going big for loudspeakers

newfinish · 18th October 2005, 09:09 PM

Hello everyone I planning to make a 3way system using:
SEAS T29CF002
ATC SM75-150
2 x ETON 11-581/50
Anyone used these speakers in different configuration?
I'm puting the best electronics in the Xovers,I'm not cutting corners at all,the boxes will be made of 1 1/2"
birch plywoood 6cubic feet.
Like to have suggestions,I was told that the mid is the best sound period.true?And what about the rest?

simon5 · 18th October 2005, 09:35 PM

Hi from Quebec City!

You went with high priced items, I hope you know that high price won't always equal better performance.

Might want to look at this review : http://www.zaphaudio.com/tweetermishmash/

New generation midrange/fullrange drivers like the FR125S and WR125S should at least be looked at.

Good luck in your project! No doubt you'll end with something good!

ShinOBIWAN · 18th October 2005, 09:46 PM

Good choice with SM75-150!

Its one of the best midrange drivers you can get, depending on your taste it could well be the best.

I've actually used both the super and standard version of this driver and if you can live without the extra sensitivity they sound exactly the same. You'll save a bundle too.

I've posted some detailed thoughts on its performance paired alongside Scan's R2904-7000 and a few bass drivers. The speakers I built with these drivers are here:

'Perceive v2.0' Construction Diary

'Perceive' Contruction Diary

You'll have to wade through some pages to find the comments on sound - sorry but I'm feeling lazy

One word of warning though! The ATC mid is a pain to mate with the bass driver or at least it was for me. Sure you can get something that sounds decent but to really get the best you definitely need a great bass driver and also one that matches well. I tried 4 x Seas L22's at first the 2 x Seas Excel W22's and finally only was really satisfied with ATC's own SB75-234 SC.

So be careful about matching drivers. Go with something that has a studio heritage and is paper/treated paper, using stiff cones for me just didn't do it and the Seas drivers are well respected at that. All the details of my discontentment with the Seas are in the above links.

Good luck!

newfinish · 18th October 2005, 10:51 PM

thx guys
I know that Avalon use the eton as a driver for lows.
its fast and very stiff,its aluminum honeycomb with kevlar i think...
the box should yield 94db/w
got the plots graphed and the frequence response just dont know how to post...

newfinish · 18th October 2005, 10:59 PM

do you think that VOlt could be a better choice for the 12"?

ShinOBIWAN · 19th October 2005, 02:32 PM

Quote:

Originally posted by newfinish
do you think that VOlt could be a better choice for the 12"?

Volt make some excellent drivers.

Try the Radial series if your wanting a 12", the B2500.1 is probably the better choice though as it extends very cleanly upto around 800hz and since you'd be crossing to the ATC at around 380hz you definitely want an extended bass driver. The 12" Radial is great down low and upto around 500hz but after this I found it sounded closed in and somewhat rough sounding. Something definitely to consider if your cross in the 400hz region.

Personally I fully recommend ATC's own bass driver if your partnering an SM75-150. Its the only one I've been 100% happy with.

newfinish · 21st October 2005, 12:43 AM

i have seen that you heard Wilmslow Loudspeaker prestige.but have you heard these www.williamshart.com/speaker
he says that he was the associate to wilmslow and now he left and build his own,strangely enough this guy took my first choice of speakers

but do you think that a XT18 vifa can rival atc in the mids?
I never heard neither could someone tell me the difference?
I love smooth yet detailed and stage,natural sound.

newfinish · 21st October 2005, 12:51 AM

Quote:

Originally posted by newfinish
i have seen that you heard Wilmslow Loudspeaker prestige.but have you heard these www.williamshart.com/speaker
he says that he was the associate to wilmslow and now he left and build his own,strangely enough this guy took my first choice of speakers

but do you think that a XT18 vifa can rival atc in the mids?
I never heard neither could someone tell me the difference?
I love smooth yet detailed and stage,natural sound.

this link works
http://www.williamshart.com/speaker.htm

18th October 2005, 09:09 PM	#1
newfinish diyAudio Member Join Date: Jul 2005 Location: Quebec	going big for loudspeakers Hello everyone I planning to make a 3way system using: SEAS T29CF002 ATC SM75-150 2 x ETON 11-581/50 Anyone used these speakers in different configuration? I'm puting the best electronics in the Xovers,I'm not cutting corners at all,the boxes will be made of 1 1/2" birch plywoood 6cubic feet. Like to have suggestions,I was told that the mid is the best sound period.true?And what about the rest?

18th October 2005, 09:35 PM	#2
simon5 diyAudio Member Join Date: Nov 2004 Location: Québec, Québec	Hi from Quebec City! You went with high priced items, I hope you know that high price won't always equal better performance. Might want to look at this review : http://www.zaphaudio.com/tweetermishmash/ New generation midrange/fullrange drivers like the FR125S and WR125S should at least be looked at. Good luck in your project! No doubt you'll end with something good! __________________ DIYaudio for President !

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18th October 2005, 09:46 PM	#3
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	Good choice with SM75-150! Its one of the best midrange drivers you can get, depending on your taste it could well be the best. I've actually used both the super and standard version of this driver and if you can live without the extra sensitivity they sound exactly the same. You'll save a bundle too. I've posted some detailed thoughts on its performance paired alongside Scan's R2904-7000 and a few bass drivers. The speakers I built with these drivers are here: 'Perceive v2.0' Construction Diary 'Perceive' Contruction Diary You'll have to wade through some pages to find the comments on sound - sorry but I'm feeling lazy One word of warning though! The ATC mid is a pain to mate with the bass driver or at least it was for me. Sure you can get something that sounds decent but to really get the best you definitely need a great bass driver and also one that matches well. I tried 4 x Seas L22's at first the 2 x Seas Excel W22's and finally only was really satisfied with ATC's own SB75-234 SC. So be careful about matching drivers. Go with something that has a studio heritage and is paper/treated paper, using stiff cones for me just didn't do it and the Seas drivers are well respected at that. All the details of my discontentment with the Seas are in the above links. Good luck!

18th October 2005, 10:51 PM	#4
newfinish diyAudio Member Join Date: Jul 2005 Location: Quebec	thx guys I know that Avalon use the eton as a driver for lows. its fast and very stiff,its aluminum honeycomb with kevlar i think... the box should yield 94db/w got the plots graphed and the frequence response just dont know how to post...

18th October 2005, 10:59 PM	#5
newfinish diyAudio Member Join Date: Jul 2005 Location: Quebec	do you think that VOlt could be a better choice for the 12"?

21st October 2005, 12:43 AM	#7
newfinish diyAudio Member Join Date: Jul 2005 Location: Quebec	i have seen that you heard Wilmslow Loudspeaker prestige.but have you heard these www.williamshart.com/speaker he says that he was the associate to wilmslow and now he left and build his own,strangely enough this guy took my first choice of speakers but do you think that a XT18 vifa can rival atc in the mids? I never heard neither could someone tell me the difference? I love smooth yet detailed and stage,natural sound.

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