That image is taken from this article on a interesting 2 way for which the 15FH500 and HiVi RT2H-A neodymium are used (use Google Translate).
I guess, the Faital would perform even better if you'd double up the cabinet depth.
I guess, the Faital would perform even better if you'd double up the cabinet depth.
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Sensitivity is not that low.
How do you predict required power from the specs outside sens db/3V?
Im looking for a similar 2-way 15in/12in but with high sensitivity for a very low power amp. Like single ended tubes.
Nice one 
15TBX100 versus 15PH500.
This is an example where electrical and mechanical parameters (without Mms) are not clearly indicative.
However, given the electrical parameters, all you have to do is look at Mms to know why the 15FH500 is a much better driver for a 2-way that can be powered by (some) tube amplifiers: 188.6 (TBX100) vs. 103.4 (FH500).
The fact that the FH500 is available in 16 Ohms is a nice bonus.
15TBX100 versus 15PH500.
This is an example where electrical and mechanical parameters (without Mms) are not clearly indicative.
However, given the electrical parameters, all you have to do is look at Mms to know why the 15FH500 is a much better driver for a 2-way that can be powered by (some) tube amplifiers: 188.6 (TBX100) vs. 103.4 (FH500).
The fact that the FH500 is available in 16 Ohms is a nice bonus.
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Imho a "mechanical parameter" don't say anything about of what mechanically occur one the parts assembly.
Nice one
15TBX100 versus 15PH500.
This is an example where electrical and mechanical parameters (without Mms) are not clearly indicative.
However, considering the electrical parameters, all you have to do is look at Mms to know why the 15FH500 is a much better driver for a 2-way that can be powered by tube amplifiers: 188.6 (TBX100) vs. 103.4 (FH500).
The fact that the FH500 is available in 16 Ohms is a nice bonus.
Yes, it's like a BD15 that trades SQ for Xmax. I don't know how much SQ (it's substantial on the Xmax front!) but certainly the BD15 would be expected to perform better on distortion with the underhung motor and vastly lower inductance (0.6mH on a 16 ohm driver IIRC)
You've got it Badman.
More or less the same applies to the French customized B&C that jzagaja posted.
However, the FH500 fits Camplo's needs better than both BD15 and Cyrille M38ND76P-2.
@silversprout, you are basically right, but as the observant reader will have noticed,
with this comparison I subtly refer to an earlier comment.
More or less the same applies to the French customized B&C that jzagaja posted.
However, the FH500 fits Camplo's needs better than both BD15 and Cyrille M38ND76P-2.
@silversprout, you are basically right, but as the observant reader will have noticed,
with this comparison I subtly refer to an earlier comment.
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And finally, another midwoofer. This one is cheap, but very good. It doesn't deliver quite same low end as the 15PR400 though:
Is that a Celestion? Celestion got a lot of really good sounding drivers, compression drivers too.
That image is taken from this article on a interesting 2 way for which the 15FH500 and HiVi RT2H-A neodymium are used (use Google Translate).
I guess, the Faital would perform even better if you'd double up the cabinet depth.
I don't think so.
There are remarkable differences between the 15FH500 in 8Ohm vs 16Ohm.
8Ohm need smaller enclosure volumes according to t/s parameter, here seen with acuhorn.
vs 15FH500 with 16 Ohm, different t/s parameters, starting in boxes of 250 liters extremely deep.
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The drivers are identical. They had to change the name (on all drivers) because of the 'TruVox' being a registered trademark.
Both don't fit the datasheet. The 'new' TF 1525 does not have +/-4mm Xmax either, it's +/-2,5mm. The difference to the 2,4 is most likely different rounding at the conversion from imperial to metric. Where did you get these from? I can only assume you either mixed them up with a different model or these were self measured by someone.
A return to Acoustic Suspension pioneered by AR might be the answer needed.
AR-7 and AR-17 Response Curves, etc. - Acoustic Research - The Classic Speaker Pages Discussion Forums
The parameters are kept consistently as possible. However, the temperature, the air pressure, air moisture are factors that got a lot of influence on the measurement. If they change production details (parameters) of that magnitude, they change the model name/number. But they didn't scrap 'truvox' because of a new model, they scratched it from everything, from the pages, the labels, the boxes, the commercials.
Maybe there was a different Truvox 1525, but I can tell the 1225 did not change with the name change and the 0815, 0815MR, 1020 neither, I still have one 'truvox' 0815 here and 4 non-truvox, they are absolutely identical, except for the labels. The parameters are very close too, which is quite a feat since they are over 10 years apart in production. Your parameters look more like the TF1525e. I'm really curious to find the differences, please post your datasheets.