Would like to learn more about the ESS AMT tweeters

tf1216 · 5th April 2006, 08:08 PM

Hey guys,

I have recently stumbled across these tweeters and would like to know why there is so many different models. For example, I saw AMT - 1A, 1B, 1C, 1D and so on.

How old are these guys and are they as great as I read?

Thank you!!!!

tf1216 · 6th April 2006, 04:17 AM

Ok, I think I figured out the answer to my question. Thanks anyway!

: Þ

JohnL · 6th April 2006, 01:52 PM

Hey, what would you like to know about the different models?

They started with the AMT1, the 1a, 1b, 1c, and 1d (and 2) were all subsequently newer models. They made minor modifications to the crossovers and woofers (they never seemed to get the woofers right) They also made AMT1 towers and AMT1 bookshelves, bigger and smaller respectively. The AMT3 was also known as the Rock Monitor and was a big 3 way. The AMT4 used a smaller version of the AMT tweeter along with a smaller woofer. The AMT5 was a bookshelf that didn't use the dipole tweeter, but a monopole AMT. The AMT6 was a big prosound job with an array of 4 tweeters at the top and 2 - 12's. There was also an line they called Concept that used a different model of AMT tweeter. There were some other models, but these are the most popular.

When I first bought a 1B from a friend, I thought it had a very special sound to it. The AMT sound is something I like very much. Unfortunately it doesn't blend well with a 12" woofer (especially 1970's vintage). I've done a couple of designs that match them up with more modern 8" woofers that sound much better, IMHO. I'm still working on the perfect combo, but I'm happy with the direction it's going.

John

tf1216 · 6th April 2006, 02:17 PM

Thank you for the reply John!

You told me everything I wanted to know.

Do you mind if I ask a few more questions?

I am new to the DIY world and I see a lot of talk about different drivers being superior to one another.

I suppose it depends on the person how they want to define 'superior' but do you feel these tweeters are that much better than a great dome or a ribbon?

Also, I see many people place these tweeters on top of an enclosure. Am i correct in my assumption, can you simply just place these anywhere and feed them a signal?

It depends what version of tweeter I bet, do the dipoles need to be mounted in this manner?

Lastly, is $200-$300 too much for a new set of these?

http://cgi.ebay.com/ESS-HEIL-AMT-1D-...QQcmdZViewItem

What combinations have you tried with the tweeters?

tf1216 · 6th April 2006, 03:43 PM

Ok, I read the entire thread linked to below:

ESS AMT-1 Air motion transformers ?!

I did conduct a search before posting my thread but I was lazy. Got all my answers now. Thank you!!

5th April 2006, 08:08 PM	#1
tf1216 diyAudio Member Join Date: Nov 2004 Location: Minnesota	Would like to learn more about the ESS AMT tweeters Hey guys, I have recently stumbled across these tweeters and would like to know why there is so many different models. For example, I saw AMT - 1A, 1B, 1C, 1D and so on. How old are these guys and are they as great as I read? Thank you!!!!

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6th April 2006, 04:17 AM	#2
tf1216 diyAudio Member Join Date: Nov 2004 Location: Minnesota	Ok, I think I figured out the answer to my question. Thanks anyway! : Þ

6th April 2006, 01:52 PM	#3
JohnL diyAudio Member Join Date: Apr 2004 Location: Tampa, FL	Hey, what would you like to know about the different models? They started with the AMT1, the 1a, 1b, 1c, and 1d (and 2) were all subsequently newer models. They made minor modifications to the crossovers and woofers (they never seemed to get the woofers right) They also made AMT1 towers and AMT1 bookshelves, bigger and smaller respectively. The AMT3 was also known as the Rock Monitor and was a big 3 way. The AMT4 used a smaller version of the AMT tweeter along with a smaller woofer. The AMT5 was a bookshelf that didn't use the dipole tweeter, but a monopole AMT. The AMT6 was a big prosound job with an array of 4 tweeters at the top and 2 - 12's. There was also an line they called Concept that used a different model of AMT tweeter. There were some other models, but these are the most popular. When I first bought a 1B from a friend, I thought it had a very special sound to it. The AMT sound is something I like very much. Unfortunately it doesn't blend well with a 12" woofer (especially 1970's vintage). I've done a couple of designs that match them up with more modern 8" woofers that sound much better, IMHO. I'm still working on the perfect combo, but I'm happy with the direction it's going. John

6th April 2006, 02:17 PM	#4
tf1216 diyAudio Member Join Date: Nov 2004 Location: Minnesota	Thank you for the reply John! You told me everything I wanted to know. Do you mind if I ask a few more questions? I am new to the DIY world and I see a lot of talk about different drivers being superior to one another. I suppose it depends on the person how they want to define 'superior' but do you feel these tweeters are that much better than a great dome or a ribbon? Also, I see many people place these tweeters on top of an enclosure. Am i correct in my assumption, can you simply just place these anywhere and feed them a signal? It depends what version of tweeter I bet, do the dipoles need to be mounted in this manner? Lastly, is $200-$300 too much for a new set of these? http://cgi.ebay.com/ESS-HEIL-AMT-1D-...QQcmdZViewItem What combinations have you tried with the tweeters?

6th April 2006, 03:43 PM	#5
tf1216 diyAudio Member Join Date: Nov 2004 Location: Minnesota	Ok, I read the entire thread linked to below: ESS AMT-1 Air motion transformers ?! I did conduct a search before posting my thread but I was lazy. Got all my answers now. Thank you!!

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