High current amplifier protection circuitry allows you to use up to 4 speaker pairs without damaging your amplifier. * High current resistors with aluminum finned heat sinks for maximum power delivery, up to 150 watts per channel. * High quality extruded aluminum chassis for heat dissipation. * Accepts any gauge speaker cable terminated with Monster Angled Gold Pin connectors. * 24K gold contact spring-loaded connectors for maximum signal transfer and easy cable hookup.