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External crossover unit running mains full-range with internal sub crossover freq control

Is there any reason to use an external high-end crossover unit if mains run full-range and subs have internal crossover control?

I run Harbeth 30.2s and dual HUS ULS-15 MK2 subs.
PS Audio BHK 300 monos have plenty of power at 300 wpc

Had been using HSU High-End Crossover external unit http://www.hsuresearch.com/products/high-end-crossover.html and running subs around 60 Hz (Harbeth LF is 50Hz). Seems if running mains full range and subs have internal crossover control adding an external crossover just adds potential for signal degradation into the chain - not to mention additional interconnect costs.s

Any advice?
128x128cantorgale

Showing 1 response by erik_squires

erik_squires
5,268 posts
 
Sure, you are correct. The main reason to use a line level crossover is to reduce the power your amps use, as well as to improve the integration between your main and subs.

Limiting the satellites improves dynamic range, lowers distortion and reduces the comb filtering in the pass to the subs.

If you aren't using it that way, don't use it. :)
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