[MySheep]

I just got HFI-780. The website list Frequency range: 10 Hz – 26 kHz. But when I test with low Frequency sound 10Hz and 15Hz, I couldn't hear anything except some cracking sound at the begining. Someone who has 780 could you please test your cans for me If you hear anything.Im so desperate right now.

you can get the file at Burn-in wave files: white noise, pink noise, frequency sweep, channel mix
**sorry for my bad English writing**

and about the CD that con\me with the headphone Track7 "also sprach zarathustra" the background bass is so boommy that I can't guess what note It is, Is this normal with this phones?

 

[boomana]

I don't know about the frequency tests, but I can say that I also experienced the stock 780's bass as boomy, and even when modded, as out of balance. Some people seem to like that. I did not.

 

[parhelictriangle]

If you can hear 10Hz to 15 Hz at all, on anything, you are a lucky person. And quite possibly nonhuman.