I roto i te ao o ngā kaikorero rongorau, i puta tuatahi te ariā o te whakakaha mana motuhake i te tau 2002. Whai muri i te wā o te whakatipu i te mākete, i te tau 2005 me te tau 2006 pea, kua mōhio whānuitia tēnei whakaaro hoahoa hou o ngā kaikorero rongorau e ngā kaihoko. Kua whakaurua mai hoki e ngā kaihanga kaikorero nui ngā kaikorero 2.1 hou me ngā hoahoa whakakaha mana motuhake, ā, kua tīmata te ngaru o te hoko mataku "whakakaha mana motuhake". Inaa, inaa, mō te kounga oro o ngā kaikorero, kāore e tino pai ake nā te hoahoa o te whakakaha mana motuhake. Ka taea anake e ngā whakakaha mana motuhake te whakaiti i te pānga o te pokanoa hikohiko ki te kounga oro, ā, kāore e ranea hei whakapai ake i te kounga oro. Heoi anō, he maha tonu ngā painga o te hoahoa whakakaha mana motuhake kāore i te rite ki ngā kaikorero rongorau 2.1 noa:

Tuatahi, kāore he herenga rōrahi o te whakakaha mana motuhake, nō reira ka taea e ia te whakatutuki i te pai ake o te tohatoha wera. Ka taea e ngā kaikorero noa me ngā whakakaha mana kua whakauruhia te tohatoha wera mā te whakawhiti o te ngongo hurihuri nā te mea kua hiritia ki roto i te pouaka rakau he iti te kawe wera. Mō te whakakaha mana motuhake, ahakoa kua hiritia hoki te ara iahiko whakakaha mana i roto i te pouaka, nā te mea kāore te pouaka whakakaha mana i rite ki te kaikorero, kāore he whakaritenga hiri, nō reira ka taea te whakatuwhera i te maha o ngā kōhao tohatoha wera i te tūranga o te wāhanga whakamahana, kia taea ai e te wera te haere mā te whakawhiti taiao. Ka tere te horapa. He mea nui tēnei mō ngā whakakaha mana-teitei.

Tuarua, mai i te taha o te whakakaha hiko, he pai te whakakaha hiko motuhake mō te hoahoa ara iahiko. Mō ngā kaikorero noa, nā te maha o ngā āhuatanga pēnei i te rōrahi me te pumau, he tino kiato te hoahoa ara iahiko, ā, he uaua ki te whakatutuki i tētahi tahora ara iahiko kua arotauhia. Nā te mea he pouaka whakakaha hiko motuhake tōna, he nui te wāhi o te whakakaha hiko motuhake, nō reira ka taea e te hoahoa ara iahiko te ahu whakamua mai i ngā hiahia o te hoahoa hiko me te kore e whakararuraruhia e ngā āhuatanga whāinga. He pai te whakakaha hiko motuhake mō te mahi pumau o te ara iahiko.

Tuatoru, mō ngā kaikorero me ngā whakakaha hiko kua hangaia ki roto, ka wiri tonu te hau i roto i te pouaka, ka pāorooro te papa PCB me ngā wāhanga hiko o te whakakaha hiko, ā, ka purei anō te wiri o ngā pūnga me ētahi atu wāhanga ki roto i te oro, ka puta he haruru. Hei tāpiri, ka pāngia hoki te kaikorero e ngā pānga hikohiko, ahakoa he kaikorero ārai-aukume katoa, ka kore e taea te karo i te turuturu aukume, inā koa te woofer nui. Ka pāngia ngā wāhanga hikohiko pēnei i ngā papa ara iahiko me ngā IC e te turuturu aukume, ka whakararuraru i te iahiko i roto i te ara iahiko, ka hua ake he tangi iahiko whakararuraru.

Hei tāpiritanga, ka whakamahia e ngā kaikorero he hoahoa whakakaha mana motuhake te tikanga whakahaere kāpata whakakaha mana, e tino wātea ai te whakatakotoranga o te subwoofer, ā, e penapena ana hoki i te wāhi papamahi utu nui.

I te kōrero mō ngā painga o te tini o ngā whakakaha hiko motuhake, ka taea te whakarapopoto ki te rerenga kōrero kotahi - ki te kore e whakaarohia te rahi, te utu, me ērā atu mea, engari ko te pānga whakamahinga anake e whakaarohia ana, he pai ake te whakakaha hiko motuhake i te hoahoa o te whakakaha hiko kua hangaia ki roto.