Lil' Brit... The "LS 3/5-MEH" Monitor build thread

[mzisserson]

So I ordered 30 of the sony buyout drivers, and the more I played with it, the better it looked in a small sealed cab with a Q of about 0.875-0.900. What better to put with a buyout driver than a big ol' fat paper cone tweeter? They have their advantages....

The is also the first venture that I am undertaking that is relying 100% on my own measurements. Here was the method:

1. Break in woofers, measure T/S with WT2
2. Design cabs around T/S
3. Build 4 cabs in one day (Why build just ONE pair? )
4. Measure Woofer IMP in cab
5. Measure Fq response mounted in cabinet 1M at 1W (middle of living room)
6. Get help from Jeff.
6.5 Remeasure
7. Realize my stoopit mistake and fix.... Throw it all in PCD and Design.

Below is what I came up with so far. The tweeter has really funky response. It is diffraction related for sure. If I tweak it I can get a 40dB reverse null, but I get a 5dB dip at 1.2 K doing so. So I stuck with the flatter FQ response and 20dB null...

Any thoughts? I did not include my "z" axis because it is accounted for in the measurements. Wondering if I need to move the woofer x-y?

This is DIY for the sake of DIY. It is fun!!!!

Subjectively speaking, this lil buyout is one heck of a driver. It will not handle much, or do deep bass, but it is super smooth with a fair amount of detail... running full range! The Bass it does have is "warm" and articulate. It is actually very nice.