The Rokit G3's might be suitable. Their 6" speaker goes all the way down to 38hz. [url=vhttp://www.krksys.com/krk-studio-monitor-speakers/rokit/rokit-6.html][url=vhttp://www.krksys.com/krk-studio-monitor-speakers/rokit/rokit-6.html][url=vhttp://www.krksys.com/krk-studio-monitor-speakers/rokit/rokit-6.html]vhttp://www.krksys.com/krk-studio-monitor-speakers/rokit/rokit-6.html[/url][/url][/url]