M100HR-W
10cm aluminum alloy HR diaphragm wooferThis woofer is designed to enjoy pure audio by self-production while inheriting the sound creation of the monitor concept that began with the RS-N2. The combination of an aluminum alloy HR diaphragm and a pure magnesium ridge dome diaphragm brings new excitement to the world of craftsmanship.
Features
The diaphragm is made of aluminum alloy molded into an HR shape, which disperses the resonance caused by split vibrations and maximizes the sound quality of the high propagation speed diaphragm while providing a habit-free fundamental bandwidth and high-speed, powerful low-frequency reproduction.
The up-down roll tangential shape disperses the edge’s intrinsic resonance, and the low-density, lightweight foam rubber with high internal loss (Tanδ ) significantly reduces the specific intrinsic sound.
Corrugated Double Damper The HR diaphragm is securely held in place by a double damper to prevent loss of linearity even under high strokes.
Large ferrite magnet magnetic circuit The magnetic circuit uses a φ100mm, t 20mm ferrite magnet to ensure sufficient magnetic flux density. The surface treatment of the metal parts of the magnetic circuit is nickel-plated (with copper undercoating).
A highly rigid aluminum die-cast frame is used to firmly support the large ferrite magnetic circuit and prevent unwanted vibrations from being transmitted to the enclosure.
Specifications
Main Specifications
impedance | 4Ω |
---|---|
Lowest resonant frequency | 72Hz |
Playback frequency band | f0 to 10kHz
|
Output Sound Pressure Level | 85.5dB/W(1m) |
Input (MUS) | 100W (MUS) |
mo | 7.3g |
Q0 | 0.4 |
Effective vibration radius | 4.0cm |
Magnet mass | 633g
|
gross mass | 1.57kg |
Baffle hole dimensions | (Φ102mm ) |
Standard enclosure method | bass-reflex |
Recommended crossover frequency | Below 5 kHz |
frequency response
![](https://www.fostex.jp/cms/wp-content/uploads/2014/08/M100HRW_F1.jpg)
External dimensions
![](https://www.fostex.jp/cms/wp-content/uploads/2014/08/2c62807e300d434e9f2d3307f7dc9ad9.jpg)
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. | 395 mm dia. | 180 | 8-ø 9.5 long hole | 372.5mm 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 |
*This product complies with the European RoHS Directive.