Here it is
Suggestions: If you want to keep the box you could use either of
-25 Hz tuning, add a tube of diameter 70 mm, length 284 mm
-30 Hz tuning, add a tube of diameter 70 mm, length 179 mm
-35 Hz tuning, add a tube of diameter 100 mm, length 283 mm
The ones with higher tuning will give stronger, but not as deep bass.
Responses and maximum output levels for the suggested systems. Red= 25 Hz tuning, green=30 Hz tuning, blue=35 Hz tuning, black=closed box.
The simulations include a baffle step from a 30x60 cm baffle, but no room gain. The room gain will lift the lower frequencies, and the baffle step should typically be compensated for by lowering higher frequencies.
Suggestions: If you want to keep the box you could use either of
-25 Hz tuning, add a tube of diameter 70 mm, length 284 mm
-30 Hz tuning, add a tube of diameter 70 mm, length 179 mm
-35 Hz tuning, add a tube of diameter 100 mm, length 283 mm
The ones with higher tuning will give stronger, but not as deep bass.
An externally hosted image should be here but it was not working when we last tested it.
Responses and maximum output levels for the suggested systems. Red= 25 Hz tuning, green=30 Hz tuning, blue=35 Hz tuning, black=closed box.
The simulations include a baffle step from a 30x60 cm baffle, but no room gain. The room gain will lift the lower frequencies, and the baffle step should typically be compensated for by lowering higher frequencies.
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