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. PA bass speaker, 450 W, 8 Ω

• 38 cm (15") speaker with high-performance neodymium drive system
• Deformation-resistant, kevlar-reinforced and low-resonance paper cone
• 75 mm (3") 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)
• Diecast aluminium basket and a low weight of 4 kg only

Parameters

Impedance (Z): 8 Ω

Frequency range: f3-3,000 Hz

Resonant frequency (fs): 34 Hz

Power rating (RMS): 450 W

Peak music power output (MAX): 900 W

Sensitivity: 98 dB/W/m

Suspension compl. (Cms): 0.218 mm/N

Moving mass (Mms): 97.2 g

Mech. Q factor (Qms): 3.85

Electr. Q factor (Qes): 0.262

Total Q factor (Qts): 0.25

Equivalent volume (Vas): 226 l

DC resistance (Re): 5.58 Ω

Force factor (BxL): 21.24 Tm

Voice coil induct. (Le): 1.2 mH

Voice coil diameter: Ø 75 mm

Voice coil former: glass fibre

Linear excursion (X_MAX): ± 5.0 mm

Eff. cone area (Sd): 860 cm2

Mounting cutout: Ø 351 mm

Mounting depth: 150 mm

Mounting hole diameter: Ø 367-373 mm

Dimensions: Ø 386 mm x 162 mm

Outside diameter: Ø 386 mm

Width: Ø 386 mm

Depth: 162 mm

Admiss. ambient temp.: 0-40 °C

Weight: 3.98 kg

Packing unit: 1

Type of speaker: 15"