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THAM 15" DRIVER 12V RIG

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lola_handycam View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote lola_handycam Quote  Post ReplyReply Direct Link To This Post Topic: THAM 15" DRIVER 12V RIG
    Posted: 11 April 2020 at 11:49pm
Hi everyone, 

I am building a 12V P.A System for 100 people outdoor parties. I'm aiming to build two THAM 15" for the subs.
I have just analysed three Drivers on Hornresp for the THAM 15", but it's my first time using Hornresp so in do not guarantee the exactitude of the results (see images below), i still hope it can help anyone in the same situation ! But i might need your help to decide.




The three speakers that i have selected are the

BEYMA 15MC700            Fs41.00Hz    Re5,9Ω  Qms4,8   Qes0,38   Qts0,35   Vas153L    Cms140.0μm/N Rms5,7kg/s    η02,7%   Sd0,088m2.   Xmax9,8mm  Vd880cm   Le1mH 

Precision Devices PD.156 Fs50.25Hz  Re5.69Ω  Qms7.45  Qes0.5    Qts0.47  Vas93.4L    Cms80.83μm/N                     η03.63%   Sd907.92 cm2   Xmax8.1mm  Vd0.648L    Le1mH 

 FaitalPRO 15HP1010      Fs40.00Hz  Re5,3Ω    Qms10     Qes0,38   Qts0,37  Vas93L      Cms140μm/N   Rms5,7kg/s    η02%   Sd759cm² .   Xmax9,8mm                              Le1.8mH 

Each Sub will be individually powered with Pioneer GM-D9701 class D amp (500W RMS at 4Ohm, so i guess 250W RMS since speakers are 8Ohm). 
I know that for Tapped Horn i should head to large Xmax.
I also know i should seek for efficient driver, that have good sensitivity. 
I also don't want a driver that would cost more than ~200€
That being said, i'm still struggling to make my decision (its my first time buying a speaker)

Do you have any advice on which one to pick (or on any other appropriate speaker for this purpouse)

I am also open to other sub plan if you have any suggestions !

thanks in advance, 

Lola


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Greg32 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Greg32 Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2020 at 1:21pm
well from your sims the faital looks best and has good xmax, at the power your going to use you shouldn't be getting near xmax anyway. Greg
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lola_handycam View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote lola_handycam Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2020 at 2:45pm
All right, but they are the least efficient (2%) and least sensible (96dB), 
the two other one are rated  3% efficient and 98dB sensitive (BEYMA) and 3.63 % efficient and 97dB sensitive (PRECISION DEVICES) 
So in a 12V rigs i must say i don't know wich parameters to take in account the most, i'm still pretty newbie in these terms !

Thanks for the advice anyhow Greg !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Greg32 Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2020 at 11:34pm
They will all be very similar efficiency  under 100hz. Efficiency is not usually measured down that low

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