I recently bought a pair of Salk HT2-TLs which replaced a pair of Salk 1801TLs. I've had the 1801TLs up for sale but so far no serious offers. So I decided to try the 1801TLs as surrounds in place of a small pair of wall mounted a/d/s 300Cs. Having been a big fan of surround music for a number of years I always wanted to use larger speakers for surrounds but really didn't have the space for them in my small listening room/living room (13'D x 17'W). Recently I took a look at my room and found that if a few things were moved around there would be space for the 1801TLs as surround. Well yesterday was the big day and I spent a few hours placing the 1801TLs and then doing a fresh Dirac calibration. The first surround disc up was Mark Knopfler's Sailing to Philadelphia DVD-A. All I can say is WOW! The difference in the way the sound envelopes the listening area is incredible. Not only is the surround effect so much better the bass is also so much more prominent as is the midrange. The 1801TLs are not a perfect match for the HT2-TLs (Raal ribbon tweeter vs. Hiquphon OW2 dome tweeter) the bass driver in the 1801TLs is the same as the two in the HT2-TLs (Seas Excel W18). But both speakers have that unmistakable smooth Salk house sound. Fortunately yesterday was a rainy day in southern Maine so I was able to play quite a bit of surround music . The list would include: Roxy Music - Avalon SACD Beck - Sea Change SACD (such a positive album, locked up all sharp knives, shoe laces and belts ) Donald Fagen - Kamakiriad DVD-A Yes - Tales From Topographic Oceans DVD-A Jeff Beck - Blow By Blow APO SACD After listening to all of the above listed surround titles for quite some time (other than Yes' TFTO) I can say that without a doubt the addition of the 1801TLs as surrounds is a HUGE difference in SQ. Especially with Blow By Blow as it's a quad mix and having four large speakers to play this incredible album in surround is huge! I've dismissed the importance of using large full range surrounds in the past. I thought my system sounded great using the small a/d/s 300Cs as surrounds. I have to admit I was dead wrong in thinking there would not be much of a difference. I have to credit fellow SH member Hymetta Winslow for his posts advocating the use full range surrounds. In the past HW and I have gone round and round about this and will gladly admit he is 100% right! I'm now also a huge advocate for large full range surrounds in a major way! Now all I need is more time to explore my favorite surround titles and sit back an crank the volume !