spec...copywrite from box
165mm 2 way automotive loudspeaker component speaker
1" edge driven kaladex tweeter with mount
outboard crossover network power handling 90rms 270peak
sensitivity: 92db@283v/1m
frequency responde: 55hz - 21khz
mounting depth: 2-5/16" (59mm)
cut-out diameter: 5-5/8" (143mm)