Hi,
I did test the HD-668B on my modified SMSL SD793II dac & headphone amp
where the sound is great and a bit more focused than the HD-681 (but both headphones are close)
After listening the HD-668B, the HD330 has too much bass with overall heavier sound
There is a lot of details, the voices shine.
The bass are deep & clear.
The trebles are very clear, when they are hard,
they only reflect the poor quality of the amp or dac
If you improve the quality of electronics, you will hear it through the HD-668 B
I am very impressed with the soud you get directly on a Samsung Galaxy S3 (Wolfson WM1811 DAC)
it is a pefect match, better than the 681 (too much spatial)
Jerome
I did test the HD-668B on my modified SMSL SD793II dac & headphone amp
where the sound is great and a bit more focused than the HD-681 (but both headphones are close)
After listening the HD-668B, the HD330 has too much bass with overall heavier sound
There is a lot of details, the voices shine.
The bass are deep & clear.
The trebles are very clear, when they are hard,
they only reflect the poor quality of the amp or dac
If you improve the quality of electronics, you will hear it through the HD-668 B
I am very impressed with the soud you get directly on a Samsung Galaxy S3 (Wolfson WM1811 DAC)
it is a pefect match, better than the 681 (too much spatial)
Jerome
