The mechanical construction makes them awkward to work on, and they seem to have just too many problems. However, I leave this page up as it may be of interest or useful to some. Summary These boxes, made by British manufacturer KEF, are floor standing cubes that are about 35 cm square. They contain a single bass speaker, some preamp electronics and a power amplifier.
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Subwoofer is perfectly equipped. Available - full set of terminals both high-and low-amplitude. Before exiting, and low-and high-amplitude signals are corrected high-pass filter, which makes it easier frontal acoustics and improves the quality of coordination.
Phase emission varies smoothly. The subwoofer can be switched on and off automatically, analyzed the situation in the presence of the input signal. Amplifier is located in an isolated volume of useful acoustic design compartment - a reasonable solution, as they often open the amplifier unit acoustically excited at the mechanical resonant frequencies of its different elements: the noise is small, but becomes sub localizable by ear.
PSW manifests itself in its entirety advantages when the handle gain passes for "12 hours". When you turn trifonicheskom Couple small subwoofer speakers demonstrated a well-integrated musical image, assembled, like "lean" bass. Significantly deeper component lower bass does not affect the machine, but very happy confidence with which he together with the front prescribes attack impact sound.
It should be noted rather high detail and cleanliness proper bass. In our conditions optimal for 2. For theatrical purposes strip can be maximized. In this case, PSW confident enough fueling the lower layers of the atmosphere, even the sound on "explosive" scenes. KEF PSW is able to correctly extend the low frequency region while working with compact speakers that can successfully use it in the music 2.
Moreover, in this case a signal for stereoscopic advisable to adjust the treble integrated filters. Powered PSW in a small room, you can get comfortable theater sound.
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