FW305
30cm woofer
30cm woofer unit for a wide range of small to large enclosures.
Features
◎Diaphragm
A pulp hybrid curved and straight cone with concentric ribs for increased rigidity is combined with an ether-based urethane foam uproll edge. The well-balanced diaphragm, which combines moderate rigidity and internal loss, reproduces solid bass to support the entire music.
◎Frame
To support the heavy magnetic circuit and accurately transmit the amplitude of the diaphragm to the air
A highly rigid aluminum die-cast frame is used.
◎Magnetic circuit
A large φ156mm ferrite magnet is used in the magnetic circuit with a T-type pole piece that smoothes the magnetic flux flow and reduces distortion during voice coil amplitude to ensure sufficient driving force.
◎Voice coil
Long voice coil with high input resistance (Xmax:4.75mm)
◎Input terminal
Large threaded terminal posts are used to accommodate banana plugs.
◎Rubber gasket
A rubber gasket covering the entire outer surface of the frame is installed.
This contributes to clear and habit-free sound quality by controlling sound radiation from areas other than the diaphragm.
Specifications
Main Specifications
| impedance | 8Ω |
|---|---|
| Lowest resonant frequency | 25Hz |
| Playback frequency band | fo~3.5kHz |
| Output Sound Pressure Level | 95dB/W(1m) |
| input | 125W(Mus.) |
| mo | 55g |
| Qo | 0.31 |
| Effective vibration radius (a) | 12.95cm |
| Magnet mass | 1,410g |
| gross mass | 5.0kg |
| Baffle opening dimensions | Φ280mm |
| Standard enclosure method | bass-reflex |
| Standard Enclosure Inner Volume | 75 l |
| Recommended crossover frequency | Below 2kHz |
frequency response
Enclosure Dimensions
External Dimensions
List of External Dimensions
| model number | A | B | c | D | E | f | g | Baffle mounting holes |
|---|---|---|---|---|---|---|---|---|
| FW108N | 100mm dia. | φ128 | 72 | 8-φ 5 hole | Dia. 115 | 100 mm dia. |
64.5 |
φ105mm |
| FW168N | φ146 | 190mm dia. | 98 | 8-φ 6 hole | φ174 | Φ145 |
87 |
φ151 |
| FW208N | diameter (units assumed, esp. mm) | 230mm dia. | 108.75 | 8-φ 6 hole | φ213 | Φ156 |
94.5 |
185mm dia. |
| FW305 | Dia. 278 | φ317 | 122.5 | 8-φ 7 hole | φ294 | - |
107.5 |
280mm dia. |
| FW405N | 350mm dia. | φ395 | 180 | 8-ø 9.5 long hole | 372.5 mm dia. | Φ200 |
162 |
φ357 |
| FW800HS | diameter (units assumed, esp. mm) | 800mm dia. | 291 | 8-φ 8 hole | φ770mm | - | - | 750mm dia. |
| FW168HR | 145mm dia. | 190mm dia. | 97 | 8-φ 6 hole | φ174 | Φ145 |
85 |
φ151 |
| M100HR-W | 100mm dia. | φ128 | 74.8 | 4-φ 5 hole | Dia. 115 | 100 mm dia. |
65.5 |
*Refer to the diagram. |
| W300AII | Dia. 278 | φ317 | 150 | 8-φ 7 hole | φ294 | Φ140 |
131.5 |
280mm dia. |
| W400A-HR | 350mm dia. | 395 mm dia. | 242 | 8-ø 9.5 long hole | 372.5 mm dia. | Φ194 |
224 |
φ357 |
Unit:mm
*This product complies with the European RoHS Directive.
