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Beyma TPL vs other AMT's
Beyma TPL vs other AMT's
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Old 22nd May 2016, 11:24 PM   #1
frangus is offline frangus  Australia
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Default Beyma TPL vs other AMT's

I'm seeking some listening comparisons between the Beyma TPL and others AMT's particularly the much cheaper Dayton pro model and Heil etc

Let's assume a steep crossover at 1800hz. Thanks
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Old 23rd May 2016, 02:00 AM   #2
_henry_ is offline _henry_  Australia
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i have just finished a project with Beyma TPL150-H, i think the vertical dispersion is disappointing and horizontal dispersion is not up there with the best too. However, it is a big tall AMT so something got to give with that 99db sensitivity....
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Old 23rd May 2016, 02:08 AM   #3
frangus is offline frangus  Australia
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Originally Posted by _henry_ View Post
i have just finished a project with Beyma TPL150-H, i think the vertical dispersion is disappointing and horizontal dispersion is not up there with the best too. However, it is a big tall AMT so something got to give with that 99db sensitivity....
Thanks Henry. What in particular did you find problematic about the horizontal disproportion?

Directivity aside, how did you like the sound compared to yourr horns? Perhaps it would work well with a small tweeter on top?
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Old 23rd May 2016, 04:04 AM   #4
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Quote:
Originally Posted by _henry_ View Post
i have just finished a project with Beyma TPL150-H, i think the vertical dispersion is disappointing and horizontal dispersion is not up there with the best too. However, it is a big tall AMT so something got to give with that 99db sensitivity....
I can second that. TPL-150H gets narrow easily but it adds a huge amount of spaciousness to overall sound. you may consider Aurum Cantus G1 Ribbon as well

Last edited by dave123; 23rd May 2016 at 04:13 AM. Reason: typo
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Old 23rd May 2016, 04:30 AM   #5
frangus is offline frangus  Australia
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Originally Posted by dave123 View Post
I can second that. TPL-150H gets narrow easily but it adds a huge amount of spaciousness to overall sound. you may consider Aurum Cantus G1 Ribbon as well
Are you using dipole? Have you tried monopole with enlarged rear chamber?

I think the Aurum Cantus AST2560 smaller format AMT would be a perfect match.
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Old 23rd May 2016, 05:38 AM   #6
_henry_ is offline _henry_  Australia
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this is the 2way part of Beyma 12P80ND v2 and TPL150H.

As this is a tall speakers, the reference axis is at 1m height (which is between tweeter and mid bass).

the response is 10cm above - reference axis - 10cm below @1m.
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Old 23rd May 2016, 12:11 PM   #7
frangus is offline frangus  Australia
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Interested to hear your thoughts on the Beyma midwoofer too. Every man and his dog is using it these days. Is it that good or just FOTM? Price is crazy. Faital pro 12PR300 looks just as suitable for far better price!
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Old 23rd May 2016, 12:53 PM   #8
hollowboy is offline hollowboy  Australia
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I got the Daytons but only had a few days to try them before going overseas. Initial impression is good. Benign: no need for eq, notch filters or whatevs. May take a while to get perfectly dialed in. They measure flat at the Mic position (about 1.5m) but sound a little hot (silbilant) at the listening position (3 or 4m).

Could be due to my setup / ears / preferences, or could be due to the length of diaphragm meaning less spl fall with distance than a point tweeter.

Note: they have similar power handling to a 1" compression driver, but lower efficiency. If you want to crank your system obscenely loud, they may be the weak link.
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Old 23rd May 2016, 01:12 PM   #9
frangus is offline frangus  Australia
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Originally Posted by hollowboy View Post
I got the Daytons but only had a few days to try them before going overseas. Initial impression is good. Benign: no need for eq, notch filters or whatevs. May take a while to get perfectly dialed in. They measure flat at the Mic position (about 1.5m) but sound a little hot (silbilant) at the listening position (3 or 4m).

Could be due to my setup / ears / preferences, or could be due to the length of diaphragm meaning less spl fall with distance than a point tweeter.

Note: they have similar power handling to a 1" compression driver, but lower efficiency. If you want to crank your system obscenely loud, they may be the weak link.
Always one step ahead of me!

Don't like the sound of sibilance on a flat measuring tweeter...hopefully you can sort it out

Ps how's the Melbourne weather? I'm going for a conference there next week
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Old 23rd May 2016, 01:27 PM   #10
hollowboy is offline hollowboy  Australia
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I'm being a bit Special, in that I'm using them coaxially (in the mouth of a mid horn) and don't yet have the frames treated (felted) so it could actually be mid reflections, wrong amount of delay, anything.

The basic sound takes about two minutes to get right, so they seem like pretty good units, easy to work with. But in my current setup, the treble does draw too much attention on some kinds of music.
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