BACK TO TOP
APPLICATION:
• Ideal for use in closed, vent port or passive-radiator applications where the full range of frequency response and good low frequency is desired. 31NFR is designed to work well in multi-source array applications.
31NFR
SPECS PDF
DRAWING PDF
<< BACK
NEO FULL RANGE
Ordering code: 31NFR-229
CONT. POWER
SENS.
Fs
Freq. Range
VC Dia.
IN-OUT WOUND
VC Wire
Cone /
Surround
Magnet
Type
50 WATTS
84 dB
94 Hz
70-
20,000 Hz
1"
OUTSIDE
CCAW
Aluminum
RUBBER
Neodymium
The 31NFR is a high efficiency, (84dB 1watt / 1 meter) 3-inch full range speaker with very linear frequency response characteristics and high power handling capability. The 31NFR uses a lightweight anodized aluminum cone assembly along with a NBR single roll geometry surround. The combination provides high efficiency, extended high frequency response and sustained output under extreme conditions, while generating low harmonic distortion over the working range of this speaker.
Magnetic circuit design
REDCATT engineers have developed neodymium based magnetic circuit, capable of delivering the highest level of performance, providing a consistent, high integrity magnetic flux gap, low distortion characteristic. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability. Copper demodulation cup is assembled over the t-pole.
GENERAL SPECIFICATIONS:
Nominal Diameter
76 mm (3 in.)
Rated Impedance
8 ohm
Power Handling
AES Power
25 watts
PROGRAM Power
50 watts
PEAK Power
100 watts
Power Compression
@ -10dB
0.7 dB
@ 0dB
0.95 dB
@ Max. Power
1.7 dB
Max. Recommended X-OVER Freq.
--- N/A ---
Recommended Enclosure Volume
0.5 - 2 Liters
Cone Design / Cone Material
Exp. Geometry, aluminum
Voice Coil Diameter / Winding
1" / CCAW, outside
Voice coil Winding Height
5.7 mm
Front Plate Thickness
4.0 mm
T/S Parameters:
Fs
94 Hz
Re
6.41 Ohm
Sd
28.3 cm2 (4.39 in.2)
Qms
5.4
Qes
0.85
Qts
0.74
Vas
1.1 Liters
Mms
2.9 g
Bl product (Force Factor)
3.6 Tm
Peak To Peak Displacement
5 mm
Le (mH @ 1kHz)
0.17
Mechanical Parameters:
Overall Diameter
77.7 mm
No. Of Mounting Holes
4
Bolt Circle Diameter
83 mm
Front Mount Baffle cutout
71.5 mm Nominal
Rear Mount Baffle cutout
70.0 mm Nominal
Total Depth
55 mm
Flange and gasket thickness
--- N/A ---
Packaging info:
Net Weight
0.21 kg
Shipping Weight
Industrially packed
Packaging Dimensions
Industrially packed