2way ported, 38.3 Hz (-6dB)
2way ported, 46.8 Hz (-6dB)
3way ported
3way Ported, 33.1 Hz (-6dB)
3way closed, 70.2 Hz (-6dB)
3way closed, 70.7 Hz (-6dB)
3way closed, 49.3Hz (-6dB)
