I compared the specs between 130X and 130, the former(130X) has a larger magnet, and twice the Xmax which I conclude that 130X would be more linear than 130 esp at lower level. the other spec are essentially the same, even Fs, Vas and Qts. From this spec. I can assume at the bass end the sound can be perceived to be punchier.
Are there any other differences you may want us users to know before designing speakers based on 130X?
I am thinking of designing a flooring standing speakers based of one these configurations:
1. TMM (M is M130X) in TL box to make the bass goes lower.
2 MTM (M is M130X) also in TL box.
3. Bipole( ie one 130X in front and the other 130X behind) and a tweeter mounted in front.
The Bipole is a simple choice because the cabinet is easy to make, using M. King Mathcad worksheet.
The above is still in idea phase and your comments may make the design phase more concrete. So any comments?