Harman/Kardon CA260 - what sub to use?

[NYCDelphin]

I recently acquired a Harman Kardon CA260 and I plan to bridge it to 180w mono 4 ohm to a sub.
Does anyone have any recommendations for a subwoofer to match this amp?

[george graves]

Are you asking what 4ohm sub would be best? That's a wide open question. 8" 10" 12"? For tight bass, loose loud bass? Buy something you like?

[NYCDelphin]

hey George !

I was thinking a 10". Not loud.. just enough to enjoy without going deaf.

I am leaning towards a 10" Alpine sub.. the 180w bridged mono is pretty low for current speakers.. looking to have a sub to match the amp output... i am seeing 500w subs out there for cheap...