LF
Fullrange
8"
8FR
Code: 8FRX4-551A
Full-Range/8inch/Ferrite/Paper/4ohm
Key Features
- lighweight, yet strong paper cone reinforced by bamboo fibers
- working range up to 15kHz
- aesthetics tuned for moder hi-fi look
Quick Specs
Impedance
4 Ω
Program Power
60 W
Sensitivity
93.00 dB
Fs
53.00 Hz
Magnet
Ferrite
Voice Coil
40.6 mm
Design Notes
8FR was developed for Hi-Fi applications where single point audio source is required. Our engineers designed the cone to be lightweight, yet strong, using our new paper pulp reinforced by bamboo fibers. The driver sports wizard cone that extends the working range up to 15kHz, paired with bullet style phase plug. Combination of these two key features ensures smooth frequency response and an optimal sound reproduction on and off axes.
Magnetic circuit was design to deliver robust B field across the whole range of working frequencies. Additional copper shorting cup further improves the driver behavior in mid-high working region.
The aesthetics of this driver were tuned to support modern hi-fi system designs, where the driver can be exposed to the end user. Distinctive colors ensures the driver can be featured as part of the overall industrial design.
Magnetic circuit was design to deliver robust B field across the whole range of working frequencies. Additional copper shorting cup further improves the driver behavior in mid-high working region.
The aesthetics of this driver were tuned to support modern hi-fi system designs, where the driver can be exposed to the end user. Distinctive colors ensures the driver can be featured as part of the overall industrial design.
Specifications
General Specs
Nominal Diameter
8"
Rated Impedance
4 Ohm
Magnet
Ferrite
Basket Material
Aluminum
Power Handling
AES Power
30 W
Continuous Power
60 W
Peak Power
120 W
Voice Coil
Diameter
40.6 mm
Former
kapton
Winding Height
17.6 mm
T/S Parameters
Resonant Frequency (Fs)
53.00 Hz
Re
3.80 \u2126
Qes
0.396
Qms
8.47
Qts
0.378
Vas
36.80 liters
Sd
213.80 cm\u00B2
Mms
18.38 grams
Rms
0.72
Cms
0.4900
Bl
7.86 T\u00B7m
Le
0.080 mH
Sensitivity
93.00 dB
Design Details
Surround Material
fabric
Cone/Dome Material
Paper
Spider
Nomex
T-Plate
6 mm
Xmax (peak)
5.8 mm
Xmech
11.8 mm
Overall Diameter
210.00 mm
Bolt Circle Diameter
195.50 mm
Baffle Cutout Dia.
186.88 mm
Mounting Holes
8
Depth (flange to rear)
91.80 mm
Net Weight
2.55 kg
Ordering Codes
Product Code
8FRX4-551A
Downloads
Frequency Response & Impedance
2D Drawing
Enclosure Recommendations
Recommended enclosure alignments (bass reflex): - 20 liters tuned to 61 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 56 Hz, HP filter 53 Hz - 24 liters tuned to 56 Hz: balanced response, general-purpose (recommended); -3 dB approx. 52 Hz, HP filter 46 Hz - 24 liters tuned to 50 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 42 Hz, HP filter 38 Hz
Frequently Asked Questions
- - lighweight, yet strong paper cone reinforced by bamboo fibers
- - working range up to 15kHz
- - aesthetics tuned for moder hi-fi look
Recommended enclosure alignments (bass reflex): - 20 liters tuned to 61 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 56 Hz, HP filter 53 Hz - 24 liters tuned to 56 Hz: balanced response, general-purpose (recommended); -3 dB approx. 52 Hz, HP filter 46 Hz - 24 liters tuned to 50 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 42 Hz, HP filter 38 Hz
High-efficiency vented pa mid-woofer or bass-mid cabinet
AES Power: 30 W,
Continuous: 60 W,
Peak: 120 W.
Sensitivity: 93.00 dB (1W/1m).
