LF
Fullrange
4"
4FR
Code: 4FRX4-322
Full-Range/4inch/Ferrite/Paper/30W/4ohm
Key Features
- Optimized full-range performance
- Good low frequency behavior
- Affordable design
Quick Specs
Impedance
4 Ω
Program Power
60 W
Sensitivity
84.14 dB
Fs
79.00 Hz
Magnet
Ferrite
Voice Coil
25.4 mm
Design Notes
4FR ferrite based mid-woofer was developed for applications where small size mid-woofer is required. Low resonant frequency and large cone excursion delivers seizable amounts of low frequencies. Yet, this driver delivers very good performance in mid-high frequency range.
Our engineers have chosen lightweight, yet strong, paper cone with rubber surround. Cone optimized shape brings remarkable strength of the piston and greatly improves harmonic distortion artifacts.
Overall this model delivers very good performance and is well balanced between performance - cost.
Our engineers have chosen lightweight, yet strong, paper cone with rubber surround. Cone optimized shape brings remarkable strength of the piston and greatly improves harmonic distortion artifacts.
Overall this model delivers very good performance and is well balanced between performance - cost.
Specifications
General Specs
Nominal Diameter
4"
Rated Impedance
4 Ohm
Magnet
Ferrite
Basket Material
Steel
Power Handling
AES Power
30 W
Continuous Power
60 W
Peak Power
120 W
Voice Coil
Diameter
25.4 mm
Winding Wire
Copper
Former
Aluminum
Winding Height
10.6 mm
T/S Parameters
Resonant Frequency (Fs)
79.00 Hz
Re
3.50 \u2126
Qes
0.610
Qms
3.47
Qts
0.520
Vas
1.80 liters
Sd
50.30 cm\u00B2
Mms
7.90 grams
Rms
1.13
Cms
0.5100
Bl
4.80 T\u00B7m
Le
0.090 mH
Sensitivity
84.14 dB
Design Details
Surround Material
NBR
Cone/Dome Material
Paper CF
Spider
Nomex
T-Plate
5 mm
Xmax (peak)
2.8 mm
Xmech
7.8 mm
Overall Diameter
105.50 mm
Bolt Circle Diameter
106.00 mm
Baffle Cutout Dia.
93.60 mm
Mounting Holes
4
Depth (flange to rear)
56.00 mm
Net Weight
0.77 kg
Ordering Codes
Product Code
4FRX4-322
Downloads
Frequency Response & Impedance
2D Drawing
Enclosure Recommendations
Recommended enclosure alignments (sealed): - 1.1 liters (Qtc 0.85): compact, punchy character; system resonance approx. 128 Hz - 2.1 liters (Qtc 0.707): maximally flat Butterworth response (recommended); system resonance approx. 108 Hz - 5.4 liters (Qtc 0.6): extended response, smooth gradual rolloff; system resonance approx. 91 Hz
Frequently Asked Questions
- - Optimized full-range performance
- - Good low frequency behavior
- - Affordable design
Recommended enclosure alignments (sealed): - 1.1 liters (Qtc 0.85): compact, punchy character; system resonance approx. 128 Hz - 2.1 liters (Qtc 0.707): maximally flat Butterworth response (recommended); system resonance approx. 108 Hz - 5.4 liters (Qtc 0.6): extended response, smooth gradual rolloff; system resonance approx. 91 Hz
Pa column midrange, small two-way monitors; weight-critical installs
AES Power: 30 W,
Continuous: 60 W,
Peak: 120 W.
Sensitivity: 84.14 dB (1W/1m).
