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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
djones51
4,947 posts
 
Everyone's likes are different but I would look at efficient speakers with a flat FR if you end up looking for new ones. 
elliottbnewcombjr
5,950 posts
 
Those speakers are for 'midrange lovers'

Without a doubt, I suggest you try new and more efficient speakers with a tighter measured frequency balance.

this from their web site I find funny:

" The speaker is moderately efficient and its impedance averages 8 ohms."

they are very low sensitivity, 83db/1w/1m. you need 4x power to 'get to' equal of a 90db efficiency speaker. That's why you need max volume on your amps, and still not enough.

"frequency balance +/- 4db (in a typical room)". that is adding bass reinforcement of a 'typical' room, and still -4db.

highs fall off -6db (+ 3db needs twice the power. another +3db needs twice the power again, so that is a LOT of diminished sound.

highs 'smoothly' fall off to -12db at 20khz. 12 year olds with wonderful ears couldn't hear those diminished highs, certainly not my 72 year old ears.

majorc OP
78 posts
 
Most of you confirmed my instinct: replace the speakers with more efficient ones that will work with the quicksilvers. Any recommendations in the 3,000 range new or used? 
Post removed 
decooney
2,358 posts
 
@majorc Did not realize you had older Mono 60s with EL34s. Great tube, less drive. +1 on earlier KT88 suggestion. Genelex Gold Lyon KT88s, a good tube preamp, and good OCC interconnects could give you more drive and transparency you are looking for.

Or, if you go to different speakers, what color stain are they and how old are the LFT8s? PM me if you plan to sell them. May know of a buyer :)




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