High value, giant killer speakers?


What speakers have you heard at any price did you find are fairly priced or a great deal and competed with offerings much more expensive (2x, 3x, 4x etc)? 
smodtactical
Cerwin Vegas  CLS-215, two 15 inch woofers in a each cab, very efficient
replaced by xls-215's best 1500 you will spend
forget the exotic crap you are all chasing your tails
magnepans are a joke, no bottom end and you will need 300 plus watts per side to get them going
Helsinki Gradients and a pair of 15" sealed box Rythmik subwoofers; subwoofer integration with DSpeaker X4 (active crossover, room correction); Imaging/reproduction of space, texture, micro-detail, tonality are wonderful; voices, piano, guitar, violin - all sound life like. System is linear down to 20 Hz (and below).
No room treatment necessary, no searching for sweet spot - sounds excellent in the entire room (30' x 15', slanted ceiling). Total cost ca. $13k.