LF
Fullrange
3.5"
35FR
Code: 35FRX4-155
Full-Range/3.5inch/Ferrite/Paper/25W/4ohm
Key Features
- Mighty driver delivering the highest performance
- Very good LF extension, large peak to peak cone displacement
Quick Specs
Impedance
4 Ω
Program Power
50 W
Sensitivity
83.70 dB
Fs
67.00 Hz
Magnet
Ferrite
Voice Coil
25.4 mm
Design Notes
35FR was developed as full-range ferrite magnet driver. It has an excellent HF extension and provides extended level of LF performance.
The driver was designed for usage in sealed speaker systems. It could be in column speakers, 2-way or 1-way speakers. It is also possible design a speaker system with a passive radiator to further extend the low frequency range.
Voice coil is wound with copper hi temperature wire directly on the aluminum former, ensuring good power handling and high temperature stability.
This driver brings good balance between performance and cost.
Depending on intended usage, we can deliver the driver either as 4 or 8 ohm version.
The driver was designed for usage in sealed speaker systems. It could be in column speakers, 2-way or 1-way speakers. It is also possible design a speaker system with a passive radiator to further extend the low frequency range.
Voice coil is wound with copper hi temperature wire directly on the aluminum former, ensuring good power handling and high temperature stability.
This driver brings good balance between performance and cost.
Depending on intended usage, we can deliver the driver either as 4 or 8 ohm version.
Specifications
General Specs
Nominal Diameter
3.5"
Rated Impedance
4 Ohm
Magnet
Ferrite
Basket Material
Steel
Power Handling
AES Power
25 W
Continuous Power
50 W
Peak Power
100 W
Voice Coil
Diameter
25.4 mm
Winding Wire
Copper
Former
Aluminum
Winding Height
6.9 mm
T/S Parameters
Resonant Frequency (Fs)
67.00 Hz
Re
3.50 \u2126
Qes
0.370
Qms
4.35
Qts
0.340
Vas
1.60 liters
Sd
38.50 cm\u00B2
Mms
7.50 grams
Rms
0.73
Cms
0.7500
Bl
5.46 T\u00B7m
Le
0.140 mH
Sensitivity
83.70 dB
Design Details
Surround Material
NBR
Cone/Dome Material
Paper CF
Spider
Nomex
T-Plate
8 mm
Xmax (peak)
0.55 mm
Xmech
7.45 mm
Overall Diameter
93.00 mm
Bolt Circle Diameter
101.00 mm
Baffle Cutout Dia.
85.00 mm
Mounting Holes
4
Depth (flange to rear)
51.00 mm
Net Weight
0.85 kg
Ordering Codes
Product Code
35FRX4-155
Downloads
Frequency Response & Impedance
2D Drawing
Enclosure Recommendations
Recommended enclosure alignments (bass reflex): - 1 liters tuned to 75 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 69 Hz, HP filter 67 Hz - 1 liters tuned to 66 Hz: balanced response, general-purpose (recommended); -3 dB approx. 56 Hz, HP filter 56 Hz - 1 liters tuned to 57 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 48 Hz, HP filter 45 Hz
Frequently Asked Questions
- - Mighty driver delivering the highest performance
- - Very good LF extension, large peak to peak cone displacement
Recommended enclosure alignments (bass reflex): - 1 liters tuned to 75 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 69 Hz, HP filter 67 Hz - 1 liters tuned to 66 Hz: balanced response, general-purpose (recommended); -3 dB approx. 56 Hz, HP filter 56 Hz - 1 liters tuned to 57 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 48 Hz, HP filter 45 Hz
Compact column pa, ceiling arrays, 2-way portable products; weight-critical installs
AES Power: 25 W,
Continuous: 50 W,
Peak: 100 W.
Sensitivity: 83.70 dB (1W/1m).
