984 noise signal for 2 Hrs, 8Ω
2 Free-field, -10 dB from on-axis sensitivity
3 -6 dB from on-axis, 500 Hz-5 kHz
4 Free-field, on-axis, 2.83V, 1 m
5 Calculated from rated noise voltage and sensitivity