looks like an older post restarted. One thought for the author of this. to get sound pressure at any freq to the listener the cone needs to move at that freq and for a fixed area of driver the excursion needs to alter. Think volume of air moved. In this scenario add the equation F=ma (force = mass x acceleration) so for really fast freqs (big a) you want a small m to keep the force down. ie if you take a big driver and run 15K hz you will likely need small excursion but you will be driving it at silly high accelerations and have enormous force. Converse is true as well. A tweeter can drive at very high freqs and have lower force as it is very small but to get the SPL and still be small (= small area) you would need crazy high excursion. its all an engineering tradeoff driven by F=ma. I think this is why the bose 2.5 inch driver in many of their products has no bottom or top, just middle.
Opinions on Full-Range/single driver speakers
I am considering a DIY project to build a pair of single driver speakers. My current idea is to put Jordan JX9s into Transmission line cabinets. I am a competent woodworker and there are lots of plans on the internet.
I do really value the opinions of you audiogon members out there with lots of listening experience so I am curious what your opinions are on single driver speakers. If you can also comment on wide-baffle versus narrow baffle designs, that would be helpful.
My front end is a Monarchy tube DAC 25 with Matsushista tubes and DIP Classic, coupled to an AYRE DX7E, all interconnects and cables are DIY magnet wire. I am currently using Green Mountain Europa's and a modified Paradigm subwoofer.
After enjoying GMA's and experiencing time/phase coherent sound, I started looking at other options for coherent systems. It seems the simplest design is a good full range driver (no whiffle cone) in a TL or QWL cabinet.
So your opinions are appreciated. I would prefer if you did not advise me to purchase your favorite speaker as that is not the type of information I am seeking.
Thanks in advance for your time!
Drew.
I do really value the opinions of you audiogon members out there with lots of listening experience so I am curious what your opinions are on single driver speakers. If you can also comment on wide-baffle versus narrow baffle designs, that would be helpful.
My front end is a Monarchy tube DAC 25 with Matsushista tubes and DIP Classic, coupled to an AYRE DX7E, all interconnects and cables are DIY magnet wire. I am currently using Green Mountain Europa's and a modified Paradigm subwoofer.
After enjoying GMA's and experiencing time/phase coherent sound, I started looking at other options for coherent systems. It seems the simplest design is a good full range driver (no whiffle cone) in a TL or QWL cabinet.
So your opinions are appreciated. I would prefer if you did not advise me to purchase your favorite speaker as that is not the type of information I am seeking.
Thanks in advance for your time!
Drew.