http://www.extravaganzi.com/helsinki-1-5-speakers-take-speaker-design-to-a-different-level/
"If you have a small to medium sized room with acoustics issues and large conventional treatments aren’t an option, you may want to take a look at Gradient’s Helsinki 1.5 Speakers. This very unusual looking open baffle speaker is designed specifically to work in smaller spaces and essentially ignore room mode problems via ingenious driver arrangements, rather than brute force digital signal processing."circa $6500
Perhaps you remember the Gradient subs?
"If you have a small to medium sized room with acoustics issues and large conventional treatments aren’t an option, you may want to take a look at Gradient’s Helsinki 1.5 Speakers. This very unusual looking open baffle speaker is designed specifically to work in smaller spaces and essentially ignore room mode problems via ingenious driver arrangements, rather than brute force digital signal processing."circa $6500
Perhaps you remember the Gradient subs?