Oh yeah the subs and aswell more info to read.

Thunder7128 - Thunder7000, 12" 8 Ohm Subwoofer

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Die Cast Aluminum Frame
Gold Plated Binding Post
Gold Plated Terminals
Magnetically Optimised extended pole piece w/ noiseless vent
Injection Molded Magnet Boot
Protects the magnet from damage.
Congruent Edge Technology
Gasket and Surround are co-molded of EPDM
Computer Optimized Progressive Roll
For Low Distortion and High Travel
102 oz Strontium Ferrite Magnet
For High Efficiency
2.5" 4 Layer Voice Coil on Kapton MTB Former
For High Power Handling and Excursion

Free Air Resonance Fs 27.5 Hz
Volume Acoustic Suspension Vas 3.27 Ft^3 (92.6 l)
Total Q Qts .63
Electrical Q Qes .67
Mechanical Q Qms 9.89
DC Resistance Re 7.37 Ohm
Linear Excursion (One Way) Xmax .50” (12.7 mm)
Effective Piston Diameter D 10.125” (.2572 m)
RMS Power Handling RMS 400 Watts
Total Power Handling Total 1000 Watts
Sensitivity 1W/1m SPLo 86.7 dB
Reference Efficiency No 0.27%
Frequency Response 28 - 150Hz
Voice Coil Inductance Le 5.6 mH
Gap Height .375” (9.5 mm)
Voice Coil Height 1.250” (31.8 mm)
Motor Force BL 16.14 Tm
Compliance Cms .244 mm/N
Total Moving Mass Mms 137.1 g
Moving Mass of Driver Mmd 130.3 g
Suspension Losses Rms 2.39
Effective Surface Area Sd 80.5 in^2 (.0519m^2)
Mounting Diameter 11” (279.4 mm)
Overall Diameter 12 3/4 ” (323.9 mm)
Mounting Depth 5 3/8 ” (136.5 mm)
Overall Depth 6 1/16” (154.0 mm)
Speaker Displacement (Inside Box) 247in^2 (4.0 l)
Speaker Displacement (Outside Box) 172in^2 (2.8 l)