Looks like an excellent small guide that should hold pattern control to mate with a 6" woofer. The narrow size is a nice option for vertically challenging speakers.
Tractix horn. Probably too beamy up-top for my preferences. I'd go for the Denovo EOS-6 personally.
I'm using the STH100 with the Faital HF100 driver and an Eminence Beta 8a, crossed via MiniDSP at 2000 Hz (acoustic crossover point). Attached is a set of response curves from 0 - 90 degrees. No protractor, just turning the enclosure by hand and eye. 1/6 octave smoothing, no gating, this was done in a small room with lots of reflections so less smoothing just shows more hash. EQ was also not optimal at that point, I can do better. Still,I think they mate fairly smoothly.
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Inherent in the CD. It also shows in the spec sheets, though not quite so steeply. That's what you get with the bottom-end driver, Faital's more expensive drivers appear to have better extension at both ends.
Bill
Bill
It might be a tradeoff I'd be willing to makes as the drivers with higher extension also appear to have a much more ragged response. Yours is buttery smooth!.....if that response was to 14khz or so, a wining combo for sure.
Here's maybe a better look at the FR. This was slightly below the center of the horn (centered between the tweet and mid), at roughly 36 in, mic 35" from floor, in room, 1/24 octave smoothing. Still some room to improve the EQ, I know.
I'm sure you have searched, but I believe POOH has used the STH100, as has Ingvar Ahlberg:
Stupid old man with a few good ideas.
I'm sure you have searched, but I believe POOH has used the STH100, as has Ingvar Ahlberg:
Stupid old man with a few good ideas.
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Im actually about to use the sth100 🙂. Just ordered one a week ago. I can't find affordable is waveguides in Europe and a tractrix horn was my second best option. Horizontal dispersion is quite constant.
Why not use the impulse gating to measure the HF? Btw, it's super easy to do miniDSP with REW now - just measure the drivers, EQ to flat well past xover, export driver EQs to miniDSP, add the DSP xover filters, use measured inverse null to time align, apply target curve EQ to input, done.
Hi everyone
I'm planning to buy FaitalPro STH100 waveguides for Beyma CP-380M drivers. Hovewer, here: FaitalPRO STH100 1" 80 x 70 Elliptical Tractrix Horn 2-Bolt i found some disturbing information, namely:
"This Tractrix horn does what a tractrix horn is supposed to do: fairly even off axis response: horizontally and vertically; and no noticeable horn honk; high quality cast aluminum construction... all the good stuff. Now comes the price of admission: get ready to compensate for the huge peak around 4 kHz. I had to apply a -12 dB bell notch filter, q = 2, to make the response flat. This is with a crossover point of 1.8 kHz. Obviously it is not something easily done with passive crossover; but in a bi-amped setup with DSP, you have a pleasant sounding horn that has a pretty even off-axis response."
I don't see any problems on SPL curves posted in this threat. Can anyone explain how it actually is?
Best regards
Damian
I'm planning to buy FaitalPro STH100 waveguides for Beyma CP-380M drivers. Hovewer, here: FaitalPRO STH100 1" 80 x 70 Elliptical Tractrix Horn 2-Bolt i found some disturbing information, namely:
"This Tractrix horn does what a tractrix horn is supposed to do: fairly even off axis response: horizontally and vertically; and no noticeable horn honk; high quality cast aluminum construction... all the good stuff. Now comes the price of admission: get ready to compensate for the huge peak around 4 kHz. I had to apply a -12 dB bell notch filter, q = 2, to make the response flat. This is with a crossover point of 1.8 kHz. Obviously it is not something easily done with passive crossover; but in a bi-amped setup with DSP, you have a pleasant sounding horn that has a pretty even off-axis response."
I don't see any problems on SPL curves posted in this threat. Can anyone explain how it actually is?
Best regards
Damian
Hi Mayhem13,
A few months back I purchased several waveguides for use in a 2.1 way loudspeaker system, one of which was the Faital Pro STH100 waveguide.
Attached is my FR measurements and horizontal directivity pattern of the STH100 when coupled with a B&C DE250 CD.
The STH100 had by far the flattest un-equalized FR of all the waveguides tested and as you can see from the directivity pattern, it has a reasonably flat response of about 56 degrees (included angle) over the frequency range of 5KHz to over 15KHz. This opens out to about 90 degrees at 2KHz.
