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Post by starandchlorisse on Jun 13, 2016 14:43:13 GMT
Hi
Besides the actual sound which might tell you that a sub works properly a room measurement software or other can detect if a sub does not work properly ?
I mean it could show huge peak or nulls or some other kind of info indicating that there is a problem ?
(I Unplugged it by mistake and heard a strange noise when it was on the volume was low though - I don't hear anything wrong though - sometimes it is difficult to say )
Many thanks
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Post by rock on Jun 13, 2016 17:01:22 GMT
Sure, to some extent as it will measure frequency response. You don't want any or as little room reflections as possible, optimally only the speaker. In one of F. Alton Everest's books, he suggests a substitute for an anechoic chamber by using the outdoors during a still, quiet time. Preferably, you would be on top of a hill or a slope with the ground dropping away from the speaker being tested. But if it sounds OK, you probably did not damage it.
Last week, I got a Alto Truesonic TS210 550/1100 watt powered speaker to use as my stage keyboard amp/speaker combo; it's only 20 pounds! (I finally got tired of dragging my Peavey KB300 up and down my basement stairs). While I was testing it out, I thought I heard the tweeter making harsh resonant sounds on some sustained notes at full power. I stuck the offending organ key down and walked around the room only to find a decorative temple bell zinging away. (I can get all sorts of stuff to rattle). Moral of the story, don't blame the speaker until you eliminate all possibilities.
Cheers,
Rock
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Post by arnyk on Aug 8, 2016 9:37:40 GMT
Hi Besides the actual sound which might tell you that a sub works properly a room measurement software or other can detect if a sub does not work properly ? I mean it could show huge peak or nulls or some other kind of info indicating that there is a problem ? (I Unplugged it by mistake and heard a strange noise when it was on the volume was low though - I don't hear anything wrong though - sometimes it is difficult to say ) Many thanks The most commonly used software tools for measuring speakers including subwoofers are Room Eq Wizard and Holme Impulse (freeware) You need measurement mics (Behringer ECM 8000's are very common as are the MiniDSP USB) and if you use XLR-based mics a mic preamp such as the FocusRight Scarlett. Here is a site with a lot of fairly credible subwoofer measurements: Data Bass Subwoofer Measurement Site |
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