07-13-2015 Post does not mapped to Knowledge Tree Romy the Cat Boston, MA Posts 10,156 Joined on 05-28-2004 Post #: 1 Post ID: 21771 Reply to: 21771 The 5th horns in stack or a 5th wheel? fiogf49gjkf0d In diyaudio site there is guy who is planning to do something like this. http://www.diyaudio.com/forums/multi-way/273468-115hz-tractrix-turned-plywood-bass-horn.html  Click the 5th picture from above. This is very interesting move as he introduced another channel, making the transition between the channels way less granular it however increases the total highs of the system. I do not know what would benefit of it, I do see some advantaged and some discadvantaged. "I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche