Faital 12RS430
currently 296 bucks USD
i think is the best bet if somebody want to build a PAL12, it takes the same power as the 12FG100 and have xmax of 12.8mm
but cost around 35 bucks less than the 12FG100 in the USA from USSpeaker
only thing caveat is that it is offered in 8 Ohm only
currently 296 bucks USD
i think is the best bet if somebody want to build a PAL12, it takes the same power as the 12FG100 and have xmax of 12.8mm
but cost around 35 bucks less than the 12FG100 in the USA from USSpeaker
only thing caveat is that it is offered in 8 Ohm only
Just recapping, how sensitivity of a driver affects the SPL , the Dayton have 89db sensitivity, if I am not mistaken Art said on a thread that sensitivity don't mean any on a sub,or it was Brian? , honestly can't remember who commented that, so what is the real deal about the driver sensitivity rating if compared on the same cabinet.
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A single number sensitivity is not very useful unless the voltage applied and test conditions for the chart are specified.
2.83v is one watt into "8 ohms", 2 watts into "4 ohms", 4 watts into "2 ohms", and a DVC like the Dayton Audio MX12-22 could be wired as "1 ohm", 8 watts.
As it is, the specs are 2.83v into "4 ohms", and 89.4dB sensitivity.
The "Usable Frequency Range 23 - 450 Hz", while sensitivity rises from 77dB at 30Hz to 89.4dB at 90 Hz...
2.83v is one watt into "8 ohms", 2 watts into "4 ohms", 4 watts into "2 ohms", and a DVC like the Dayton Audio MX12-22 could be wired as "1 ohm", 8 watts.
As it is, the specs are 2.83v into "4 ohms", and 89.4dB sensitivity.
The "Usable Frequency Range 23 - 450 Hz", while sensitivity rises from 77dB at 30Hz to 89.4dB at 90 Hz...
Driver sensitivity is typically a calculated, not measured, figure. The calculation for it is given in the Loudspeaker Design Cookbook and is based on its parameters. A driver with the same sensitivity and similar Qts (and perhaps Fs) to another driver will likely produce similar results in the same cabinet.
T/S Explained
T/S Equations and how each one affects the others
n0 = (9.7822 * 10-10 * Vas * Fs3) / Qes
The SPL rating is in direct proportion to n0. Important to note is that the efficiency coefficient (n0) is highly dependent to the resonant frequency, because it’s at the power of 3. In conclusion, tweeters and mid-range drivers will be more efficient versus subwoofers.
T/S Equations and how each one affects the others
n0 and SPL rating – Efficiency
no is a percentage, showing how efficient the driver is at converting an electrical signal to an acoustical one. As a result, the bigger the number, the greater the reference sound pressure level.n0 = (9.7822 * 10-10 * Vas * Fs3) / Qes
- n0 above is a ratio, not a percentage. To make it a percentage multiply by 100.
- Vas is in liters.
- Fs in Hz.
The SPL rating is in direct proportion to n0. Important to note is that the efficiency coefficient (n0) is highly dependent to the resonant frequency, because it’s at the power of 3. In conclusion, tweeters and mid-range drivers will be more efficient versus subwoofers.
12RS430---296.00
Lab12---259.00
MX12-22---149.00
12FG100---336.00
What would you choose
Lab12---259.00
MX12-22---149.00
12FG100---336.00
What would you choose
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lol, in an hypothetical scenario, let's say you will make 2,
what drivers you will get
i am saying these cause i got puzzled when read that you can fry a 12TBX100 with 300W of pure sinewaves on a tapped horn but it can take 1500w of music power, so now i don't have an idea on how much power you can safely throw at those drivers in the PAL design 🙁
what drivers you will get
i am saying these cause i got puzzled when read that you can fry a 12TBX100 with 300W of pure sinewaves on a tapped horn but it can take 1500w of music power, so now i don't have an idea on how much power you can safely throw at those drivers in the PAL design 🙁
Really don't know and not going to research them for you, but FWIW, I never considered price per se, only build quality and how close its specs were to my 'ideal' for the app. As such, I only considered prosound for serious installs and RadioShack and similar quality for typical John Q. Public's (relatively) inexpensive systems.
Ok, let me rephrase this, i do not have any intention that you do my homework, i have simmed like a dozen 12" drivers in the PAL12 HR screen.
and from those the ones that get decent freq response are the ones that i listed ( sub 350 USD price)
so my question is if a given driver touch 10mm Xmax at 400 watts , why the manufacturer put on the label that the cabinet can take 1000watts
if with 400 you are at the Xmax limit.
that and the sesitivity rating on the driver, car drivers have 89dB's or less, pro PA drivers have 96 or more dB sensitivity,
does that make a huge difference ?
so using the 96db sensitivity driver make me use 6 times less amp power than the 89dB one
and from those the ones that get decent freq response are the ones that i listed ( sub 350 USD price)
so my question is if a given driver touch 10mm Xmax at 400 watts , why the manufacturer put on the label that the cabinet can take 1000watts
if with 400 you are at the Xmax limit.
that and the sesitivity rating on the driver, car drivers have 89dB's or less, pro PA drivers have 96 or more dB sensitivity,
does that make a huge difference ?
so using the 96db sensitivity driver make me use 6 times less amp power than the 89dB one
Reaching or exceeding Xmax has little to do with what a cabinet's power rating is.
A driver reaching Xmax at "400 watts" will sound louder when given 1000 watts.
The upper sensitivity of a driver does not make a huge difference in the "sub" range below 100Hz.
A one number sensitivity rating will always be highest in the upper range.
Any 12" "pro PA driver" with 96dB 1w/1m sensitivity won't have anywhere near that sensitivity below 100Hz, and won't have enough excursion to have comparable low frequency output to a heavier, less sensitive driver designed for low frequency reproduction.
Got it, so I choose a driver that have a Fs close or lower that the Fb or the cabinet, In this case 35hz for the Pal12
