heart Cubo 18

6 months 1 day ago #24502 by songatron
Replied by songatron on topic Cubo 18
Great! Thank you as always!

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2 months 1 week ago #24594 by hectorberman
Replied by hectorberman on topic Cubo 18
Hello Mr Cubo

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? 

Many thanks for your many contributions, Hector.

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2 months 1 week ago #24596 by Cubo15
Replied by Cubo15 on topic Cubo 18
Hi Hector,

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.

Best regards Cubo

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