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Sound (bass) coming from back of cabs
- nickyburnell
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I've heard scoops do it, Quakes when on their side do it, T18's can do it when cone facing out.
Sound better on stage so to speak.
Technical reasons??
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- bee
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- Sher Singh
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bee wrote: yeah good question....... the t18's in one of the venues i dj at sound better from behind!!!!!! i.e. the bass is lower...... smiley29
this could be because the lower (in frequency) you go, the coverage becomes more omni-directional. A bass note, which is probably at the -6db point of the Sub's capability, will usually appear to be louder behind the Subwoofer in relation to the higher bass notes which overpower the speaker's response while you are in front of it.
In large venues, cardioid subwoofer arrangements are sometimes used to control the bass spill on to the stage.
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- levyte357
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Sher Singh wrote:
this could be because the lower (in frequency) you go, the coverage becomes more omni-directional.
This does make sense.
Why do some 18" drivers manifest this phenomenon more than others ?
In the same cab, have seen driver A project huge amounts of SPL to the rear of the cab with acceptable SPL at the front,
Driver B provided excellent SPL at the front, with lesser SPL to the rear.
Driver B was definetly known to be more efficient.
\"When in Vegas, do as the vegasians do\".
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- tony.a.s.s.
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- bee
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- tony.a.s.s.
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I think that if you were using a poorly built cab, it may stand there like a giant radiating machine, sending sound in all directions.
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- mykey-
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I'll let you know how I get on with them as far a bass leakage
the idea was to achieve what often happens when I enclose subs in a concrete dj stand, obviously no bass out the back and all out the front
so 36mm should help a LITTLE smiley24
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- levyte357
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Backward motion on some 18" drivers (except PD), often seems excessive in comparison to forward motion.
Could this not be contributory?
\"When in Vegas, do as the vegasians do\".
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- mykey-
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unless they are really old and called Wembly B lines
![:? :?](/confuse.gif)
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