ArthurOgawa

If you connect to any combination of the two back panel audio input ports (Computer, Aux) and the dock audio input port, the speakers play all sources simultaneously, in effect mixing them together. Internally, they may be simply bridged together, instead of being individually buffered.

Concerning Yale's Con, ”taller iPhone / iPod Touch block speaker.“ One review site stated that the Reson8® speakers have one active driver and one passive driver. If so, and if the passive driver is the lower of the two, then docking your iPod will not greatly reduce the high frequency output (which would come from the active driver alone).