Star number two: Haptic and visual appeal. Material really feels good, for the price range in order.
Star number three: well tuned subwoofers. Pounding the Z2300 bass even at minimum legal monumental, one has tamed him at Z623 something. On max. Psyched he still brings a lot of pressure and it is also very low frequencies well again. I have a 650-euro ELAC subwoofers in the living room are with 340 watts RMS, and in direct comparison makes the relatively small Logitech woofer a good figure. He clearly does not serve up some power and the pressure, but for the narrow money that the Z623 will cost a good performance, I did not expect.
Neutral: Unfortunately still no optical input. Only 3.5mm jack and RCA.
First star deduction: I do not know which genius at Logitech has decided to implement the control of the plant in the right speaker. Impractical cubed. In addition, you can see the already frugal sized Lautsrecherkabel (about 1.5-2 m) at least in the right speaker not renew. If no wireless Fernbedinung is already at the price of it, then at least one wired. So that's nothing.
Deduction second Star: Does not really directly related to the speakers, special to the completely inept Logitech Support. Be forever answered take requests until they let the are processed. In addition, there is seemingly happy times before, go that received requests in-house Systemnirwana lost and they are one to two days later untraceable when making inquiries. Thus, you can start the whole dance from the beginning. The make other manufacturers significantly better! Shame on you Logitech Support.
All in all, recommended loudspeaker with neat Bums and good sound for relatively narrow money. Buy recommendation on my part.
Addendum: After initial enthusiasm turned out that also ordered the second Z623 anything on the subwoofer or the crossover does not fit. The subwoofer plays cheerfully with the midtones and are in quieter to medium volume only croaking bass by himself. A third time I did not order me determined. Schade Logitech, first support Ka @ # s and then it's also the quality downhill. I for my part am now but access to the competition and bring me a creative system in the house.