The listing is for a complete unassembled North Creek Music - Echo 5.0 speaker kit.
The Echo comes in component form, crossover unassembled but with detailed cabinet drawings and crossover assembly plans that can also be directly downloaded from this site. Drivers are top notch - the North 13W-06S 5" woofer and North D25-06S silk dome tweeter. Assembly encompasses all aspects of speaker building and is an excellent project for the beginning speaker builder and/or audiophile looking for more insight into the loudspeaker manufacturing process.
http://www.northcreekmusic.com/Echo/EchoInfo.htmEcho Bookshelf Monitor Kit - Two speakers (1 woofer, 1 tweeter)(x2) + Crossover
Echo MTM Center Channel Kit - One Speaker (2 woofer's, 1 tweeter) + Crossover
Echo MTM Mini-Tower Kit - Two Speakers (2 woofer's, 1 tweeter)(x2) + Crossover
I know at one point the North D25-06S was considered one of the best budget tweeters - and 5 brand new in box are included in this kit.
This system is not a high-output system (e.g., SVS, HSU, etc.), but its still a high-quality system.