Pioneer S-A4-LR
¥ 88,000 (2 units 1 set, sold in June 2000)
Commentary
A Series speaker system developed with the theme of home theater and home concert hall.
A 16 cm cone type woofer is installed in the low range.
The cone uses Kevlar fiber. In order to realize an ideal unit material, the thickness, direction of fiber and cutting are taken into consideration, and satin weave is used. In addition, nonwoven fabric of aramid fiber is used for the mat material, and the contradictory elements of rigidity and internal loss required as a speaker unit are balanced at a high level.
A 13 cm coaxial type unit is installed in the middle and high range.
This unit combines a 13 cm cone type mid-range and a 3 cm dome type tweeter. The mid-range diaphragm uses Kevlar fiber.
In addition, Pioneer has introduced the HSDOM (Harmonized Synthetic Diaphragm Optimum Method) for the tweeter. By analyzing the material, shape, edge, etc. of the diaphragm using the finite element method with a computer, it is designed to maximize each function and performance. By combining piston motion and divided vibration in a well-balanced manner, ultra-high frequency reproduction is achieved. The diaphragm of this tweeter uses a 20-micron titanium oxide diaphragm, and ultra-high frequency reproduction up to 50 kHz is achieved.
The enclosure uses a bass reflex system.
In addition to increasing the strength of the baffle plate and top plate, we have placed reinforcing plates at the optimum position inside to thoroughly suppress unnecessary vibration generated by each unit.
Uses a large gold plated input terminal.
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Model Rating
| Method | 3-way, 2-speaker, bass reflex system, bookshelf type, magnetic resistance design (EIAJ) |
| Units Used | For low band : 16 cm cone type For Middle and High Areas : 13 cm Coaxial Type For Medium Range : 13 cm cone type For High Pass : 3 cm Dome Type |
| Impedance | 6 Ω |
| Playback frequency band | 42 Hz to 50 kHz |
| Output sound pressure level | 91dB/W/m |
| Max Input | 160W(EIAJ) |
| Crossover frequency | 300 Hz, 2.5 kHz |
| Unit polarity | Low : + Middle zone : - High frequency : - |
| External dimensions | Width 230x Height 427x Depth 298 mm |
| Weight | 13.0kg |
| Attachment | Spike x6 Saucer x6 |