Im looking to upgrade my subs. So whats eveybodys thoughts on the Pioneer Premier shallow-mount subs vs the Premier 12" champion series subs. Here are the specs.
Premier® 12" Shallow-Mount Subwoofer                                   
Watts MAX. Music Power                1400 Watts 
Watts Nominal Power Handling   350 Watts 
Frequency Response                     18 ~ 1,000Hz 
Sensitivity                                           88dB 
Ohm Rating                                       4 
Recommended Enclosure             0.5 ~ 1.0 Cubic Feet 
Dimensions                                       13" x 3-7/8" 
Mounting Depth                                  3-1/4" 
Premier 12" Champion Series Subwoofer 
Watts MAX. Music Power 1200 Watts  
Watts Nominal Power Handling 400 Watts 
Frequency Response 18 Hz to 500 Hz 
Sensitivity 89 dB 
Ohm Rating D2 (2 ohm) D4 (4 ohm) 
Recommended Enclosure 0.85 ~ 1.75 Cubic Feet 
Dimensions 327 mm x 172 mm 
Mounting Depth 153 mm
 
 
Ehh. I owned a pair of 10" premier subs back in the day. The were made out of very cheap materials. Out of everything I had ever bought from pioneer the subs were of the lowest quality product i received. Thats just me. I think for the money you can find much better subs.