Recent content by whaleboat

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    Resonant frequency question

    I'm looking at some subs that have a resonant frequency of 35hz . The amps I'm looking at have a high pass filter at 30hz . I have my subs on an aux out and mainly just CD music goes to them , but there's a chance that I might send a bass guitar or kick drum their way someday . Will I get much...
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    Acoustical Shell Experience

    I have the Wenger Diva set-up , four clouds , 9 wall towers . They are durable and easy to set up . But , they've made my job difficult . We don't have enough fly space to store the clouds high enough to be out of the way of my electrics . I really have to work hard to light any show . The...
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    DI question

    cpf , I was going to go blind but I just gave the promoter a list with a few questions . Hopefully he won't lose the list and can get ahold of his performer . Thanks
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    DI question

    Thanks , Footer . Yeah , I forgot about the pop . I guess i'll just have to wait til he's center stage giving me an ugly look before engaging the phantom power . Maybe I'll get lucky and it'll be a passive DI .
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    DI question

    I've got a beauty pageant Saturday , the promoter tells me there is going to be "a surprise celebrity performance" it'll be a guitar . The promoter knows nothing about sound and I can't get ahold of the surprise celebrity . I was told the guitar player will just walk out on stage and plug his...
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    On Stage Monitors

    Sometimes dealing with performers and their monitors can be tough , I once had a choir concert where they wanted so much monitor volume , that it was louder than I wanted the volume in the house . I ended up pulling everything out of the house and what the audience heard was through the monitors .
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    Automotive subs ?

    Good info . Thanks
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    Automotive subs ?

    I'd like to do some experimenting with subwoofer enclosure design . Can I use automotive speakers with my house amps ? I have a QSC CX 302 that I don't use anymore and I could use that to power car subs . The reason I want to use car subs is that I can get small ones , like 8 or 10 inch that put...
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    Batten loading question .

    Thanks , Mr.Powers , that is exactly the information I was looking for .
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    Batten loading question .

    I'm trying to determine the maximum safe working load for the bottom batten of the electrics I hang my lights from . All my rigging was professionally installed so just assume all the suspension hardware is correct . My battens are 1 1/2" schedule 40 pipe hung at 8 foot centers . I'v seen from...
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    Sound waves

    Let's say the meter is set up 2o feet from a speaker and centered on both the horizontal and vertical planes with an infinate amount of space above and below it . As a sine wave is depicted on paper , with crests and troughs , let's define the crest as a 10db loss and the trough as the same , a...
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    Sound waves

    As I understand it , the length of a sound wave measured fromm crest to crest is always the same at a given frequency . But amplitude is variable , are there any constants regulating amplitude height ? For instance , if I got a reading of 60 db with a meter using a sound source of 400 hz , and...
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    Sound bites ?

    What do radio talk show hosts and DJ's use to playback soundbites and effects like brakes squeeling , applause , etc. When I'm listening to a talk show , sometimes the sound effects are spontaneous , sort of going with the flow of the show , and happen way to quick to be on a CD , or anything...
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    Full range speaker choice .

    Yes , the horns of the trx's were supposed to be oriented correctly by the installer .
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    Full range speaker choice .

    The room , not including the stage , is roughly 75'x75' and seats 1,000 . The pit and aisleways are carpeted the floor of the seating areas is concrete . The walls are concrete filled cinderblock and the cieling is sheetrock angled in a sort of series of inverted steps . I have Renkus-Heinz...
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