Various Artists

When Kid 606 couldn't find the amped-up ragga he yearned for, he invited some like-minded friends to collaborate on their own music. Enter Shockout Volume One, an introduction to a burgeoning Tigerbeat6 sub-label that blends sweaty Jamaican machismo with junglist breakbeats. The most satisfying tracks are menacing soundclash shout-outs. Com.a and Wicked Act's "No Heathen (Ghetto Plazma mix)" and Kid 606's "Buckle Up (Cool It Down mix)" sound like dancehall on PCP, running around in circles and punching the concrete until its knuckles bleed. Shockout's hybrid of epileptic dub and pulsating, bottom-heavy riddims ultimately manages to mine new territory.