It has been written much about this part, a number of points I would like klarifizieren here. 1) Connect, connect enjoy, 2) The output level of Harman part compared to Logitech 3.7 dB louder (1 V rms) 3) In the sound quality in comparison AB (directly & Bluetooth, iPhone Dock vs. Bluetooth, MP3 320kbps), the Harman part proposes well. With AKH K500 headphones I could hear a barely perceptible degradation of sound especially in Old voices. However, this is suffering at fairly high level and falls not on the normal hearing. 4) (the I am surprised that it struck anyone yet). The Harman part rushes but quite strong in quiet passages. I found it disturbing when Handel Arias - Lorraine Hunt Lieberson-, Track 2 Theodora: to As With Rosy Steps The Morn. Here is even at full volume of a disturbing noise source "under" Music. Somehow a pity. At first I had but the enclosed mode power under suspicion a "analog" 5V power supply brought no improvement. For those who want to simultaneously hear that. Volume at the source down, volume up to the stereo system. If on the source you go to break, so that Harman part goes with - as has already been written - audible creaking in a kind of standby mode and the noise is gone. A kindly information furnished by Amazon spare adapter shows the same behavior, it is therefore likely to be a series fault. Therefore, the point deduction. The specified 85 dB signal to noise ratio I do not think Harman. It should rather be only about 65 dB. Even good, but in the digital age should be indoors more. 5) The problem of some described ranges I could not understand. Especially compared to Logitech the range is even slightly higher at Harman part. 6) Because it was also an issue - Power consumption: Standby (nothing lights up): 0.1 W, with me must therefore always be on the network Searching (light flashes): 0.2 W Active (light on): 0.5 W
Conclusion: must remain (the practical aspect and the sound predominate but the disadvantages), the signal to noise ratio Harman would have to rework something.
