Strictly my opinion; If wanna start SQ entry level amps go for 5 channel type as can save $$ on cables & lebih-kurang 'tweek-tuning' using built-in X-Over without buying active X-Over. Tuning 1 amp with all channels within is easier than tuning 2 amps given your limited $$. As for the type of amps, the $$ spent has 2 equation; given the budget either you can go for branded but will be short-changed by the end product sound but spend the same amount on a good class 'AB' amp than can 'tapau' the above branded one. Always remember all those marketing & promotional $$ they spend is all paid by consumer who buys the product. If class 'A' budget than no need to compare-lah.