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NTR8-2011D

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Professional PA Speakers
of the CELESTION NTR series with neodymium drives represent where we are today with PA speaker technology. Developed with the aid of analysis methods and state-of-the-art computer simulation, these speakers provide an excellent radiation with lowest harmonic distortions at a very low weight.
Professional PA bass-midrange speaker, 200 W, 8 Ω
  • 20 cm (8") speaker with high-performance neodymium drive system
  • Coated, deformation-resistant, kevlar-reinforced, low-resonance paper cone
  • 50 mm (2") heat-resistant voice coil
  • Especially developed thermal management of the drive system for preventing thermal compression and overheating
  • Multi-roll rubber surround for an excellent linearity and progressive control in case of excessive cone excursion
  • Very low harmonic distortion (THD)
  • Octagonal basket for minimum distance between the speakers, especially for line array systems
  • Diecast aluminium basket and a low weight of 1.52 kg only
Impedance (Z) 8 Ω
Line technique -
Frequency range f3-6000 Hz
Resonant frequency (fs) 80 Hz
Rec. crossov. frequ. (fmax.) (12 dB/oct.) -
Power rating 200 W
Peak music power output 400 W
Sensitivity 94 dB/W/m
Max. rated SPL -
Max. voltage -
Radiation angle, horizontal -
Radiation angle, vertical -
Suspension compl. (Cms) 0,16 mm/N
Moving mass (Mms) 25,3 g
Mech. Q factor (Qms) 1,33
Electr. Q factor (Qes) 0,59
Total Q factor (Qts) 0,41
Equivalent volume (Vas) 11,3 l
DC resistance (Re) 5,85 Ω
Force factor (BxL) 11,22 Tm
Voice coil induct. (Le) 0,59 mH
Voice coil diameter Ø50 mm
Voice coil former polyamide
Linear excursion (XMAX) ±4,0 mm
Eff. cone area (Sd) 216 cm2
Magnet weight -
Magnet diameter -
Mounting cutout Ø187 mm
Mounting depth 90 mm
Mounting hole diameter Ø210 mm
Hole spacing X-axis -
Hole spacing Y-axis -
Dimensions 210 x 210 x 100 mm
Outside diameter Ø225 mm
Width 210 mm
Height 210 mm
Depth 100 mm
Protective class -
Admiss. ambient temp. 0-40 °C
Weight 1,52 kg
Sales unit 1
Type of speaker 8 \"
Trimite
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