Boasting hefty specifications and a good range of connectivity and processing features, the Z-680 THX speaker system from Logitech is a powerhouse to be reckoned with. Its foundation is a 200W sub-woofer, which is very sturdy and featured a bass port on its side used to improve low frequency output. Clear, deep bass with a nice roll-off was produced in our testing, and the five accompanying 50W satellites did a good job of handling the middle and high frequencies of our test sources with ease.
Setting up the unit is a simple task and is aided by the included documentation. For testing we connected the system to a computer, a PlayStation 2 console and a portable MP3 player. These devices were plugged into the back of the control unit of the speaker system, whose blue LCD display is hard to read unless viewed from the correct angle. Inputs on the rear of the unit include optical, digital coaxial, and three stereo jacks for use with six-channel sound cards. The front of the unit has a stereo jack also. You can connect devices to each of these inputs and conveniently switch between them without having to fiddle with the wires.
Decoders for Dolby Digital, Dolby Pro Logic II and DTS are provided, and surround sound effects, such as Stereo x2 (four speaker stereo sound) and six-channel direct sound can be used. Startlingly, we found that switching between these effects caused the volume to be reset to a louder level than we had initially chosen.
The unit is ready to go straight out of the box, as all cables are provided, including optical and coaxial. The wire length for the speakers is also generous. A wireless remote control is provided for convenience.
In brief: Logitech Z-680
This system conforms to the THX standard set by Lucasfilm and is a great all-round central entertainment point for DVD players, gaming consoles and music listening devices alike.
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