My home designed 4" Micro monitor speakers. Targeted for ultra small size and big sound in my workspace.
It is a basic 2-way enclosure for second hand TB W4-1320SIF fullrange and Dayton ND20 rearmounted tweeters.
Crossed at around 8khz, 6db/oct
(Hor line: 10DB increments, nearfield response: 20CM)
80DB @ 1 watt, 1 meter
55-20000hz frequency range
around 2.5L internal volume
I used 9mm multiplex for the enclosure, and the woofer has around 8L front t-line vented enclosure tuned at ~43hz. the 3" fullrange has 2.5 liters closed to play in, i also applied 2 sheets of polyester filling for the dampening inside.
I love the sound they produce alot, they match my B&W DM603 S3 speakers very nicely