PIONEER S-1000 Twin-A (1991)

Brand: PIONEER

Model: S-1000 Twin-A

Year: 1991

The S-1000 Twin-A is using two 20cm cone type woofers for low frequencies. The diaphragm of these woofers are using "ALCC" (alginate composite cone), which is made by mixing alginate fibers in order to increase the bonding strength between high-rigidity materials (carbon fibers, aramid fibers, etc.) and pulp. Alginate fiber is made by turning alginic acid extracted from seaweed into thread-like fibers. This fiber is used as a binder between a high-rigidity substance and pulp, and by increasing the binding strength, it achieves high quality with high rigidity and high internal loss. In addition, the S-1000 Twin-A contains a new high-rigidity material, polyarylate fiber, which has excellent shock absorption ability, and improves the response of the woofer's diaphragm. Alnico magnets are used in the magnetic circuit. A 3cm dome tweeter is used in the high range. The diaphragm uses a ceramic graphite diaphragm with 99.99% carbon purity, which is driven by an alnico magnet and an OFC edgewise wound voice coil. The tweeter uses a WF (Wave Front) director made from carved Itaya maple laminate. The enclosure is finished in real walnut veneer with an oil stain finish.

Technical Data:

2,5-Way, 3-Speaker, Bass Reflex 

Max. Input: 180 W(EIAJ)

Nominal Power: 

Frequency Range: 28Hz-40.000Hz

Impedance: 6ohm

Woofer: 20cm ALCC cone

Bass-mid: 20cm ALCC cone

Tweeter: 3cm ceramic graphite dome 

Cross over frequency: 181Hz, 1800Hz

Dimensions: 276x1060x407mm (WxHxD)

Weight: 44kg

More Classic Loudspeakers