I have auditioned LS-60's and also own Reference 1's. Mine are fed by a Luxman entry-level integrated amp, and still beat the LS-60's handily.
KEF Reference 1 or LS60
I using pre-meta KEF Reference 1s driven by an Ayre VX-5 Twenty amp with an Ayre QX-5 Twenty roon-ready DAC, Ayre DX-5 DSD disc player, and Ayre KX-5 Twenty preamp. The speakers are augmented by a pair of Velodyne HGS-15s with acoustic room correction below 80 Hz and high-passed at 80 Hz by a passive balanced Marchand filter. A plan I’ve been mulling over is replacing the Reference 1s and all the Ayre gear except the disc player with KEF LS60s. Any thoughts or suggestions?