I have two diamond audio d6 subwoofers in perfect condition I want 110 a piece they where used for about two years here are the specs.

Sensitivity: 85.5 dB
RMS Power Range : 600 Watts
Peak Power Handling: 1200 Watts
Impedance: 2 Ohm
Low Frequency response: 20 Hz
High Frequency Response: 250 Hz
Diameter: 12 Inch
Number of Voice Coils: Dual

This things bang loud this is a top tier brand name not audiobahn junk lol.

 

ics:

 

yea i have some pics just need to get free of school to take em and post

 

bump for some real good subs... rocked 2 of them before switching to a w7.

 

I can also attest to how great these subs are. I have the D3 and would have loved to get the D6. Also the price is very nice.