FE103NV
10cm full range
The FE103NV is a speaker unit developed as the successor to the FE103En, maintaining the bright and taut tone characteristic of the FE-En series while achieving a three-dimensional sound field expression. It has a sense of spaciousness in bass reproduction, and its delicate and lustrous expression of the mid and high frequencies enables music reproduction filled with a sense of fulfillment.
Features
New cone paper made mainly from super beaten kenaf.
By mixing long and short fibers of non-wood pulp, the paper has moderate internal loss and rigidity, and by mixing chemical fibers and ores as auxiliary materials, it achieves higher propagation speed and rigidity.
Low distortion in the mid-range by using a dovecote-less diaphragm
The weight balance of the diaphragm is unbalanced by the weight of the dove, which causes unequal division resonance in addition to the circular vibration mode of the cone diaphragm, resulting in distortion in the mid-range.
Adoption of pocket-neck damper
The pocket-neck damper method already developed for the FF-WK series is adopted to continue the three-point bonding of the voice coil, damper, and cone paper on the same circumference while achieving the aforementioned dove-less design.
In addition, the shape and material of the damper have been reviewed to achieve more linear amplitude characteristics than those of the En series.
● Gold-plated terminals
Faston 205-type low-loss gold-plated terminals are used for input terminals. In addition to secure joints for speaker cables, this prevents deterioration of sound quality.
Specifications
Main Specifications
| Electrical Parameters | |
|---|---|
| Nominal Impedance | 8.0 ohm |
| Re | 7.7 ohm |
| Le | 0.2 mH |
| fs (F0) | 91.8 Hz |
| Mechanical Parameters | |
| Mms（ M0) | 2.5 g |
| Cms. | 1.2 mm/N |
| Bl | 4.7 N/A |
| Loss Factors | |
| Qms. | 5.20 |
| Qes. | 0.50 |
| Qts (Q0) | 0.46 |
| Other Parameters | |
| SPL (1m/1W) | 88.5 dB |
| Equivalent Diaphragm Radius (a) | 40.0 mm |
| Rated Input | 5 W |
| Max Input | 15 w |
| Overall Diameter | 107 mm square |
| Voice Coil Diameter | 20 mm |
| Reproduction Frequency Response | fs to 22kHz |
| Vas. | 4.3 L |
| Baffle Hole Diameter | 93 mm dia. |
| Weigt. | 566g |
frequency response
External dimensions
List of External Dimensions
| model number | A | B | C | D | E | f | g | Baffle mounting holes |
|---|---|---|---|---|---|---|---|---|
| FE103NV | φ92 | □107 | 47.8 | 4-5x 7 long holes | 115mm dia. | Φ80 | 43.2 | diameter (units assumed, esp. mm) |
| FE83NV | 70mm dia. | □83 | 46.4 | 4-4x 6 long holes | diameter (mm) | Φ60 | 42.5 | diameter (mm) |
| FE83En | 70mm dia. | φ83 | 45.3 | 4-4x 6 long holes | diameter (mm) | Φ60 | 43.3 | Dia. 73 |
| FE103En | φ92 | Dia. 107 | 45.5 | 4-5x 6 long holes | 115mm dia. | Φ80 | 43 | diameter (units assumed, esp. mm) |
| FE126En | φ102.2 | Dia. 117. | 61 | 4-φ 5 hole | φ126 | 100 mm dia. | 58.4 | φ104 |
| FE166En | 143.6mm dia. | φ166 | 75.7 | 4-φ 5 hole | φ174 | Φ110 | 72 | φ146 |
| FE206En | diameter (units assumed, esp. mm) | φ208 | 87.9 | 4-φ 5 hole | φ220 | Φ145 | 84.4 | 185mm dia. |
| FE168NS | φ143 | 190mm dia. | 85.2 | 8x 6 holes | φ174 | 120mm dia. | 72.4 | φ151 |
| FF85WK | φ71 | φ83 | 46.7 | 4-4x 6 long holes | diameter (mm) | 65mm diameter | 43.3 | *Refer to the diagram. |
| FF105WK | φ92 | Dia. 107 | 52.8 | 4-5x 6 long holes | 115mm dia. | diameter 85mm | 48.8 | diameter (units assumed, esp. mm) |
| FF125WK | φ102.2 | Dia. 117. | 61.3 | 4-φ 5 hole | φ126 | 90mm dia. | 57.5 | φ104 |
| FF165WK | 143.4mm dia. | φ166 | 76.6 | 4-φ 5 hole | φ174 | 120mm dia. | 72 | φ146 |
| FF225WK | diameter (units assumed, esp. mm) | φ208 | 91.7 | 4-φ 5 hole | φ220 | 145mm dia. | 86.5 | 185mm dia. |
| FE108EΣ | diameter 98mm | φ128 | 65 | 8-φ 5 hole | 115mm dia. | Φ90 | 56.5 | 100mm dia. |
| FE168EΣ | φ146 | 190mm dia. | 88 | 8-φ 6 hole | φ174 | 120 mm dia. | 74.4 | φ151 |
| FE208EΣ | diameter (units assumed, esp. mm) | 230mm dia. | 107 | 8-φ 6 hole | φ213 | Φ156 | 93.5 | 185mm dia. |
| FX120 | Dia. 103 | Dia. 123 | 62.5 | 4-φ 4.5 hole | φ126 | - |
54.5 |
φ104 |
| F120A | Dia. 103 | Dia. 123 | 89 | 4-φ 4.5 hole | φ126 | - |
81 |
φ104 |
| F200A | diameter (units assumed, esp. mm) | φ194 | 123.7 | 4-φ 6 hole | φ198 | 120 mm dia. | 117.2 | Dia. 183 |
Unit:mm
*This product complies with the European RoHS Directive.