41NFR 41NFR
LF Fullrange 4"

41NFR

Code: 41NFRX16-464A

Full-Range/4inch/Neo/Paper/40W/16ohm

Key Features

  • Full-range FREQUENCY RESPONSE
  • Extended LF response
  • Front or rear mounting

Quick Specs

Impedance

16 Ω

Program Power

80 W

Sensitivity

90.30 dB

Fs

98.00 Hz

Voice Coil

25.4 mm

Design Notes

41NFR was introduced as part of our new range of smaller transducers. The model is focusing on improvements in frequency response, both in LF and Mid-Freq. Powerful neodymium ring based magnetic structure delivers the highest levels of moving force onto the voice coil with minimum distortion artifacts.
The cone and rubber surround were further FEM modeled and deliver incredible performance.
41NFR was designed for column speakers, micro line-array systems and two-way audio systems. Due to its good performance in high frequencies, this driver can be used without HF unit, which opens new opportunities for the system engineers to design compact, yet good sounding products.
Our newly developed basket with typical REDCATT shapes, utilizes tall front EVA gasket and 1mm rear gasket. The driver can be thus mounted from both sides of the baffle.

Specifications

General Specs

Nominal Diameter 4"
Rated Impedance 16 Ohm
Basket Material Steel

Power Handling

AES Power 40 W
Continuous Power 80 W
Peak Power 160 W

Voice Coil

Diameter 25.4 mm
Winding Wire Copper
Former kapton
Winding Height 11.3 mm

T/S Parameters

Resonant Frequency (Fs) 98.00 Hz
Re 12.20 \u2126
Qes 0.400
Qms 5.05
Qts 0.370
Vas 2.10 liters
Sd 56.75 cm\u00B2
Mms 5.40 grams
Rms 0.66
Cms 0.4900
Bl 10.00 T\u00B7m
Le 0.580 mH
Sensitivity 90.30 dB

Design Details

Surround Material NBR
Cone/Dome Material Paper CF
Spider Nomex
T-Plate 5 mm
Xmax (peak) 3.15 mm
Xmech 8.15 mm
Overall Diameter 104.50 mm
Bolt Circle Diameter 106.30 mm
Baffle Cutout Dia. 92.20 mm
Mounting Holes 4
Depth (flange to rear) 51.20 mm
Net Weight 0.54 kg

Ordering Codes

Product Code 41NFRX16-464A

Frequency Response & Impedance

Frequency response of 41NFR

2D Drawing

2D drawing of 41NFR

Enclosure Recommendations

Recommended enclosure alignments (bass reflex):
- 1 liters tuned to 113 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 104 Hz, HP filter 105 Hz
- 1 liters tuned to 100 Hz: balanced response, general-purpose (recommended); -3 dB approx. 92 Hz, HP filter 90 Hz
- 2 liters tuned to 87 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 74 Hz, HP filter 75 Hz

Frequently Asked Questions

  • - Full-range FREQUENCY RESPONSE
  • - Extended LF response
  • - Front or rear mounting
Recommended enclosure alignments (bass reflex):
- 1 liters tuned to 113 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 104 Hz, HP filter 105 Hz
- 1 liters tuned to 100 Hz: balanced response, general-purpose (recommended); -3 dB approx. 92 Hz, HP filter 90 Hz
- 2 liters tuned to 87 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 74 Hz, HP filter 75 Hz
Pa column midrange, small two-way monitors; weight-critical installs
AES Power: 40 W, Continuous: 80 W, Peak: 160 W. Sensitivity: 90.30 dB (1W/1m).

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