By connecting an optical cable or RCA 5.
1ch multi-processor IP-BUS, 5.1ch surround sound can be extended to the 4ch! Accessories: While roughly aligned components, the input code stockout speakers AXM-P7. The short stockout other parts, such as bis-state. I hardly see for monitor with optical digital terminal and the center speaker is not displayed correctly in the bonus.
5.1ch processor (DEQ-P7/AXM-P7 - 10-27483