Originally Posted by Scotth3886
"Went mountain biking with a buddy with a CF frame"
You know better than this. I could give a crap about specs.. They tell me nothing about what a speaker will sound like. However, if specs is your thang, check out the distortion specs on ESLs.
Maybe this, and the difficulty driving this type of speaker, is why I'll readily hear amp vs. amp differences when I won't on other more conventional systems in my house. Still though, difficulty driving ESLs doesn't explain why I can hear difference with phono cables. I can on the ML ESLS, but generally can't with the Elacs or the B&W 865 S2s. They can't (not even close) resolve as well as the ESLs.
Plus, the resolving capability is far greater than your typical circa 1965 Sears Silvertone Consolette.
I ride road on my recumbent but also did BMX, road racing and mountain biking. A lifetime of broken parts and blood on the pavement, trails and around trees.
Well, if you have ever restored or repaired speakers--those charts and graphs on the drivers are critical. Get the design on paper, simulate with computer programs then test, measure and verify. I cheat these days, I bi-amp the speaker and use DSP for the filters to get the best crossover and filter points to mix modern and vintage drivers together. Once that is done, then I have a better idea of how to do the passive crossover. Get close with the passive then tune it a bit until smooth.
ESLs are their own thing, they need specific amplifiers for them to operate correctly. This is not an amp problem, this is a speaker problem but such is the price you pay for that design. It would be the same as if I took your amplifier and attached a iPal commercial grade sub to it--the amp would protest and probably let the magic smoke out. Not a fault of the amp, it is the fault of the ultra-low impedance of the iPal driver.
You should check that link to the "speaker flag"... when it rolls out, the ESL is gone but not forgotten.