Here are the specifications on the Eclipse speakers from
http://www.ckrme.com
Eclipse SE8353 -- Front Door
Size: 5-1/4" 3-Way
Continuous Power Handling: 30W
Music Power Handling: 60W
Frequency Response: 90Hz-40Hz
Sensitivity: 94dB
Cone Material: Mica/Poly
Surround Material: Rubber
Voice Coil Former: Kapton
Midrange Dome: None
Tweeter Dome: Mylar
Super-Tweeter Dome: Mylar
Tweeter Magnet Material: Neodymium
Woofer Magnet Material: Ferrite
Mounting Depth: 1 7/8"
Eclipse SE8243 -- Rear Door
Size: 4" 2-Way
Continuous Power Handling: 25W
Music Power Handling: 50W
Frequency Response: 105Hz-40Hz
Sensitivity: 94dB
Cone Material: Mica/Poly
Surround Material: Rubber
Voice Coil Former: Kapton
Midrange Dome: None
Tweeter Dome: Mylar
Super-Tweeter Dome: Mylar
Tweeter Magnet Material: Neodymium
Woofer Magnet Material: Ferrite
Mounting Depth: 1 5/8"