12" | 121FIND
Ferrite mid-woofer
Key features:
- EXTENDED FREQUENCY RESPONSE
- Proven cost effective design
- Nomex spider, water-repellent & non-flammable paper cone
Design notes:
The 121FIND is a high efficiency, (96 dB 1watt/ 1 meter) 12inch woofer with incredibly linear frequency response characteristics, high power handling capability while generating low harmonic distortion artifacts. 121FIND uses lightweight cone which movement is controlled by “M” shaped surround. Pistonic behavior and the long term stability
Is supported by Nomex spider. The woofer cone is treated to withstand harsh environments and high humidity.
The 121FIND was design for its best use in the 2-way applications, where excellent midrange response is required. Speaker provides good low frequency extension and delivers seizable amounts of low frequencies.
The metal parts in the speaker are coated and tested to ensure extreme weatherization protection.
Specifications:
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General specs |
Nominal Diameter: |
12 in. |
Rated Impedance: |
4 Ohm |
Power handling |
AES Power: |
250 Watts |
Program Power: |
500 Watts |
Voice Coil |
Diameter: |
2 in. |
Winding wire: |
CCAW |
Former: |
Glass Fiber |
Winding height: |
11.7 mm |
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T/S Parameters |
Resonant frequency: |
59 Hz |
Re: |
3.1 ohm |
Qes: |
0.56 |
Qms: |
7.34 |
Qts: |
0.52 |
Vas: |
n/a liters |
Sd: |
n/a cm2 |
Mms: |
49.1 grams |
Bl: |
10.2 |
Le: |
0.32 mH |
Sensitivity: |
96.4 dB |
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Design details |
Surround Material: |
Fabric |
Cone material: |
Paper |
Spider: |
Nomex |
Plate thickness: |
8 mm |
Peak to peak linear cone Displacement |
13 mm |
Overall diameter: |
320 mm |
Bolt circle diameter: |
302 mm |
Baffle cutout dia.: |
282 mm |
Number of mounting holes: |
8 |
Depth (flange to rear): |
124 mm |
Net weight: |
4.6 kg |
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Frequency response & lmpedance
2D drawing