I ordered for my SHB9100 SHB9000 is accidentally spent underwater lately, after reading a lot of opinion on the new helmet, I started by ordering on Amazon with a price gun (67). I had paid the former SHB9000 nearly 99 on another site, there are two years of it.
Upon receipt, it is not out of place by the packaging and everything works as on the old, lappairage is fast and easily recognized by my iPhone 4 and my new iPad.
Side settings, the left side has become inoperative and everything goes the right side (handy if you want to lay his head on a pillow for example, impossible with SHB9000).
A little confusing at first, it is easy to get used to the new buttons to turn up the volume or change tracks.
Fortunately, and after dismantling and drying my SHB9000 revived and running again in Bluetooth, I could compare more closely to the sound of two helmets.
I was a little afraid of losing bass with the new SHB9100 because the reviews were not very complimentary in that direction.
Verdict: Yes bass are behind, but how clearly !!! The sound is crystalline and in some movies or series, understanding is better than the SHB9000.
Pity that Philips has not kept his famous bass of both acute SHB9000 SHB9100 bills !!
In any case, it remains a very good mobile headset, light and powerful (I did not yet charged, while for the duration of use, I do not know), the headphones are more comfortable than the old Version.
A purchase I do not regret, especially after trying to Asda Dr. Dre Beats Audio Bluetooth (269 !!) which greatly disappointed me and far below my old SHB9000 !!