Haut-parleur Coaxial RCF CX15N351
[CX15N351-8+8] Avis/Critiques

This CX15N351 is designed to provide an excellent frequency response linearity with very low distortion.

This coaxial use a strongest unique neodymium magnetic structure that guarantee high dynamic and sensitivity for both components. The mid-bass section use a 3,5” voice coil design provides a very high power handling, especially recommended in comparison to a standard 3" voice coil, demodulation ring get a fastest time response and lower distortion. The compression driver use a 2.5-inch diaphragm with a 1.4 inch throat featuring several state of the art technologies. The diaphragm and suspension are formed from 0.05mm thick pure titanium. The unique magnetic structure allow to get a single point source that providing coherent wave front.

Applications :
The CX15N351 is a 15" – 1.4" coaxial transducer designed for use in compact reflex enclosures and stage monitors.  Is a ideal for use in applications where is required a very high efficiency and linearity with high power handling.

Features Mid-bass :
3,5 - inch Inside/Outside copper voice coil for Mid-bass
900 continuous program power handling
100 dB Sensitivity
Demodulation ring
Single point source
Features Driver
2,5 – inch Direct Drive “Voice Coil Assembly”
3-inch Diaphragm, 1.4-inch Exit Throat/Pure Titanium
180 continuous program power handling
3-slot , optimised geometry phase plug
Copper inductance ring for extended response
Vented, damped, low distortion,
Veriable profile suspension System

CX GENERAL SPECIFICATIONS
Nominal Diameter  Woofer, 380/15 - Driver, 35.5/1.4  mm/inch 
Rated Impedance  8  Ohm 
Program Power  Woofer, 900 - Driver, 180  Watts 
Power handling capacity  Wofer, 450 - Driver, 90  Watts 
Sensitivity 1W, 1m  Woofer, 101 - Driver, 110  dB 
Frequency Range  Woofer, 40-3000 - Driver, 700-20000  Hz 
Effective Piston Diameter  Woofer, 330/13  mm/inch 
Maximum Excursion Before Damage  Woofer, 9/1.5  mm/inch 
Minimum Impedance  Woofer, 6.8 - Driver, 7.9  Ohm 
Voice Coil Diameter  Woofer, 87/3.4 - Driver, 63.7/2.5  mm/inch 
Voice Coil Material  Woofer, copper - Driver, edgewound A1      
Voice Coil Winding Depth  Woofer, 16.5/0.65      
Number of layers  Woofer, 2 - Driver, 1      
Kind of layer  Woofer, inside/outside - Driver, outside      
Thickness Top Plate Depth  Woofer, 11/0.43  mm/inch 
Cone Material  Woofer, no pressed pulp      
Cone Design  Woofer, curved      
Surround Material  Woofer, polycotton      
Surround Design  Woofer, M-roll      
Diaphragm Material  Driver, pure titanium      
Diaphragm Design  Driver, dome      
Suspension Material  Driver, pure titanium      
Suspension Design  Driver, progressive      
BL Factor  Driver, 10.4  T- m 
Flux Density  Driver, 2.0  T 
Phase Plug Design  Driver, 3 slot      
Phase Plug Material  Driver, aluminium      
Magnetics  Driver, neodymium      
Voice Coil Demodulation  Driver, copper ring      

THIELE - SMALL PARAMETERS
Resonance frequency  Fs  42  Hz 
DC resistance  Re  5.6  Ohm 
Mechanical factor  Qms  4      
Electrical factor  Qes  0.24      
Total factor  Qts  0.22      
BL factor  BL  22.5  T - m 
Effective Moving Mass  Mms  80  gr 
Equivalent Cas air load  Vas  191  liters 
Effective piston area  Sd  0.0855  m2 
Max. linear excursion  Xmax  5.5  mm 
Voice - coil inductance @ 1KHz  Le1k  1.65  mH 
Half-space efficiency  Eff  5.68  % 

MOUNTING INFORMATION
Overall Diameter  393/15.5  mm/inch 
Bolt Circle Diameter  371/14.6  mm 
Bolt Hole Diameter  6.5/0.3  mm/inch 
Front Mount Baffle Cut-out  354/13.9  mm/inch 
Rear Mount Baffle Cut-out  354/13.9  mm/inch 
Depth  164/6.4  mm/inch 
Volume occupied by the driver  3.8/0.13  liters/ft3 

BAFFLE CUTOUT DIAMETER
Net Weight  6.5/14.3  Kg/lbs 
Shipping Weight  7.3/16  Kg/lbs 

Frequency response curve of the loudspeaker taken in a reflex box with an internal volume of 80 litres
tuned at 55 Hz.

Impedance magnitude curve measured in free air.

Notes to Specifications
1 - Program Power is defined as 3 dB greater than AES power.
2 - AES standard.
3 - Sensitivity measurement is based on a 500-2,5 kHz pink noise signal with input power of 2.83V @ 8 Ohms.
4 - Thiele-Small parameters are measured after a 2 hour warm up period running the loudspeaker at full power handling capacity.
5 - The maximum linear excursion is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg the gap depth.
6 - Calculated for front mounting on 18 mm thick board.