Bohlender Graebener RD50 transducers advice

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#42
May i ask to be sure it is at least the RD-50 type..... i had hoped to find the RD-75,, but that seems all but unobtainable,, for now.... Also i hope you can give me a couple of days to get me a bank loan,,, not that it will be a problem,, i have a whole house for security to the bank so i recon it wont be to many days before i have the money ready for You KMJ....... yeah i see the west coast,, i live on the very south-west coast of norway a couple tens of kilometers south of stavanger,,,, kvernaland, klepp.......... Anyways looking forward to hear more
from You KMJ 🙂
 
#43
SweeT GLaSS CFP MoS said:
May i ask to be sure it is at least the RD-50 type..... i had hoped to find the RD-75,, but that seems all but unobtainable,, for now.... Also i hope you can give me a couple of days to get me a bank loan,,, not that it will be a problem,, i have a whole house for security to the bank so i recon it wont be to many days before i have the money ready for You KMJ....... yeah i see the west coast,, i live on the very south-west coast of norway a couple tens of kilometers south of stavanger,,,, kvernaland, klepp.......... Anyways looking forward to hear more
from You KMJ 🙂
Click to expand...

I will take some photos and measurements and send them to you for verification.
I didn't plan on selling them so they aren't going anywhere.
 
#46
drjlo said:
I'll probably rebuild the cabinets sometime in the future, if nothing else because they are a bit wobbly.

Maybe you can make the top and bottom separable? For example, I have multiple stand-alone top units that will work perfectly on top of that box at 1kHz crossover point, e.g. Heil AMT, Beyer TPL150H AMT, various 1.4" compression driver/horns. Even my 1" Radian compression drivers sounds great at 1kHz if horn is larger.
Click to expand...
Hi!
It has been a while and I am thinking of putting a saw to the speakers and separating to two parts and placing the planars next to the 30L box.

And a funny thing that you mentioned Heil AMT.
I also traded a pair of Troels Gravesens C17 for a pair of speakers I had never heard of or even listened to.
It turned out to be a pair of the ESS ML-8 sporting a pair of Heil AMT-3.
 
#47
I believe Heil AMT-3 has been discontinued. I sure could use a pair about now because I am looking for a good, sensitive dipole AMT to add on top of my full-range Zenith 12" dipole, which has about same sensitivity as AMT-3! The shorter AMT-3 would have better vertical dispersion, and the Great Heil AMT is just too large and heavy for this purpose.
 
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#48
These are the ones.

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#51
Should be ok if volume level is not crazy high. ESS crosses the larger Heil at 800 Hz for their AMT-1D Revival speakers, and some people do complain about perceived deficiency around that area. I prefer the sound quality when I cross the AMT double or triple-stack at 1kHz..
 
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