Im not familiar with for owning one but did become curious enough to search up.
" In addition Lehmann includes sixteen bass roll-off curves between 7Hz and 90Hz. If your speakers don’t have extended low frequency response this is a very useful feature that can save amplifier power for audible frequencies instead of wasting it on pointless woofer pumping. You are not likely to hear low frequency response differences if your speakers don’t go much below 60Hz but your amplifier will thank you.
Read more at http://www.analogplanet.com/content/lehmann-audio-black-cube-se-ii-mmmc-phono-preamp-reviewed#Lm92RQ...
" In addition Lehmann includes sixteen bass roll-off curves between 7Hz and 90Hz. If your speakers don’t have extended low frequency response this is a very useful feature that can save amplifier power for audible frequencies instead of wasting it on pointless woofer pumping. You are not likely to hear low frequency response differences if your speakers don’t go much below 60Hz but your amplifier will thank you.
Read more at http://www.analogplanet.com/content/lehmann-audio-black-cube-se-ii-mmmc-phono-preamp-reviewed#Lm92RQ...