Trelja,
Most people either love or hate the sound of Lowther. Lowther’s have a long break in period. Another speaker that costs less but could be substituted would be the Japanese made Fostex.
Instead of me telling you my thoughts, check out the website at: http://www.oldhifi.com/ (David Dicks operator of the site could also give you some great information) it’s a wealth of information, and in my opinion one of the best prices available.
The Fostex can also be purchased at the above website or at: http://www.madisound.com/
Twl would also be a great wealth of information regarding the Lowther drivers.
Semper Fi