Specification Sheet - Mod 8-20
8" - 20 W Mod Series Loudspeaker
| General Characteristics | ||
|---|---|---|
| Nominal Overall Diameter | 207 mm | 8 in |
| Nominal Voice Coil Diameter | 25 mm | 0.98 in |
| Magnet Weight | 160 g | 6 oz |
| Overall Weight | 0.68 kg | 1.5 lbs |
| Flux Density | 1 T | |
| Thiele-Small Parameters |
4Ω
|
8Ω
|
||
|---|---|---|---|---|
| Voice Coil DC Resistance | RE | 3.26 | 6.5 | Ω |
| Resonance Frequency | ƒS | 111.2 | 119.4 | Hz |
| Mechanical Q Factor | QMS | 19.23 | 19.88 | |
| Total Q Factor | QTS | 1.74 | 2.24 | |
| Mechanical Moving Mass | MMS | 10.1 | 10.3 | g |
| Mechanical Compliance | CMS | 204 | 173 | µm/N |
| Force Factor | BxL | 3.47 | 4.45 | Wb/m |
| Equivalent Acoustic Volume | VAS | 13.1 | 11.1 | lt. |
| Maximum Linear Displacement | XMAX | ±1.5 | ±1 | mm |
| Reference Efficiency | nO | 0.9 | 0.72 | % |
| Diaphragm Area | SD | 213.8 | 213.8 | cm2 |
| Losses Electrical Resistance | RES | 32.8 | 51.1 | Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.3 | 0.4 | mH |
| Electrical Q Factor | QES | 1.91 | 2.52 | |
| 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
|
||
|---|---|---|---|---|
| Nominal Impedance | 4 | 8 | Ω | |
| Rated Power | 20 | 20 | W | |
| Musical Power | 40 | 40 | W | |
| Sensitivity@1W,1m | 93.2 | 93.2 | dB | |
Product Dimensions
