I noticed a lot of interest on here and just wanted to share my experience after replacing my Hertz HSK165 with these. I am not an expert nor do I claim to be, this is just the differences I experienced in my car.
2000 Acura Integra GSR
Gear: Alpine 9885, ARC KS 300.4, Morel Tempo 6.
Right off the bat I noticed that the Midbass was more full and able to hit the lower notes where my HSK lacked. I have them crossed at about 60hz and they are begging to go lower. I put the volume to 20 and enjoyed the detailed tweeter which wasn't harsh at all.. Usually around volume 18 the HSKs would bother me a tad and I'd have to back off. The Tempos' tweeter and mid-bass blend together well and have a very natural sound. Appearance wise, they aren't eye candy by any means, but that didn't matter to me since it would be behind the door and away from sight. I would suggest running them with a minimum of 100wrms-200wrms.. Obviously headroom is nice but they seem to like what I am giving them right now
I am completely satisfied with my UPGRADE from the HSK165 and recommend it for anyone looking for a nice budget component set. I am happy with my more detailed tweeter, more full and responsive midbass, and an overall more blended component set.
Hope this helps some of you guys looking for components out there!
Pictures (Late and blurry but better than nothing I guess)