EUROPA HIGH PERFORMANCE 3mm SPEAKER INSTALLATION CABLE This speaker cable is intended for installation purposes where its compact size provides many advantages. Anyone concerned about cable losses will note that 3sq mm conductors are thicker than household ring main wiring! Most high performance cables are 2.5sq mm. The flat figure of 8 construction eases problems of routing the cable in inaccessible areas and is easily concealed. Because of the very high efficiency, long cable runs need not result in power losses. Polarity is very apparent. On a price performance basis alone this product is without equal. Dimensions 4.5mm x 9mm.