TH-18 Flat to 35hz! (Xoc1's design) - Page 124 - diyAudio
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Old 14th February 2013, 08:29 PM   #1231
NEO Dan is offline NEO Dan  United States
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Just to be clear...
Quote:
Originally Posted by NEO Dan
The 15HP1060 is the neo driver the 15HP1030 is based on. It's about 10lbs lighter, but it's going to cost you ~$10 per pound more.
I recommend the 15HP1030 for the money, and with that money I'd built in 18mm ply. The cabinet should have casters, weight should not be an issue...
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Old 15th February 2013, 01:26 PM   #1232
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is 10% weight reduction worth the extra $$
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Old 15th February 2013, 09:22 PM   #1233
NEO Dan is offline NEO Dan  United States
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Quote:
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is 10% weight reduction worth the extra $$
I did not understand what the was for until I re-read my post.
It should have read:
Quote:
Originally Posted by NEO Dan
~The 15HP1060 is about 10lbs lighter, but it's going to cost you ~$10 per pound more.
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Old 13th March 2013, 01:28 AM   #1234
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I'm going to give this a go starting tomorrow. I'm torn between the 18tbx100 and 18tbw100. How much difference realistically can I expect? Anyone know the peak excursion of the TBW? The TBW states 57mm peak.
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Old 13th March 2013, 01:35 AM   #1235
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To better understand your situation:
What amp(s) will you be using to power them? How many are you building?
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Old 13th March 2013, 01:59 AM   #1236
NEO Dan is offline NEO Dan  United States
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Realistically you won't have the ability to push it very far beyond x-max, I had >350v and getting to +-18mm was about the limit for the 18SW115. As long as you have a proper high pass filter you will probably run out of voltage or thermal first.
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Old 13th March 2013, 02:03 AM   #1237
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IPR3000. If it works out, 4 this year. I currently use 6 modified labs.
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Old 13th March 2013, 01:12 PM   #1238
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I would run the 4 ohm versions of the 18TBX100 to get the most from that amplifier. It's rated for 840W per channel at 4 ohms. IIRC, the 18TBX100 moves a little easier in the TH18 compared to the 18TBW and SW100 - which is good in this case.
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Old 13th March 2013, 05:28 PM   #1239
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Quote:
Originally Posted by NEO Dan View Post
Realistically you won't have the ability to push it very far beyond x-max, I had >350v and getting to +-18mm was about the limit for the 18SW115. As long as you have a proper high pass filter you will probably run out of voltage or thermal first.
Dan,

While breaking my BC18SW115-4 I ran them to Xmax (open air) at around 20 Hz with around 40 volts (or less)sine wave.

350 volts x 350 volts =122,500/8ohms=15,312.5 watts, 30,625 watts in to 4 ohms!

What amplifier has that potential, even momentarily?

Art

Last edited by weltersys; 13th March 2013 at 05:35 PM.
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Old 13th March 2013, 08:53 PM   #1240
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