In Reply to: Re: Hey the file you sent is great, I have a few questions though........ posted by Adrian Mack on February 24, 2003 at 02:55:10:
The π compensation circuit does three things:1. Attenuates the HF section to match the LF section
2. Augments the top octave to compensate for rolloff
3. Damps the peak at resonanceSo to use a simple L-Pad will accomplish one of these things, but you'll still need to find solutions for the other two.
On some of my speaker designs, I use a midwoofer up to the point where it begins to rolloff. Most of these have some amount of series inductance, but it is used for response shaping rather than as a crossover. In that case, the Zobel is often omitted, and without it, the coil will not act as a first-order crossover. I call this arrangement a pseudo-first-order filter.
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