Ground Zero GZRW 15XSPL 15″ Dubbele 2 Ohm Subwoofer 1200w RMS

I was skeptical about the reinforced paper cone holding up, but this thing takes a beating and just keeps pounding. The Klippel optimization is clearly doing its job too, because the sound stays clean even when I push it hard.

The long stroke on this 15" really lets it dig deep into the bass frequencies while the reinforced paper cone keeps everything tight and controlled. I've been pushing it for a few weeks now and the Klippel optimization definitely shows in how clean it stays at high volume.

Finally got the Klippel optimization to shine in my ported box and it's hitting hard without any distortion. The reinforced paper cone moves way more air than my old 12 even at half the gain.