Richersound bought the TDL name after TDL went under and they churned out nasty, cheap speakers under the name. If you can get hold of some original TDL transmission line speakers you'll be laughing - masses of low end but really well controlled. I have a pair of RTL 3s that are about 10 years old and they're still going strong. Picked them up for 60 quid (about 400 new)
Again, ebay is a good source.
http://cgi.ebay.co.uk/Pair-of-TDL-El...QQcmdZViewItem