Specification Sheet - Mod 12-70
12" - 70 W Mod Series Loudspeaker
| General Characteristics | ||
|---|---|---|
| Nominal Overall Diameter | 306 mm | 12 in |
| Nominal Voice Coil Diameter | 38 mm | 1.5 in |
| Magnet Weight | 640 g | 23 oz |
| Overall Weight | 2.4 kg | 5.29 lbs |
| Flux Density | 1.16 T | |
| Thiele-Small Parameters |
4Ω
|
8Ω
|
16Ω
|
||
|---|---|---|---|---|---|
| Voice Coil DC Resistance | RE | 3.53 | 5 | 12 | Ω |
| Resonance Frequency | ƒS | 74 | 78 | 83 | Hz |
| Mechanical Q Factor | QMS | 14.63 | 13.77 | 7.84 | |
| Total Q Factor | QTS | 0.9 | 0.89 | 1.04 | |
| Mechanical Moving Mass | MMS | 30.6 | 29.6 | 30.3 | g |
| Mechanical Compliance | CMS | 151 | 141 | 125 | µm/N |
| Force Factor | BxL | 7.23 | 8.28 | 12.56 | Wb/m |
| Equivalent Acoustic Volume | VAS | 51.7 | 48.1 | 42.4 | lt. |
| Maximum Linear Displacement | XMAX | ±1.5 | ±1.5 | ±1.5 | mm |
| Reference Efficiency | nO | 2.1 | 2.09 | 1.88 | % |
| Diaphragm Area | SD | 490.9 | 490.9 | 490.9 | cm2 |
| Losses Electrical Resistance | RES | 51 | 67.7 | 80 | Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.43 | 0.58 | 1 | mH |
| Electrical Q Factor | QES | 0.96 | 0.95 | 1.20 | |
| Constructive Characteristics | ||
|---|---|---|
| Magnet | Ferrite | |
| Voice Coil Winding | Copper | |
| Voice Coil Former | Epotex | |
| Cone Material | Paper | |
| Surround Material | Integrated Paper | |
| Dust Dome Material | Non-treated Cloth | |
| Basket Material | Pressed Sheet Steel | |
| Electrical Characteristics |
4Ω
|
8Ω
|
16Ω
|
||
|---|---|---|---|---|---|
| Nominal Impedance | 4 | 8 | 16 | Ω | |
| Rated Power | 70 | 70 | 70 | W | |
| Musical Power | 140 | 140 | 140 | W | |
| Sensitivity@1W,1m | 96 | 97.5 | 96 | dB | |
Product Dimensions
