My open baffle dipole with Beyma TPL-150 - Page 125 - diyAudio
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Old 31st December 2012, 08:19 AM   #1241
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Quote:
Originally Posted by FE3T View Post
I have a pair of questions about the TPL150.
If its used with a 12" down to 1000-1200hz and a sensitivity below 95db/1w are needed. are there any reason to use the H version?
Are the Aluminium version of the horn still aviable or are the plastic horn the only option?
There are three main reasons to use the H version
1. More LF extension
2. More controlled diretivity
3. Better efficiency

See the measurement below comparing the 150 with the 150H, both measured with no baffle. With a baffle, both of them will get more LF extension, but anyway you see the relative difference.
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File Type: gif TPL-3.gif (12.1 KB, 1238 views)
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Old 31st December 2012, 08:33 AM   #1242
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Quote:
Originally Posted by FE3T View Post
Are the Aluminium version of the horn still aviable or are the plastic horn the only option?
There is as far as I know only one TPL150H version, and the horn is aluminum. You can't buy the horn as a separate product either.
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Old 1st January 2013, 10:41 PM   #1243
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StigErik,

In your audio journeys have you had the chance to listen to the bigger Apogees or Maggies, and if so how did they compare to your RD75 extravaganza?
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Old 2nd January 2013, 07:32 AM   #1244
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Recently I've heard Maggie 1.7, which was nice but nowhere near the RD-75.
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Old 7th January 2013, 01:46 AM   #1245
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Quote:
Originally Posted by StigErik View Post
Recently I've heard Maggie 1.7, which was nice but nowhere near the RD-75.
That is quite a statement! I had wondered about the "fullness" of the sound on the RD75... It appears to be quite an impressive driver. I wish I could come hear your system setup. It appears to be the result of some very extensive research and testing... The last part hopefully more fun than frustrating.

Beauty setup Erik!
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Old 24th January 2013, 09:38 PM   #1246
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Hey Erik, just read through the whole thread and am quite excited to try an RD75 setup like yours. I have GR Research Super-Vs but am interested in replacing the mids/top end with the RD75 and keeping the (stunning) dipole bass.

Question: have you listened to the Neo10 yet? How about the Neo3 as a tweeter? And/or the Raal ribbon tweeters?

I haven't been able to find any direct comparison between the Neo10+Neo3 or Neo10+Raal and the RD75. Just wondering if you had any advice here.

(Your RD75 setup is extremely attractive for ease of construction and simplicity. After spending a solid month building the Super-Vs from scratch, I'm not exactly jumping up and down to do another complex build!)
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Old 25th January 2013, 08:40 AM   #1247
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I have no experience with Neo10, but I know the Neo3 very well. Its nice, but nowhere near the RD75 in my opinion. Don't know the Raal either.

Fact is that I am so satisfied with the RD75 that I have no urge to try other things....
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Old 25th January 2013, 11:22 AM   #1248
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Based on your drive to improve and the length of this thread, that's a pretty strong recommendation! I'll give it a shot when I'm back in the states. Thanks for sharing your journey with all this!
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Old 23rd April 2013, 04:49 AM   #1249
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I wonder what the effect of using the RD75 in horizontal configuration would yield. Let's say you have them at ear level, left and right channels meeting in the center, creating a long continuous horizontal "bar"

opinions on this configuration?

Herman
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Old 23rd April 2013, 07:15 AM   #1250
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Default Line of 3" fullrange

Hi StigErik

What if the line of 3" are curved so they all meet up at the listening position at the same time, would that make a difference?

best regards
uwe
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