well heres a couple subs i found..
Rockford P3 (250rms)
Polk audio MM (250rms)
Infinity REF860w (250rms)
those will be fine on 300w
theres a decent amount of kicker subs that'll take more than that(300-450), and a JL w7 will take 500rms.
if you considered runnin maybe 4 8s if you have room, diamond audio D3s are nice (200rms) and could take 250w if you get a 1000w amp.
as far as everything else idk how good the SQ on them are..
Rockford P3 (250rms)
Polk audio MM (250rms)
Infinity REF860w (250rms)
those will be fine on 300w
theres a decent amount of kicker subs that'll take more than that(300-450), and a JL w7 will take 500rms.
if you considered runnin maybe 4 8s if you have room, diamond audio D3s are nice (200rms) and could take 250w if you get a 1000w amp.
as far as everything else idk how good the SQ on them are..