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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

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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

Product Preview

 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

 

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