Betsy wow with Ribbon

This is nice and easy project which yields extremely good sounding bookshelf. Betsy wow (without whizzer) goes quite deep in closed box (Ikea bookshelf), so the sub is optional. But if you want to use sub, it can only help. I started by getting the dust cap out of the betsy wow, then glueing in brass phase plug. This way betsy is not attempting any hights. Then I added bsc to flatten the response, and G2 ribbon tweeter to continue past 20kHz. The result is pretty flat response, flat phase response, and very coherent sound. Only one cap is used on G2 ribbon, because its crossed at ~8kHz. This speaker is high efficiency too, and with 8 ohm resistance it presents nice load to any amplifier. It likes small class A amplifiers, but will handle anything. It gets loud, but its clean. Its no party speaker, but with the sub, it can be easily for music and ht.
Here are some pictures from construction.
Enjoy!