I’ve had the DSK 165 Hertz speakers in my car for 5 years now and they sound great. Running the accompanying tweeters in my A-pillars too (those are on a separate amp).
I did the full front with MP 3 ohm kicks, MP70 and the tweeters that come with Pro. Also c165f for rear fill that never used. Need time to break in. I resided them I my new Bronco B&O.
You really need a DSP amp to make it come alive I have Audison AP8.9 with all the harnesses to plug and play 9 speaker car if you're interested plus it's tunes already for front stage dual seat and a separate powered JL sub . Cheap.