I'll give my views on a 1x15 driver, I currently use a Electro-Voice EVM 15B in a Spec built tl-606 cabinet ( EV published these plans years ago and they are still readly available for down load ) and I've like the full open sound ... the JbL- 140 e is a great speaker and should be mounted in a proper box ..... the point is all speakers can sound good, great, poor, nasty ... it all depends on the tuning of the box

