#Unibox speaker drivers
The speakers that I now use have two of the of the drivers that I gave you specs on in each speaker xovered at 150Hz at 12db/oct. the hole was filled in by the room and the response was acceptably flat at the listening position. The sub was actively crossed over at 50Hz at 18dB/oct. This is a very inexpensive and effective xover. Subs I used a small value foil and film cap in series with the main amp for a 6dB rolloff at 115Hz to keep the lows out of my main speakers. If you add a sub to increase the headroom available in the low frequency region you will have to filter low frequencies out of the mains to do any good.
In room with room gain assumptions.Power handling is 400watts with linear response to about 18Hz.Īrctos,it depends on the low frequency content of the music you play and These numbers should give a very different result. Try increasing the Xmax figure and power handling figure and see what the program does with different numbers. You may also require a woofer with a higher thermal power rating in addition to the above parameters to stay out of trouble. You may need a larger woofer or one with a larger Xmax figure or both to not run into problems. What woofer do you have and what is its' Xmax and Vd. When you feed the numbers in the program tells you that for this woofer in this enclosure you run out of excursion at a certain frequency and the max loudness at this frequency is x. Your woofer has a certain amount linear excursion and power handling capability. Arctos, it sounds like you are running into displacement limited acoustic power rating and displacement limited electrical power rating.
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