The FR data used 1/24 octave smoothing and the directivity pattern used 1/12 octave smoothing. All measurements were made with the microphone positioned on axis at 1m from the waveguide and gated to provide a quasi-anechoic response.
Peter
A few months back I purchased several waveguides for use in a 2.1 way loudspeaker system, one of which was the Faital Pro STH100 waveguide.
Attached is my FR measurements and horizontal directivity pattern of the STH100 when coupled with a B&C DE250 CD.
The STH100 had by far the flattest un-equalized FR of all the waveguides tested and as you can see from the directivity pattern, it has a reasonably flat response of about 56 degrees (included angle) over the frequency range of 5KHz to over 15KHz. This opens out to about 90 degrees at 2KHz.
The FR data used 1/24 octave smoothing and the directivity pattern used 1/12 octave smoothing. All measurements were made with the microphone positioned on axis at 1m from the waveguide and gated to provide a quasi-anechoic response.
Peter
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I use the ST100 with the Faital pro HF10AK in a HE 3 way and its cleaner than any dome including Scan Be tweeters. I am really impressed with the combination. You wont be sorry!
I use the 15PR400 for bass and BMS 2" mid. The combination is phenomenal
I use the 15PR400 for bass and BMS 2" mid. The combination is phenomenal
@Audio Elite - thanks. Do You have any SPL measurments of this combination? I also thought about HF10AK, but finally decided to go with Beyma CP-380M, becouse i found the test of Faital Pro HF108R, for which the SPL curve was quite different than the one declairde by the manufacturer:
1) Test Bench: Faital Pro HF108R Compression Driver | audioXpress
2) http://www.faitalpro.com/en/products/HF_Drivers/product_details/datasheet.php?id=502010175
I had concerns that it could be the case with HF10AK too, and since i care about the highest octave, I stayed with first option.
1) Test Bench: Faital Pro HF108R Compression Driver | audioXpress
2) http://www.faitalpro.com/en/products/HF_Drivers/product_details/datasheet.php?id=502010175
I had concerns that it could be the case with HF10AK too, and since i care about the highest octave, I stayed with first option.
No SPL measurements to publish. The 10AK is really sweet and airy, you would have been very happy.
I have had people say the speakers sound better than 25-30K speakers and I suppose that says something.
I have had people say the speakers sound better than 25-30K speakers and I suppose that says something.
I'm using CP380M with P Audio PH170 wave guide.
Tested it with STH100 and it was easier to adjust crossover with PH170.
That driver are very nice to listen to.
Figge
Tested it with STH100 and it was easier to adjust crossover with PH170.
That driver are very nice to listen to.
Figge
Vance Dickason's frequency response of the HF108 doesn't look that much different from Faital's own measurements. I.e. nothing that couldn't be corrected. They look actually even better where it really matters. From the footnotes of the datasheet I guess that a different waveguide must have been used by Faital themselves than Vance (he used the LTH102 BTW). The production consistency looks excellent (important for stereo reproduction). The waterfall is very clean for a driver/horn combo.
I haven't found any measurement of the same driver on the STH100 unfortunately. But here are measurements of two other Faital drivers on the STH100:
http://www.faitalpro.com/press_&_media/news_archive/article/files/VoiceCoil-Jul_13.pdf
Regards
Charles
P.S: And yes the HF10AK on a 18S XT1086 is very nice !
I haven't found any measurement of the same driver on the STH100 unfortunately. But here are measurements of two other Faital drivers on the STH100:
http://www.faitalpro.com/press_&_media/news_archive/article/files/VoiceCoil-Jul_13.pdf
Regards
Charles
P.S: And yes the HF10AK on a 18S XT1086 is very nice !
I did find the Pictures after a while.
STH100 has a longer throat so it's harder to make a passive crossover.
Because of CO diffrences I cant really say wich is the better combination, but STH100 has more pronounced highs, and FH170 maybe a little softer.
Regarding CP380, it's a explendid driver.
I use this combination in my backloaded horns with two 8G40 drivers, and have used STH100 in several cabinets, often with CP380 or CD10FE.
Figge
STH100 has a longer throat so it's harder to make a passive crossover.
Because of CO diffrences I cant really say wich is the better combination, but STH100 has more pronounced highs, and FH170 maybe a little softer.
Regarding CP380, it's a explendid driver.
I use this combination in my backloaded horns with two 8G40 drivers, and have used STH100 in several cabinets, often with CP380 or CD10FE.
Figge
