139L-33hz-transfer-magnitude

Lorantz transfer function, with the 138.9 litre enclosure tuned at 33 Hz (thats 2 x 10cm vents, 23.75 cm long).

One of these lines is using the T/S values from the manufacturers specs, the others (overlaid) are from the left and right values measured from my drivers. Although there is some variation, working from either set of specs gives fairly close, usable results with this cabinet.