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AMT Tweeter Question (Read 678 times)
Doug
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Posts: 302
AMT Tweeter Question
11/09/24 at 04:27:40  
Is the AMT tweeter on the new ZROB speaker the Dayton Audio AMTPRO-4?
I'm thinking about flipping over my Lii Song ZF15Ls to the magic 38 degree angle and attaching a pair of AMT tweeters.
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Jay’s CD2T-Mk3
Denafrips Pontus II
ZROCK2 25th Mods
CSP3 25th & Custom Mods
Speakers:
Lii Song ZF15L
PAP Quintet w/Vox 1.6 or Horn1
Amplifiers:
LFD NCSE, First Watt J2, Cary 300SEI

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Steve Deckert
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If the 1st watt
sucks why continue?

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Re: AMT Tweeter Question
Reply #1 - 11/15/24 at 01:26:10  
Hi Doug,

Yes, that is the tweeter used.  A 5.6uF cap hooked to the negative lead.  15 inch driver full range.

Would love to hear your impressions!

Steve
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Doug
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Posts: 302
Re: AMT Tweeter Question
Reply #2 - 11/15/24 at 21:11:20  
Thank you, Steve!

Much appreciated!
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Jay’s CD2T-Mk3
Denafrips Pontus II
ZROCK2 25th Mods
CSP3 25th & Custom Mods
Speakers:
Lii Song ZF15L
PAP Quintet w/Vox 1.6 or Horn1
Amplifiers:
LFD NCSE, First Watt J2, Cary 300SEI

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Bottlehead
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Posts: 569
Re: AMT Tweeter Question
Reply #3 - 11/18/24 at 03:02:28  
I’m hoping to make a pair of ZROBs at some point, so I looked up those caps, and WOW, those are honkers! Spendy, too, if you use something good like Miflex. But I guess if you’re gonna do it, do it right.

Randy
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Donnie
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Re: AMT Tweeter Question
Reply #4 - 11/18/24 at 03:33:19  
Make sure that you hook up the tweeter backwards, positive lead to the negative hook up.

For whatever reason hooking them up backwards makes them sound better.

Probably something about phase angle. Way over my pay grade.
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Owner of the infamous RED TORII and Dan the Redheaded Amp
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Bottlehead
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Posts: 569
Re: AMT Tweeter Question
Reply #5 - 11/19/24 at 06:22:06  
So Donnie, are you saying to hook the tweeter up 180 degrees out from the main driver? With the cap following the lead from the negative pole of the main driver, which would then be on the positive pole of the tweeter? I kinda feel like Alice going thru the looking glass.

Randy
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