My take is to just replace the crossovers you bought. then hook up the Speakers and listen to them , for 1 month's time.
Then decide, weather you need to replace anything............
JMHO.
FREQUENCY RESPONSE
38Hz-20kHz±3dB
POWER HANDLING
100 watts maximum continuous (1000 watts peak)
SENSITIVITY
101dB @ 1watt/1meter
NOMINAL IMPEDANCE
8 ohms
TWEETER
K-79-K 1" (2.54cm) Polymer diaphragm compression driver
HIGH FREQUENCY HORN
90°x40° Exponential Horn
MIDRANGE
K-57-K 1.5" (3.81cm) Phenolic diaphragm compression driver
MID FREQUENCY HORN
90°x40° Exponential Horn
WOOFER
K-34-E 15" (38.1cm) Fiber-composite cone
ENCLOSURE MATERIAL
Medium density fiberboard construction (MDF)
ENCLOSURE TYPE
Bass reflex via front-mounted port
DIMENSIONS
35.75" (90.8cm) x 25.25" (64.1cm) x 15.5" (39.4cm)
WEIGHT
90 lbs. (40.9kg)
FINISHES
Raw Birch, Walnut Oil, Walnut Lacquer, Oak Oil, Oak Lacquer, Finished Black
BUILT FROM
1986
BUILT UNTIL
1990