TOPIC:

I recently purchased the Studio and 2x4HD.   I plan to use dual subs with Kii3 Actives to cross over at 50hz.    I currently have a D22 using DL 2.0 and the Studio will take the place of the 22.

I have been researching frequency roll off at the high end.     At aged 62 and having had a recent test, my top end hearing is gone at around 12000hz.    Since this is the case, is there any sense running DL past say 13000 to 14000hz or should I simply roll if off there or draw the curtain across and not measure above 13000?   Will that make life any easier for the Studio algorithms?   Or does it make no difference at all to run it through to 20000hz.

Regards Cazzesman 

My advice: run it up to 20000Hz!

You know: my father did not hear above 10kHz, but when I demonstrated him an audio setup with distorions above 10 kHz, he could absolutely and immediately not stand it!

Regards
Franz

The measurements are always up to 20 kHz no matter what you do. All the 'curtains' do is change the frequency range of any correction. What this means is you can do a set of measurements and then experiment with different frequency ranges and target curves to see what you prefer. You might what to experiment with a target curve with a modest (say 3 dB) lift at around 12 kHz to see if this improves the sound for you. Don't go crazy though or you'll just put excessive load on the tweeters and you won't be able to hear much above where you're hearing rolls off anyway.

Personally I prefer only using Dirac Live up to about 150-200 Hz, so experiment and decide what you like best.

FranzG wrote:

My advice: run it up to 20000Hz!

You know: my father did not hear above 10kHz, but when I demonstrated him an audio setup with distorions above 10 kHz, he could absolutely and immediately not stand it!

 

+1    same experience with my dad, acc to the doctor's tests his hearing "stopped" at 6kHz, but when I brought him some metal coned loudspeakers (which had a resonance somewhere above 10kHz) he gave them back the next day, too harsh