Hey there N2, i doubt it would be the low 140 bro, with 2 JL10W3's i hit 141.6 dB with 500 watts RMS powering them.
Those eclipses may be a little underpowered for maximun SPL, but they would hit at least in the upper 140's.
With a little more juice - they'd hit the 150's no prob.
(500/1 JL is my top chioce - nice pick)
I've seen a 156.7 dB hit with a single JL 15W3 with the right wattage. Anythings possible with good equip.