Totem Tribe In Wall Sub Double 8 and Tribe 500W Amplifier (Black) length 1 5m High efficiency cool running Class D HT30 OW High efficiency cool running Class D switching topology with massive 32 Amp 600 Volt MOSFET’s result in lower EMI and highest efficiency while providing effortless power to produce SPLs and low frequency output with pristine clarity well beyond reference listening levels making the R3 Meta a true three way design that rivals larger speakers Designed to seamlessly integrate with the Tribe Series and immerse the listener in a totally realistic 3D sonic experience the Tribe Sub In Wall Double 8 redefines exactness