I have an oddball question take this HIVI 2" dome with a fs of 700hz and a QTS of about 1 rated at 80w RMS 150w peak. Is there any way to calculate it's power rating if used without any crossover ? Should it be safe to use full range with a 10w amp ?
...even with 10 W, 'normal' woofers ( the speakers with double suspensions, cone, etc.) are near their limits in the ( very) bass region, so the answer is....
And, usually power rating is meaningless. It has to be referred to the bandwidth of the device considered, in this case a midrange, but not a normal midrange, a dome midrange, where suspension is performed by the 'butterfly' like other dome tweeters. So 80 W is to be considered in the working BW of the device, i.e. with HP inserted
And, usually power rating is meaningless. It has to be referred to the bandwidth of the device considered, in this case a midrange, but not a normal midrange, a dome midrange, where suspension is performed by the 'butterfly' like other dome tweeters. So 80 W is to be considered in the working BW of the device, i.e. with HP inserted
A driver like this will hit excursion limits very quickly if used full range.
I'm currently using a 2" as a wideband driver.
When I was speculating about what driver (size and model) to go with, I plugged their values for size and X-max into this calculator to guesstimate their low frequency limits.
Piston Excursion calculator
Let's say your 2" driver has 0.5mm Xmax.
This calculator shows it can hit 53dB at 50Hz, 65dB at 100Hz, 77dB at 200Hz, 89dB at 400Hz, etc.
My 2" driver is loaded into a fairly big horn, and I use a 700Hz electrical crossover. If I was more demanding (played my music louder), I'd have to shift to a higher crossover point.
A 2" would only be OK as a fullrange driver if used in the extreme near field - e.g. built into the headrest of a chair.
I'm currently using a 2" as a wideband driver.
When I was speculating about what driver (size and model) to go with, I plugged their values for size and X-max into this calculator to guesstimate their low frequency limits.
Piston Excursion calculator
Let's say your 2" driver has 0.5mm Xmax.
This calculator shows it can hit 53dB at 50Hz, 65dB at 100Hz, 77dB at 200Hz, 89dB at 400Hz, etc.
My 2" driver is loaded into a fairly big horn, and I use a 700Hz electrical crossover. If I was more demanding (played my music louder), I'd have to shift to a higher crossover point.
A 2" would only be OK as a fullrange driver if used in the extreme near field - e.g. built into the headrest of a chair.