These three models were considered a result of the reviews on Amazon:
CSL410
Buedio HT
August EP650
Now for the test: (all headphones were tested without equalizer and switched phone function before the impression is not affected)
August EP650: The headphones are very good, looks good is well made, has a matte black which I indeed liked very well, but unfortunately we saw every other fingerprint on it. The link to my devices (Xperia Z3 & Surface Pro 3) went smoothly, however, the coupling devices brought to the Surface Pro 3 (Win 8.1) my previously coupled something messed up, so I had to after all these coupling again.
The Sound: August EP650 is unfortunately very bassy, depending on what you happens for a title. Partial sound suppressed so the ears that you think you would have a subwoofer on the ear. The highs and midtones could not convince me, these are partly audible, but not very good. On a scale of 1-10 (school grading system) I would classify the highs and midtones with a 7 and the bass specifies who deal on emphasis on bass to 3. However, the access should, because this had the strongest pressure of the three tested headphones , Also from the volume of these headphones was the loudest.
Buedio HT: very cheap processing and it shows immediately if you hold the headphones in his hand. The buttons, the material affects everything and is of cheap plastic, the coupling is sometimes a bit difficult, but when you get the hang of these works.
The Sound: absolute disaster, the bass is present but it was already. No ups, no midtones, you might think you were in an adjoining room and heard only a muffled bass with some music from the party next door. School grade levels and midtones 9 Bass: 7
CLS410: When unpacking you realize that you have to expect a higher quality here. The build quality is good to very good. Sitting very comfortable at the top and are very light (of the three that CSL410 were the lightest) after only a short time you will hardly notice that you wear this head. The coupling was simple and went smoothly.
The sound: here the headphones have shown their strengths. The highs and midtones are sehrt good to hear also the bass is very good, not exaggerated but clearly, where I would have liked a little bit more in the higher tones. School grade: bass, treble and middle notes: 2
Furthermore, the CSL410 not oversized placed his keys on the only one of the shells, but discreetly in the inner area of the temple, which has to personally very, very much.
Winner (price / performance ratio) and very strong buy recommendation is for me the CSL 410, the second place August EP650 and bringing up the rear of the Bluedio HT, but I can NOT recommend.