V4lve Posted June 4, 2009 Share Posted June 4, 2009 Hey. I just replaced the castors on my Peavey 115 with feet. Where did all that bottom come from? Quote Link to comment Share on other sites More sharing options...
rodl2005 Posted June 5, 2009 Share Posted June 5, 2009 (edited) The floor!!!! It's called Coupling!! :-) Edited June 5, 2009 by rodl2005 Quote Link to comment Share on other sites More sharing options...
V4lve Posted June 5, 2009 Author Share Posted June 5, 2009 [quote name='rodl2005' post='506069' date='Jun 5 2009, 05:15 AM']The floor!!!! It's called Coupling!! :-)[/quote] Yay! Quote Link to comment Share on other sites More sharing options...
alexclaber Posted June 5, 2009 Share Posted June 5, 2009 [quote name='rodl2005' post='506069' date='Jun 5 2009, 05:15 AM']The floor!!!! It's called Coupling!! :-)[/quote] Unfortunately it's the rather random and unpredictable variety of coupling called mechanical coupling, whereby the stage floor acts as a giant drum skin. I wouldn't want to be reliant on that for my lows, especially as it often causes big bottom onstage but not out in the room where you really need it. To get acoustic coupling just keep your cab within a foot or two of the floor and walls - that gives you extra lows with little risk of membrane resonance weirdness, just straightforward reflected sound from your cab coming back and reinforcing the sound that's going forward. Alex Quote Link to comment Share on other sites More sharing options...
Bilbo Posted June 5, 2009 Share Posted June 5, 2009 [quote name='alexclaber' post='506429' date='Jun 5 2009, 03:39 PM']Unfortunately it's the rather random and unpredictable variety of coupling called mechanical coupling, whereby the stage floor acts as a giant drum skin. I wouldn't want to be reliant on that for my lows, especially as it often causes big bottom onstage but not out in the room where you really need it. To get acoustic coupling just keep your cab within a foot or two of the floor and walls - that gives you extra lows with little risk of membrane resonance weirdness, just straightforward reflected sound from your cab coming back and reinforcing the sound that's going forward. Alex[/quote] Hey, Alex. You know some weird stuff, man... Quote Link to comment Share on other sites More sharing options...
V4lve Posted June 10, 2009 Author Share Posted June 10, 2009 [quote name='alexclaber' post='506429' date='Jun 5 2009, 03:39 PM']Unfortunately it's the rather random and unpredictable variety of coupling called mechanical coupling, whereby the stage floor acts as a giant drum skin. I wouldn't want to be reliant on that for my lows, especially as it often causes big bottom onstage but not out in the room where you really need it. To get acoustic coupling just keep your cab within a foot or two of the floor and walls - that gives you extra lows with little risk of membrane resonance weirdness, just straightforward reflected sound from your cab coming back and reinforcing the sound that's going forward. Alex[/quote] Ta. Keeping my cab a foot of the floor will be in interesting challenge--moving it horizontally is hard enough! Quote Link to comment Share on other sites More sharing options...
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