3" | 30FF
Ferrite Full-Range
Key features:
- ULL-RANGE FREQUENCY RESPONSE
- AFFORDABLE SMALL DRIVER THAT FITS ALL BUDGETS
- VERY POPULAR IN ARRAY AND COLUMN APPLICATIONS
Design notes:
The 30FF is a high efficiency, (86dB1watt / 1 meter) 3-inch full range speakerwith linear frequency response characteristics and high power handling capabilitywhile generating low harmonic distortionartifacts. The 30FF uses a lightweight exponential pressed cone assembly along witha NBR single roll geometry surround. Thecombination provides remarkable strength,high efficiency and sustained output underextreme conditions.Power HandlingAt the core of the 30FF is it’s voice coiltechnology featuring a Kapton formermaterial capable of withstanding peaktemperatures in excess of 240C, well beyond the thermal requirements of modernprofessional audio systems and providingoptimal structural strength and thermalcharacteristics. Former strength providesthe ideal transfer of power between thevoice coil and the cone assembly andassists in reducing distortion artifacts. Bycombining this material with state of theart adhesives and our winding voice coiltechnology, the 30FF delivers very highperformance. The best application is in columnspeakers, two-way and multi-way audiosystems. Due to its good HF extension, theHF units are not required.
Specifications:
-
General specs |
Nominal Diameter: |
3 in. |
Rated Impedance: |
8 Ohm |
Power handling |
AES Power: |
20 Watts |
Program Power: |
40 Watts |
Voice Coil |
Diameter: |
0.75 in. |
Winding wire: |
CCAW |
Former: |
kapton |
Winding height: |
6.5 mm |
-
T/S Parameters |
Resonant frequency: |
119 Hz |
Re: |
5.6 ohm |
Qes: |
0.98 |
Qms: |
3.87 |
Qts: |
0.78 |
Vas: |
0.81 liters |
Sd: |
28.27 cm2 |
Mms: |
2.4 grams |
Bl: |
3.25 |
Le: |
0.04 mH |
Sensitivity: |
85.1 dB |
-
Design details |
Surround Material: |
Rubber |
Cone material: |
Paper |
Spider: |
Nomex |
Plate thickness: |
4 mm |
Peak to peak linear cone Displacement |
3.7 mm |
Overall diameter: |
79 mm |
Bolt circle diameter: |
86 mm |
Baffle cutout dia.: |
77 mm |
Number of mounting holes: |
4 |
Depth (flange to rear): |
46.9 mm |
Net weight: |
0.47 kg |
Ordering codes: |
4 ohm version: |
n/a |
8 ohm version: |
30FFX8-264B |
16 ohm version: |
n/a |
Frequency response & lmpedance
2D drawing