change amps or speakers


I am powering Eminent technology LFT8bs with quicksilver M60 monoblocks.  No preamp - I am running a dac directly to the amps, which works because with this configuration I am using very little attenuation.  Problem is it is obvious that the ETs require more current and/or wattage- the detail is there but not the punch and there are times when I am maxed out on volume at 12 0'clock and need more. Question is do I change the amps or speakers - I love the quicksilvers and put some serious $ into modifications.  A well respected friend/tech highly suggested I seek out a used pair of PSB stratus golds. I have a medium sized family room and like detail neutrality but need more rhythm and dynamics. Thanks you.
majorc
Thank you. I did speak with Mike at Quicksilver and he thought the amps were sufficient to drive the speakers so long as my room was not to big and I don't play too loud; he also recommended possibly trying a preamp. But I did use a preamp (sonic frontiers anthem pre1P) and it sounded better going direct without the preamp - much more detail - as though a blanket was taken off the speakers.  But the tradeoff is now I have detail but no weight or dynamics - the sound is a bit thin - and I do need a bit more volume.  My budget is 3,000 give or take - if I had to choose 1 to replace it would probably be the speakers - I love the amps.  And I tried replacing the amps with an Eagle 2c prime which was recommended to drive the ETs, and it gave me a bit more volume but did not in any way compare to the sweetness of the quicksilvers.  I understand  the moscode 600 is recommended to drive  ETs- not sure how that compares to the Quicksilvers sound quality wise.    
Do you have the older 60 watt Quicksilvers? Or the new ones?

M60 Mono Amplifier

 New one!
http://quicksilveraudio.com/products/sixty-watt-mono-amp/

kenjit is right for a refreshing moment.
I’m surprised if you get 90 dB in room with those 83 dB sensitive transducers.
Try some Ice power OR get some >90 speakers with the QS.
What we have here is
"A Failure To Communicate"
Even this sez you need => 92 dB with the 60's:
http://www.kaplanhtdesign.com/QuicksilverAudio_Sixty_Watt_mono.html
@hilde45
The older one has a peak power spec of 100 watts. It also has a 1 ohm tap for a difficult load!!