The WA-4x3 is a 4-channel amplifier you can use with versatility: 4-zone, triphonic or quadriphonic sound system. In fact, it does what every other amplifier does, but twice better. Power stereo: 4 x 300 Wrms @ 4Ω 4 x 200 Wrms @ 8Ω Power bridge: 2 x 600 Wrms @ 8Ω 1200 W available 4 separate channels in an ultra-compact format Very versatile: 2x2 or 2+1 or 4x1 LINK FOR FULL INFORMATION AND DOWNLOADS: WA-4X3