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-midrange speaker, 350 W, 8 Ω

• 30 cm (12") speaker with high-performance neodymium drive system
• Deformation-resistant, kevlar-reinforced, 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 2.6 kg only

Parameters

Impedance (Z): 8 Ω

Frequency range: f3-4,000 Hz

Resonant frequency (fs): 58 Hz

Power rating (RMS): 350 W

Peak music power output (MAX): 700 W

Sensitivity: 98 dB/W/m

Suspension compl. (Cms): 0.128 mm/N

Moving mass (Mms): 57.2 g

Mech. Q factor (Qms): 2.5

Electr. Q factor (Qes): 0.326

Total Q factor (Qts): 0.29

Equivalent volume (Vas): 51 l

DC resistance (Re): 5.69 Ω

Force factor (BxL): 19.54 Tm

Voice coil induct. (Le): 0.78 mH

Voice coil diameter: Ø 75 mm

Voice coil former: glass fibre

Linear excursion (X_MAX): ± 4.0 mm

Eff. cone area (Sd): 540 cm2

Mounting cutout: Ø 286 mm

Mounting depth: 125 mm

Mounting hole diameter: Ø 298-304 mm

Dimensions: Ø 318 mm x 137 mm

Outside diameter: Ø 318 mm

Width: Ø 318 mm

Depth: 137 mm

Admiss. ambient temp.: 0-40 °C

Weight: 2.6 kg

Packing unit: 1

Type of speaker: 12"