$100 – $500
I had purchased a pair of B stock Zu Cubes from Sean at Zu Audio awhile back. I like them, but thought I could improve on the sound quality and still use similar parts. My littlest son also need a set of speakers for a 3116 chip amp too.
Clone the Zu Cube in dimensions, parts, and clean up the response curve. I got help from an owner of a speaker manufacturer from Texas (curves and xo).
Eminence Beta 10 CX 10 Inch Coax driver 290-502
Eminence ASD 1001 1 Inch HF Horn Driver 290-525
Straight copy of the 10.5 inch cubed box, 3/4 inch left over material, coated with Dura Tech black, and loaded with damping material.
Super simple, cut all the squares the same dimensions, outside dimension are 10.5 inch cubed.
The current Zu XO consists of a single inline cap to roll off the tweeter. This is 1.0 uf cap. A true xo can even out the frequency response significantly.
I had a good time making these with my middle schooler. These are good book shelf speakers and need some lower end help or a subwoofer, but if you can get the parts for a reasonable price, they are much cheaper than 1K.
About the Designer:
I like to fix things and make them better, but not always cost effective…