SVS CS+ custom tuning port plug - linear excursion limit exceeded? (1 Viewer)

[MarkFrab]

There was a little sheet included with my subs showing how bass extension was increased at the cost of total SPL when one used the included port plug. But for the 16-46CS+ (my model) it also shows that using the plug causes the driver to exceed it's linear excursion limit in, I think, the 20-25hz range.

How big of a problem would this be? Would it be more likely to bottom? Would THD increase? Any other concerns?

Thanks!

 

[SVS-Ron]

Mark,

Yes, your sub WOULD be more likely to bottom in that freq. range, with the plug. That's the downside of getting another 5Hz of extension (which on the 16-46 I find to be a bit uneccessary).

Now this isn't going to happen at "grandma levels". You are going to have to push your CS-Plus pretty hard to do it. There is no free lunch in the world of bass. In most cases, with healthy SPLs and most movies I'd leave the 16-46CS-Plus in stock mode for the very reason that sacrificing SPL's in that zone for 5-10Hz response (achievable with the port plug in with that sub given natural room gain) just isn't the best tradeoff in practical use.

Ron

 

[MarkFrab]

Thanks Ron, that's about what I figured. Besides, the black box, set in the 15hz filter position, would probably negate any effect the plug might otherwise have had.
Besides, I have the Buttkickers to cover the 5hz to 20hz range.
Regards.