I drive a VW Lupo and even thought my plant upgrade a little: D
In addition I have then brought me this subwoofer box, a new radio (Kenwood KDC-4047) and a Crunch amplifier 2x230 Watt).
And I must say for the small amount of space to the box the sound is occupied real huge! Here 5 of 5!
Locker can tolerate very high volumes and very deep bass. Only at high frequencies, so very hard bass is not quite as much over. Therefore, only 4 out of 5 stars.
The optics are intrusive in my opinion, simply yet and fits nicely into any trunk.
In total I can only say, who does not want excessively on a budget, but still want to have an awesome sound, for this part of the absolute hammer! Really.