That Faital Pro looks great. Your wooden struts may be causing some cancellation as they are parallel bars or edges. 4 point wire suspension can work too.
That Faital Pro looks great. Your wooden struts may be causing some cancellation as they are parallel bars or edges. 4 point wire suspension can work too.
You are right, it is also just a test because I go like it is original meant from a king named X, a wideband trynergy, but with these days it is just some little experimentations.
I go make the tangerine tomorrow, because how wider it go the better when use it with a extra tweeter, who can be smaller, maybe even when try to use one with a small magnet, the back has to be pointy.
I go use wire if i do go the new way, but the midbass is still a problem with a lower efficienty, so when do things for nothing is not my goal, a lower sensityvy because of the bass/mid will give a box with a extreme clean sound because the most critical is the horn itself with his very low distortion.
regards
You need to set the Trynergy on top of a bass horn or in mouth of one. Recall my fondness of the University Classic with an 18in pro woofer? 108dB.
Run Uni Classic 50Hz (98dB) but 108dB by 70Hz. Up to 400Hz xo.
Run Uni Classic 50Hz (98dB) but 108dB by 70Hz. Up to 400Hz xo.
You need to set the Trynergy on top of a bass horn or in mouth of one. Recall my fondness of the University Classic with an 18in pro woofer? 108dB.
Run Uni Classic 50Hz (98dB) but 108dB by 70Hz. Up to 400Hz xo.
You now, horns eat space? I can make them so big I can live in it? like a kitchen in the compression chamber😀
We need compromises, that makes it such a nice course.
I listened to some albums that sounded bad until now, for example Lee Clayton - Naked child. Previous system or my cheap Panasonic or Sony headphones can not reproduce correctly the sound, it's full of breakups. I thought that something was wrong with the recording.
Listening to this 'coaxial' horn+tweeter is just another story. Very detailed sound, no harshness at all. All very liquid..
Listening to this 'coaxial' horn+tweeter is just another story. Very detailed sound, no harshness at all. All very liquid..
Maybe a way could be to use just some wood guides like in some Iwata horn or Tad horns (to create virtual cells like the big multicells horns) ?
A simplier way to putt a non invasive tweeter in a horn while staying with a 2" driver at the apex could be a K-horn pipe tweeter : just a tube and I assume the phase beginns as well at the apex of this tube that coul be outside of the main horn if the tube is slighty bended (to go trough the top wall e.g. to allow to load the pipe with a tweeter a 3/4" size from ScanSpeak classic line...
(PS : but for me, I am on the camp of the BBC curve and even more than -6 DB id good for me : casual listening and better tonal balance on acoustical instruments... I surmise also to not have my 15 years old ears anymore ! 10F cone driver should be good enough for me ! Maybe an aêx at the size of the cone would help ? 6cm apex instead 5cm (2") ? )
I did read about it thanks, I presume that the pipe go not on the apex but further on, where the tweeter voicecoil do are in line with the two inch.
I do not read how efficient this pipe tweeters are but see on some (very nice) pictures that it is inpemented on a tractrix.
This is idea after I have test the tangerine.
I listened to some albums that sounded bad until now, for example Lee Clayton - Naked child. Previous system or my cheap Panasonic or Sony headphones can not reproduce correctly the sound, it's full of breakups. I thought that something was wrong with the recording.
Listening to this 'coaxial' horn+tweeter is just another story. Very detailed sound, no harshness at all. All very liquid..
I had same experience. Some CDs which I thought were just unlistenable - now sound great - they were minimally processed early 1950's Jazz.
I haven't read this whole thread yet, so my apologies if this has been asked/answered....
Is there any consensus on optimal placement (distance from throat) of the bass drivers, assuming dsp with time correction? Thanks!
Is there any consensus on optimal placement (distance from throat) of the bass drivers, assuming dsp with time correction? Thanks!
It's pretty forgiving here but make it about 2/3rds to 3/4 from throat measured axialy at centerline. Avoid going too deep into narrow tractrix channel region where pressure of the tweeter is still high.
Or, you could take advantage of that deep Tractrix bend. Attach a straight board across the arc with glue, put another at the bottom, fill with sand.
Or expanding urethane foam, if you want to keep the weight down. (Won't be perfect, but should still dampen handsomely)
Lovely work, guys. All of it.
Here is the measurement of a Visaton FRS8M in a 220hz Fc tractrix horn (throat area 25cm2). I am using a Panasonic capsule as microphone, so no calibration.
Maybe something is wrong with measurement.. those phase wraps look bad. I will do more Holm reading..
Maybe something is wrong with measurement.. those phase wraps look bad. I will do more Holm reading..
Attachments
At lower frequencies phase wrap is normal as it is caused by reflections. It may be reflection of horn wall - a secondary sound ray.
Put mic about 0.5m from mouth plane and set IR gate to 4ms after. See how phase improves.
Put mic about 0.5m from mouth plane and set IR gate to 4ms after. See how phase improves.
Here is the measurement of a Visaton FRS8M in a 220hz Fc tractrix horn (throat area 25cm2). I am using a Panasonic capsule as microphone, so no calibration.
Maybe something is wrong with measurement.. those phase wraps look bad. I will do more Holm reading..
Did you high pass it?
Apply the gate and my bet is the phase wrap goes away. You can only get linear phase measurments in far field with either an anechoic chamber or use near field and gate.
I have tryed to post a video of the horn with music of Elvis Presley, however it was already blocked before it was uploaded.
it is a shame that such old music is blocked while patents do end in 25 years.
correction, have put in complain and it is free now, for here I mean, do not now in usa.
https://www.youtube.com/watch?v=A0-TrKv8QR4&feature=youtu.be
it is a shame that such old music is blocked while patents do end in 25 years.
correction, have put in complain and it is free now, for here I mean, do not now in usa.
https://www.youtube.com/watch?v=A0-TrKv8QR4&feature=youtu.be
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I have tryed to post a video of the horn with music of Elvis Presley, however it was already blocked before it was uploaded.
it is a shame that such old music is blocked while patents do end in 25 years.
correction, have put in complain and it is free now, for here I mean, do not now in usa.
https://www.youtube.com/watch?v=A0-TrKv8QR4&feature=youtu.be
Works for me - sounds great Kees! Nice work - looks like the K tube tweeter was the key. Nice sound.

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