My DIY ATC SCM100's

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My DIY ATC SCM100's

Postby ADCNC » Mon Jan 20, 2014 9:41 pm

Hi All, Im new on here but a few that have already spoke to me will know what my speakers are about.

For those who don't heres the story.

Being an precision engineer and owning my own business does have its perks, i like a challenge and like to experiment with design.
That being said i always wanted a pair of ATC's and when i stumbled on the option of building my own and adding my own twist to them i could not refuse.

The Build took place over about a month.

I first did the design and calculations in solidworks (CAD Software) once i was happy with the design and had all the internal volumes right i started the build.

The construction was made from 25mm MDF and the baffle is 2x sheets of birch ply glued together and machined out.
All the internal walls were lined with bitumen backed foam sheets.
The binding posts were milled on my CNC mill at work out of a solid block of aluminium and finished off with engraving to show the HF, MF & LF Terminals

http://www.flickr.com/photos/90837425@N05/12056293155/
http://www.flickr.com/photos/90837425@N05/12057144876/
http://www.flickr.com/photos/90837425@N05/12056685744/
http://www.flickr.com/photos/90837425@N05/12056683184/
http://www.flickr.com/photos/90837425@N05/12056284335/
http://www.flickr.com/photos/90837425@N05/12056679174/
http://www.flickr.com/photos/90837425@N05/12056676224/
http://www.flickr.com/photos/90837425@N05/12056275185/
http://www.flickr.com/photos/90837425@N05/12056670124/
http://www.flickr.com/photos/90837425@N05/12056668054/

I know, I know before anyone shoots me down about speaker position in such a small room, this is just a temporary measure :-)

I was planning on making the front baffle board out of solid aluminium 35mm thick but for the time being ill settle for ply wood as is bumps the cost up by £350

Please let me know your thoughts

BTW the rest of the system consists of a Rotel RA-1060 Amp acting as a pre amp, that controls two musical fidelity Supercharger 550K's, for source im running a Arcam CD82 (old now) but im planning on something like the Naim DAC-V1

Cheers

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Re: My DIY ATC SCM100's

Postby MattSPL » Mon Jan 20, 2014 10:11 pm

Very impressive, I really like how your speakers turned out :D
How do they sound?

Cheers
Matt
Sony BDP-S790 > Matrix Quattro Dac > Digidesign RM2's with SB Acoustics drivers > DIY Dayton Audio UM18-22 Sub

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Re: My DIY ATC SCM100's

Postby ADCNC » Mon Jan 20, 2014 10:56 pm

Hi Matt, They sound very impressive when i set them up in the lounge downstairs. They had plenty of space to breath, massive soundstage crisp highs that never become harsh. i need not mention the midrange :-) but the bass is tight, well controlled yet can knock the wind out of your lungs when need be. i think the curved back has a massive contribution as far as cutting down on internal coloration and standing waves.

I have a Rel Stadium III Sub but its not really need now.

Oh btw in one of the pic you will see the plinth the speakers are sitting on, this is a temp setup until i get around to machining the proper one out of aluminium need less to say it will not look like it does at the moment.

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Re: My DIY ATC SCM100's

Postby MattSPL » Mon Jan 20, 2014 11:17 pm

Sounds good :D
I used to have an RA-1060, I sold it to a friend who still uses it with a pair of Kef reference speakers. It's a really nice amp.

I look forward to seeing your plinths when they are finished.

Cheers
Matt
Sony BDP-S790 > Matrix Quattro Dac > Digidesign RM2's with SB Acoustics drivers > DIY Dayton Audio UM18-22 Sub

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Joined: Tue Jan 24, 2012 11:33 pm

Re: My DIY ATC SCM100's

Postby adelias » Tue Jan 21, 2014 10:58 am

Nice work!!!

Could you give us some info on the drivers and xover.

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Re: My DIY ATC SCM100's

Postby ADCNC » Mon Sep 01, 2014 9:29 pm

Hi Guys, sorry about the long delay in replying, as regards to x-overs they are what wilmslow audio built, they use there "Supercaps" that im told by them are made by a respected manufacture well known in the audio circle.
As for the drivers i will have to dig the boxes out and see what they say on.

On a side note I'm just about to build a few Ncore amps to power them machined out of a solid billet block of aluminium and then anodised.

Should be fun.

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Re: My DIY ATC SCM100's

Postby MattSPL » Tue Sep 02, 2014 5:08 pm

Interested to see how the Ncore amps turn out and hiw they drive the ATC's :)

Cheers
Matt
Sony BDP-S790 > Matrix Quattro Dac > Digidesign RM2's with SB Acoustics drivers > DIY Dayton Audio UM18-22 Sub

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Re: My DIY ATC SCM100's

Postby Shadorne » Sun Sep 07, 2014 4:09 pm

Awesome! Those speakers look amazing. I like the shape of the rear of the cabinet.
"ATC. Always The Champion. I will not record without them. The best studio monitors. Period." ~ Lenny Kravitz

Benchmark DAC3, 2 x ATC SCM EL150ASL, 1 ATC SCM 0.1/15, 2 x Genelec 8020, Roland TD-30 Drums, Pearl Ref Acoustic Kit, Ludwig brass & Pearl Ref snares, Gibson LP Supreme, Fender Precision Bass

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