Volume of the box/enclosure. Golden ratio of length, width and depth using theBox Calculator function. Resonance frequency of the box. Half power frequency(-3 dB point). Frequency - decibel response plot. Power - decibel response plot. ...
The 4th order bandpass box design is not recommended for the first time builder. You need some experience before you get into these complicated designs. Actually, if you are a good listener and/or are savvy with enclosure design software, you shouldn’t have much of a hassle when making thi...