Hey guys! I stumbled upon the Fane 12-250TC full range drivers and wanted to make a good old bass-reflex enclosure for them.

I also know I want a “boombox alignment” so I don’t have to use an equalizer as much. A good bump from 30/40 up up to 150Hz is wanted.

Tuning frequency will be 45Hz.

  • With 155L: 45Hz has +2dB, highest is 60Hz at +3.5dB and f3 is at 36,5Hz.

  • With 220-230L: 45Hz sits at +4.5dB, 50Hz even at +5dB, and f3 is still 36Hz. That is pretty much +2.5dB down low across the board.

Here’s a WinISD-screenshot for visualization

Will the +2-3db down low be noticeable?

  • Roy_McDunnoOPBEnglish
    1·
    10 months ago

    thanks for the top, I hadn’t looked at it this way! the new speakers should run in their own.

    BIBs are “bigger is better” speakers. Basically a voigr pipe is a tuned quarter wave tube, and a bib is double that, so a half-wave tube. like a big box with a slanted board in it and the opening is upwards to the ceiling, they work best in the corner where the sound is opened up and redirected by the ceiling corner. :-D