Hertz HSK 165XL

Hey every, found this forum quite useful over the past few weeks so decided to join.

Recently started collecting older stereo gear, you know, just for fun and set up a test bench in my basement. Recently scored an audison lrx5 a single din pioneer premier deck thats never been used and a pair of older 5 1/4 pionner coax for $120. Just thought id share that excitment but thats another story.

My current system in my f150 consists of a kenwood dmx7706s
4 6.5 tc sounds tropo
Sundown saz1000d
Hertz hcp4
hertz mpk165.3


The reason for this post is i found what looks to be a decent set of hertz hsk 165xl. He was originally asking $400 but ive got him down to $290cad.

Only issue i can see in the pictures is that the crossovers are missing the plastic snap on covers and 1 terminal screw. Ive been googling for a day and cannot find replacement crossovers for these. Closest i can find are the 2tw10.4 crossovers that 'say' they are for the hsk set but im not so sure. Whats everyone here think of mismatching passive crossovers on sets? Maybe i can use different quality passives? Or should i just rock these without the covers? Worth $290 canadian? How do they compare to the mpk165.3?

Next question is, ive never really used 1 of those external active crossover things. I dont really want a dsp as i dont own a pc at home. Can anyone give me a quick low down on how i can incorporate an external active crossover into my system using a single 4 channel amp. Id love to try out active but this is my first time. Is it as simple as hooking up the rcas the mids and tweeters and then just adjusting the crossover points for each?

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Value, no clue.

External active crossover? Doesn't the amplifier have internal (active) crossovers?

Passive crossovers are not all compatible with all component sets. Many speakers have an undesirable frequency response and their crossover compensates for that. The crossover points and the slope may also differ. Why not use the crossovers as they are with no covers?

Is the missing screw's threaded hole damaged? It doesn't look perfectly round.
 
Yes my amp has crossovers but i want to keep it bridged. Yes like a seperate electronic crossover. My current amp doesnt have the x10 option to get about like 500hz. I could use the crossovers without the covers it just bothers my ocd.

Not sure on the screw hole going to see it in person tonight.
 
New to the site, old to the scene, catching up on older posts...If you are not too set on matching brand...Audio System crossovers are built by the same factory as the Hertz ones...just set for different regions for sale...they are high quality, and not expensive like you'd expect...as for the comparison...sorry, no input, but I LOVE my 165.3s....