I purchase the MartinLogan mlt-2 system at a Amazon cyber deal 6 month ago for 399.99 . the speaker be connect to a Onkyo ht-rc260 receiver , so the home theater setup cost I $ 720 . overall , I be very pleased with the sound quality of the speaker . I be ecstatic about the price . for bookshelf speaker , the sound be bright and crisp , with house rattle bass -lrb- if you want it -rrb- . however , the journey to this level of satisfaction be not without its turn and twist . when I receive the speaker , they be well packed and undamaged and easy to hookup , use 14ga speaker wire . they be be use in a large room -lrb- 20x45 -rrb- and they provide clean , room fill sound . there be a problem with the subwoofer . when in auto-mode , the subwoofer would automatically detect if a signal be be send and turn on\/off automatically . -lrb- someone with a integrated system would not need the sensor since the whole system would power on and off together . -rrb- the mlt-2 auto-function would cycle on\/off continuously , sometimes two or three time every half hour . when the subwoofer power off , it would make a big boom . I complain to customer service and they send out a second subwoofer immediately . I test they side by side and the subwoofer cycle on\/off in a similar manner , each time with a annoying boom . I continue my complaint and they send out a third unit ! now I have three subwoofer and I test they use different cable and different output on the receiver -lrb- the Onkyo have three dedicated subwoofer output -rrb- . all three unit behave almost identically , switching on and off within minute - sometimes seconds of each other . even after use the Onkyo speaker balancing program , the on\/off cycling continue - although to a much lesser extent . I finally increase the subwoofer gain manually to the maximum +10 db and the cyclig pretty much disappear . so I pack up the two replacement and send they back to MartinLogan . another reviewer in this section complain about receive defective speaker - the two replacement subwoofer that have be send to I be both damage , presumably by UPS . the first one have two corner crushed and one of the metal fin on the back heat appliance bent . the other have slight cabinet damage along a edge and corner . I be lucky with the original shipment , because everything be undamaged . I be able to mitigate the problem with the auto-function , by tweaking the amplifier . it be not perfect . sometimes the subwoofer cycle on\/off during a movie , which be annoying , but now it tend to be rare . if it be to become a problem , I would not use the auto function and remember to power the subwoofer on\/off manually . I might blame MartinLogan for this , but after read about the auto function , it seem that many manufacturer have this problem . for the price and sound quality , as well as the responsiveness of customer service though , I rate the MartinLogan mlt-2 5 star .