2way DIY LS bookshelf/standmounter kit project

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Request guidance for complete 2way DIY .After reading through the threads
the one's under the list are

GR Research X and N series : would prefer bigger mid/woofer and higher sensitivity. Also folks in India have built these given the VFM of sound/price ratio.

Any suggestions welcome for 2way DIY LS bookshelf/standmounter/atleast 90db sensitivity if possible. Min 6.5inch mid/woofer or upto 8inch.

Thanks.