Xa ukhetha i-amplifier yamandla, kufuneka uqale unake ezinye zeempawu zayo zobugcisa:

1.Impedance yokufaka: ihlala ibonisa ubungakanani bokuchasana namandla okuphakamisa amandla, ngokubanzi phakathi kwe-5000-15000Ω, elixabiso likhulu, kokukhona amandla okuchasana nokuphazamiseka;

2. Isidanga sokugqwetha: kubhekisa kwinqanaba lokugqwetha komqondiso wokuphuma xa kuthelekiswa nomqondiso wokufaka. Ixabiso lincinci, kokukhona ubangcono umgangatho, ngokubanzi ungaphantsi kwe-0.05%;

3. Umlinganiso wophawu lwengxolo: ubhekisa kumyinge ophakathi kwesandi somculo kunye nesandi somqondiso kwisandi somqondiso. Ixabiso elikhulu, isandi siyicoceka. Ukongeza, xa uthenga isixhobo sokukhulisa amandla, kufuneka ucacise iinjongo zakho zokuthenga. Ukuba ufuna ukufaka i-subwoofer, kungcono ukuthenga i-5-channel ye-amplifier yamandla. Ngokwesiqhelo izithethi ezi-2 kunye ne-4-zesithethi zinokuqhuba kuphela izithethi zangaphambili nezingasemva, ngelixa i-subwoofer kuphela Inokuxhotyiswa ngesinye isixhobo sokukhulisa amandla, isikhulisi samandla esine-5 sinokusombulula le ngxaki, kunye namandla okuphuma kwesikhulisi samandla kufuneka ibe nkulu kunamandla alinganisiweyo esithethi kangangoko kunokwenzeka.