Best midrange to pair with Beyma TPL-150

[ryzaa]

Originally Posted by angeloitacare

Listened Avantgarde Trio here in Hong Kong, at the official distributors place.
My perception was completely different than when i heard it before. This time, the flaws where right away perceivable. Bad integration of the 3 main channels, no much treble extension, and quite colored.

Hi Angelo,

I have spent some time modelling the Avant Garde Trio Horns.

With respect to the lack of treble extension, I think it may be because of the cancellation from the size driver they use for their highs. If you look at their specs, they list a 1" exit driver, but if you model them as exponential horns, the only way that their dimensions for their high frequency horn can expand to 90 degrees at the tangent is by using a 1.4" exit driver, which I believe has some roll-off exhibited above about 12k, which may be what you were experiencing.

[angeloitacare]

Originally Posted by anubisgrau

i'm a bit scared that beymas will not be able to avoid a ribbon stamp - forensic reproduction devoid of serious dynamic impact of real music - which i dearly hate, if my experience with any ribbon aiming to play under 7-8k so far is relevant. i'm only sensing it needs a driver with very rich tone so some i want to try are vitavox S3 from 450 on, audax PR170M0 from 250 on and fane 8M from 150 on. i will report here on findings..

Gordan

the Beyma has less dynamic contrast than compression drivers. But its still more dynamic than ribbons, sounds fuller, has more " meat ", probably also because it goes lower. That is a tradeoff i am more than happy to accept, to have in the counterpart the tremendous advantages, linearity, homogeneous, very natural and holographic sound. Trying out 8" or 10" direct radiators, i will step into new territory. But i trust the Germans, like Dieter Achenbach, which commercializes a diy kit :

Kits

acording to what i have read on german blogs, the PHL is a perfect match for the Beyma , with very natural and dynamic behavor, and integrating seemlessly.

[angeloitacare]

Originally Posted by ryzaa

Hi Angelo,

I have spent some time modelling the Avant Garde Trio Horns.

With respect to the lack of treble extension, I think it may be because of the cancellation from the size driver they use for their highs. If you look at their specs, they list a 1" exit driver, but if you model them as exponential horns, the only way that their dimensions for their high frequency horn can expand to 90 degrees at the tangent is by using a 1.4" exit driver, which I believe has some roll-off exhibited above about 12k, which may be what you were experiencing.

I have made direct comparisons between a 1" compression drivers , Celestion 1425, and Radian 475, in a small round horn with 18cm diameter, JMLC curve, with Coral H100 tweeter, and the difference was clearly perceivable. 1" ers go out of steam earlyer, probably starting at 12khz or so. The Trio was also my starting point when i made my system. You can avoid making basic mistakes, like not time align the drivers, and not arrange them in a vertical line. That will avoid a important part of the weekness of the AV Trio.
I also didnt like the lower midrange of the Trio so much. Mine at home sounds much more natural......to get the timbre and format of instruments rights is not a easy thing. I am still thinking about what is the reason for such a big difference of performance. Many reasons are possible....

[JoshK]

I heard Avantgarde Duos and I heard almost all the Wilson line up and can't say I've been impressed with either. I imagine setup was a great deal of both of the issues, but I've heard much better pedestrian systems.

To each their own. I think everyone comes to the table with their own desire/goals and agenda. For me, hi-eff brings something that other speakers don't. I am not married to the Beyma's but I wanted to try them as they are quite different than other approaches.

Josh