เป็น Sub woofer สุด ๆ ตัวหนึ่งที่มาจาก USA
คุณสมบัติดังนี้
SPG555 Reference Standard Subwoofer
* 555 cm2 of surface area
* 3¾ inches of peak-to-peak excursion
* 3½ voice-coil
* Radialvent® cooling technology
* Only 26 Lbs! Thanks to Neodymium Lightweight design
* RVC (Removable Voice Coil) allows coil to be exchanged without removing the woofer from the enclosure
* SPS (Soft Part System) removable assembly enables field repair of the cone/surround/spider assembly
* Can be field-stripped and custom painted, powder-coated, or plated
* Work in multiple enclosures, both sealed and ported
* Integral sealing gaskets simplify both standard and inverted mounting
* Available in 4-ohm and 2-ohm versions
Nominal Sd
555cm²
Rated RMS power handling
1000 watts
Nominal Impedance
4-ohm/ 2-ohm
Mounting Depth
8-1/4" (210mm)
Linear Excursion
3-3/4 inches
Recommended Enclosure
1.0ft³ (28.3L) volume sealed