I have a pair of Fane KC18-300C sat here and was wondering if they would perform best in the cubo 18 or extended version.
They are not very powerful drivers and I feel a design like this is required to get the most out of them.
In the es-18 they sim ok down to around 55hz but I was hoping something like 40hz could be achieved. What do you think?
The KC18-300C has a high Vas and medium Qes making it less suitable for small closed chambers, which explains the limited low end extension in the ES-18.
Qts x Vas > 120, Cubo Standard
Qts x Vas = 100 - 120, Cubo Extended or Standard
Qts x Vas < 100, Cubo Extended
It's Qts x Vas product is near 170 making it a clear contender for Cubo 18 Standard. This 40 Hz should definitely be achievable, due to it's low Xmax of 5 mm, at high medium power levels a 40 Hz high pass is recommended.