I am going to build a pair of speakers that I intend to keep for a long time and I want to do it right. I have decided on a design I call the Wx system. This uses a two-way design with small wide-range drivers as midbasses (4") to push the crossover point up to about 10,000 Hz, out of the critical midrange area. Then to avoid extra intermodulation distortion in the midbasses, they are relieved of any bass information below 150 Hz by a stereo pair of bass modules below the speakers (similar to the Series III 6th-order Bandpass Acoustimass modules used by Bose but rather than being used as the subwoofer, it only fills in the bass range from 150Hz down to 40 Hz). I like the sound of the 6th-order bandpass enclosure.
The mains will use 4" Tangband W4-616S woofers with the paper cones and the aluminum phase plug, crossed over with a 2nd-order crossover at 10,000 Hz with a Dayton kapton-film ribbon tweeter. The Tangbands respond down to 65 Hz, but for a stereo pair which will not be used with a separate powered subwoofer for a long time, this is not suitable for me.
So I have schemed to add a pair of 6th-order bandpass bass modules with 4 Dayton 5.25" woofers each. However, I am not completely set on the 6th-order bandpass boxes yet. I like the round sound of the Bandpass box that came with the Bose Acoustimass 3 series III system but the satellites were too small and the newer Acoustimass woofers (8th-order) are too slow for my liking. I could potentially be swayed to use direct-radiating woofers if that would be the best way to make relatively high output bass modules. This is similar to the way that some speakers have optional bass modules.
So. am I out of my mind on any part of this?
The mains will use 4" Tangband W4-616S woofers with the paper cones and the aluminum phase plug, crossed over with a 2nd-order crossover at 10,000 Hz with a Dayton kapton-film ribbon tweeter. The Tangbands respond down to 65 Hz, but for a stereo pair which will not be used with a separate powered subwoofer for a long time, this is not suitable for me.
So I have schemed to add a pair of 6th-order bandpass bass modules with 4 Dayton 5.25" woofers each. However, I am not completely set on the 6th-order bandpass boxes yet. I like the round sound of the Bandpass box that came with the Bose Acoustimass 3 series III system but the satellites were too small and the newer Acoustimass woofers (8th-order) are too slow for my liking. I could potentially be swayed to use direct-radiating woofers if that would be the best way to make relatively high output bass modules. This is similar to the way that some speakers have optional bass modules.
So. am I out of my mind on any part of this?