It really looks live a clever design
Regards,
Vincula
Hi Vincula,
thanks for the flowers!
OK, let´s start with the TSP and impedance sweep, first and second attached document. Both units are lightly burned in, for sure further changes will occur with more burn-in.
Both units are not too far off from each other, and are also not too far off from manufacturer´s data, which is a good sign as well.
Interesting is the clear (albeight slightly different) resonance at 9,5 kHz, this is the whizzer. All else seems relatively well controlled, we shall see later with frequency sweeps, just have to remount the drivers.
The third document shows the impact of the different data to the AJ-Horn simulations,
black=manufacturer
green=no. 1
red=no. 2
also results are quite OK either.
All the best
Mattes
Dear all,
slowly it comes to my mind that all these details about the Fast 5 are totally of-topic, and I apologize to Fullrangeman for highjacking!
I will post all further results in the Fast 5 thread
FAST_5" speaker
All the best
Mattes
slowly it comes to my mind that all these details about the Fast 5 are totally of-topic, and I apologize to Fullrangeman for highjacking!
I will post all further results in the Fast 5 thread
FAST_5" speaker
All the best
Mattes
I'm sure it was cheaper to travel with the drivers than shipping them! I looked at getting these drivers to my home, but they only have one shipping option on Aliexpress, and it's an extra $265. Yikes!
Kinda strange since they don't have far to travel.
Getting them from the Xizi website is $65. Much better.
But, after seeing your measurements, I think I'll pass and put my efforts in my existing pair of TB, and my upcoming SBAcoustics.
About the Lii Audio 10 inch drivers.
recieved them last week.
Made new center boards for my PAP trio 15 neo set.
Re-voicing my Leonidas XO took about 5 minutes
I fell in love with this driver almost instantly !!
Integration is very good in this setup!!
If you have the oppertunity : listen to them in a decent config.
Too early now to say more. So maybe later.
Some pictures of the set.
sinc. Leon
recieved them last week.
Made new center boards for my PAP trio 15 neo set.
Re-voicing my Leonidas XO took about 5 minutes
I fell in love with this driver almost instantly !!
Integration is very good in this setup!!
If you have the oppertunity : listen to them in a decent config.
Too early now to say more. So maybe later.
Some pictures of the set.
sinc. Leon
Attachments
Then you will not mind if I take your findings with a grain of salt since there's a good chance you and I don't like the same things.
But, in 2019, it's a little strange to not believe in measurements....
This is DIYAudio, so, if you just come here and say "Oh my God, these are the best drivers!" and don't feel like sharing the data to prove your point with others, then what's the point?
I have plenty of that on FaceBook... don't need it here.
@perceval, the problem is that data doesn't tell you how a driver sounds. You can have a driver that measures perfectly but sounds like ****, and a driver that measures not perfectly but sounds brilliant. As Leonidas is de developer of the Leonidas XO for Pure Audio Project, believe me, he knows a thing or two about drivers. You don't have to agree with me.
If there is something that I have learned in life, than it would be that there is more to life than absolute values. Every driver is different, every room is different, everybodys ears are different, everbody listens differently. This makes every review biased before it is even written. Thats why Leon is saying that if you have a change, go and listen to the driver!
I can ask the developer if they have sold some drivers to Taiwan if you like?
If there is something that I have learned in life, than it would be that there is more to life than absolute values. Every driver is different, every room is different, everybodys ears are different, everbody listens differently. This makes every review biased before it is even written. Thats why Leon is saying that if you have a change, go and listen to the driver!
I can ask the developer if they have sold some drivers to Taiwan if you like?
Sure, when people focus on the frequency response only.
But, when combined with impulse and step response, if all three look good, I'll bet you that it will sound great.
Too few people, or company, look at the impulse and step response when designing their speakers.
I liked the statement from Dunlavy when he said he designs a XO looking at the step response first, then worry about the FR.
As you said, every driver, room, ears are different... but even Leon had to use a mic to come up with his XO.
But, when combined with impulse and step response, if all three look good, I'll bet you that it will sound great.
Too few people, or company, look at the impulse and step response when designing their speakers.
I liked the statement from Dunlavy when he said he designs a XO looking at the step response first, then worry about the FR.
As you said, every driver, room, ears are different... but even Leon had to use a mic to come up with his XO.
Last week been listening to the Lii Audio 10 inch , as a mid/high driver in OB.
You can do without tweeter , which is great for a 10 inch.
THis morning I added a horizontal tweeter with diffuser sphere.
Integration is VERY easy
Stereo image improved by numbers
Also the sound image was deeper.
I only post for those who like my findings.
If they are not usefull for your way of thinking : please skip my posts !!
sinc. Leon
You can do without tweeter , which is great for a 10 inch.
THis morning I added a horizontal tweeter with diffuser sphere.
Integration is VERY easy
Stereo image improved by numbers
Also the sound image was deeper.
I only post for those who like my findings.
If they are not usefull for your way of thinking : please skip my posts !!
sinc. Leon
Attachments
You may find this thread interesting Transmission line Omni speakers? Duevel Planets clone with transmission line? particularly the posts by DonVK
There are more than that to determine loudspeaker performance and sound signature. E.g. cone profile, VC former material, mechanical resistance...
Very often i hear ultra flat response loudspeaker but sound signature is ultra boring... Even on a SET Amp.
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