I don't know. Why stop @ just $16K? I heard the $22K/pr Revel Ultima Salon2 speakers are even better.
They are 29Hz to 18kHz
±0.5dB; 26Hz to 20kHz ±1.0dB; -3dB at 23Hz, -6dB at 20Hz and -10dB at 17Hz.
Even the flagship $23K/pr B&W 800D is NOT that good: 32Hz - 28kHz ±3dB on reference axis; -6dB at 25Hz and 33kHz.
±0.5dB ??? Are you kidding me?