I'm a new reader of your website and one subject which interests me a lot is that of upper bass horns.
As you have noted time and again (with which I agree almost completely, after reading a lot of 'research' [many claiming to defy the laws of physics]), is that most designs claiming horn bass loading under 100 Hz are false. The laws of physics cannot change.
In light of this fact, I have one question concerning horn loading in the range of 40 Hz to 400 Hz: Is it possible to attain good performance in this range in a design with both the front and back of the driver horn loaded? (I'm in the process of designing a horn for this range, but I'm really interested in knowing if a design using the energy from both the front and back of the driver might yield good results--perhaps higher efficiency--without unacceptable phase, cancellation, or other potential problems. One reason for wanting to limit the upper range to 400 Hz is that I may implement a partial bend near the throat to accommodate the proper length of the horn [the horn will be vertical with the driver facing downward and the sound exiting 90 degrees to the audience]. My aim is to use the system without a subwoofer.)
Any light you can shed on the matter will be most appreciated. |