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Stacking subs

For years I’ve used a pair of Velodyne HGS-15s placed in the front corners. They are acoustically corrected by a bass manager and seem to integrate flawlessly with the KEF Reference 1s. In a recent post, auxinput suggested I replace the HGS-15s with HGS-10s for LF extension of the KEFs and use the HGS-15s with LFE from the Bryston SP3. That seems like a fine suggestion. I wonder about stacking the HGS-10s in the corners atop the HGS-15s, the easiest and neatest solution. Any thoughts or advice would be appreciated.
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Showing 3 responses by dbphd

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dbphd OP
1,619 posts
 
Another possibility is to use LFE from the SP3 with my third, as yet unused, HGS-15. In that case the sub would be on the side wall. The real advantage is that I wouldn’t need to mess with the current setup that sounds so good.

Previously I perceived the KEF Reference 1s to sound great with jazz and baroque, but less good for large orchestrations. But integrating them at 80 Hz with the HGS-15s changed that perception entirely. The setup does a Mahler symphony grandly.
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dbphd OP
1,619 posts
 
Yes, especially adding two.  Some argue that high-passing your mains to relieve them of low frequencies handled by the subs duty will enhance their sound.
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dbphd OP
1,619 posts
 
I use a Velodyne SMS-1 bass manager that provides acoustic room correction, and low pass at 80 Hz with a 24 dB/octave slope. I’ve tried high-pass, but it seems to remove a sense of air. That may be peculiar to the Ayre zero feedback design of the preamp and amp between which the filter has been inserted.
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