Found the TSP's
RMS POWER (WATTS) : 1000
VOICE COIL DIAMETERS (INCHES) : 4.0
MAGNET WEIGHT (Oz.) : 250
FREQ. RESPONSE (Hz) : 20 - 1k
Fs (Hz) : 34
Qes: 0.449
Qms: 3.722
Qts: 0.401
Vas (Ft3) : 2.08/58.77 liters
Xmax (INCHES) 0.551
SPL (dB) : 91
HOLE SIZE (INCHES) : 14.25
WOOFER DEPTH (INCHES) : 8.25
RECOMMENDED ENCLOSURE (Ft3) : Ported 4.25
RECOMMENDED ENCLOSURE TYPE : Vented
AEROPORT DEMENSIONS (INCHES): 3 x 3 (2)
Cast Aluminum Basket
Dual 4-Layer, 1-ohm Voice Coils
Cloth Laminated Paper Cone with MD6 coating
Stone Gray Finish with Diamond Cut Edge
Hi Arc, High Excursion Surround
Chrome Plated Back-plate
Low Carbon Top and Pole Piece
Triple Stacked Magnet Structure
Vented and Extended Pole Piece
Black Progressive Roll CONEX Spider
Woven Tinsel Leads
Gold-Plated Binding Posts
BAEISV Hybrid Voice Coil Former
C- Lock Rubber Gasket
Rubber Magnet Cover
Reference:
Soundstream T4-15 Component Car Subwoofers at Onlinecarstereo.com