FS-4AS
Active Speaker System
FS-4AS(W) White model
FS-4AS(B) Black model
back panel
High resolution and mid-low frequency realism for a sound field with a sense of depth
- Body Color:
- Black, White
Features
● Equipped with a newly developed 100 mm (4-inch) woofer with a highly rigid aluminum die-cast frame.
The woofer, which handles the mid-bass frequencies, is equipped with a highly rigid aluminum die-cast frame that suppresses the effects of unwanted vibrations transmitted from the cabinet.
The diaphragm is made of natural fibers based on kraft pulp, with a special coating applied to the surface to increase rigidity, reproducing expressive mid-bass sounds despite its small size.
Butyl rubber, which has an established reputation for linearity, is used for the edges. This absorbs the diaphragm’s split resonance moderately and supports large input.
A 19 mm (3/4-inch) soft dome tweeter is mounted.
A lightweight soft dome (UFLC) diaphragm is used for extremely stable performance. The magnetic circuit uses magnetic fluid to suppress temperature rise and ensure stable operation at all times. The sound range extends up to 40 kHz, beautifully reproducing high-resolution sound sources.
Enclosure design suppresses unnecessary resonance.
The enclosure is made of MDF with the baffle 18mm thick and other parts 12mm thick. In addition, reinforcing wood is placed in optimal positions to prevent box rattling, ensure strength, and reduce muddiness of the sound caused by unnecessary resonance.
●High-performance D-class amplifier
High-performance D-class amplifier with 25 W for woofers and 16 W for tweeters.
Each bandwidth is amplified exclusively by a bi-amplifier system to bring out the best features of the driver unit.
Easy-to-operate front switch
The volume and power-saving mode switches are mounted on the front panel for manual on/off setting. (Compliant with the ErP Directive on Design for Environmentally Friendly Use in Europe)
Specifications
Main Specifications
| Speaker section | |
|---|---|
| enclosure | 2-way bass reflex system |
| Built-in Unit | 100mm (4″) woofer |
| Amplifier section | |
| Maximum output | Woofer: 25W, Tweeter: 16W |
| input | RCA jack |
| Rated input level | -10dBV min. |
| Input impedance | 10kΩ min. |
| Harmonic distortion | 0.1% (0.1%) |
| Playback frequency band | 60Hz to 40kHz |
| crossover frequency | 2kHz |
| general | |
| External Dimensions | 150(W)×237(H)×192(D)mm (including knob) |
| Mass of main unit | Approx. 3.3 kg (1 unit) |
| Power Supply/Power Consumption | AC100V/50W, 0.5W or less (standby (dormant) state) |
| accessory | AC cable (2m) x 2, RCA cable (red-white stereo/1.5m) x 1 |
*This product complies with the European RoHS Directive.