ATC custom monitor question

jackinthebox · 5th October 2009

hi guys. i'm not entirely sure if this is the right place to be posting but i thought this is where the most technical people hang out. i have an abundance of atc drivers at the moment and am having trouble deciding what arrangement would work best for my needs. I will be using the speakers in fairly nearfield, about 5 or six feet apart with a window between th two. I have a pair of atc 3 way amps as well as four atc 12s, four atc alnico 9s, two atc 3 inch soft domes and 2 audax tweeters (which i'm undecided upon, might get some ribbons).

I am currently thinking of something along the lines of an ATC SCM110 ASL which uses two 9s on either side with the soft domes and audax tweeters. My question is , will they be too big for my room, which is about 4m x 2.5 x 2.5. well treated with large bass traps and LEDE with good diffusion. I need a full range speaker which will be basically sofitt mounted for everything from tracking to mastering.

have seen smaller ATCs with one 12 or even one 9. Obviously a smaller box would be more manageable but will it give me enough bass? Or is two 9s over the top? any opinions would be appreciated.

I'm also considering a closed box design with some help from the atc amp to extend the bass. I'd rather avoid electronic enhancement as i imagine it cause some phase distortion but i've been told there is some way of tweaking the amplifier to go lower. Anybody heard of this?

Also has anybody had experience of alnico ATCs? i believe they stopped in about '78 when alnico became too expensive. I have four 9"s and am on the lookout for an alnico 3" softdome but apparently they only ever made about 2000. also any tweeter recommendations would be great as i' not all that impressed with the audax, even though it's on a special atc baffle.

I've also heard about modifications to the soft dome to reduce distortion. Anyone?

Thanks in advance if anyone has any info.

jack

jackinthebox · 12th March 2010

bump
thumbsup

O.F.F. · 13th March 2010

ATC has used Vifa D27 silk dome tweeters, you might prefer them to Audax.

a1greatdane · 21st March 2010

Hi Jack,
I would still be able to assist You in a usual professionel capacity and I do believe I gave You some design guide lines for Your possibles.

Have You by the by seen anything of the ADA4898-1 samples ordered by me in CSW capacity with Your setup in mind and supposedly signed for by somebody in Your near vecinity?

Kind regards
'Dr' O
aka
a1greatdane
aka
Sven R. Olsen

5th October 2009	#1
jackinthebox Gear addict Join Date: Feb 2006 Location: Manor House London Posts: 487 Thread Starter	ATC custom monitor question hi guys. i'm not entirely sure if this is the right place to be posting but i thought this is where the most technical people hang out. i have an abundance of atc drivers at the moment and am having trouble deciding what arrangement would work best for my needs. I will be using the speakers in fairly nearfield, about 5 or six feet apart with a window between th two. I have a pair of atc 3 way amps as well as four atc 12s, four atc alnico 9s, two atc 3 inch soft domes and 2 audax tweeters (which i'm undecided upon, might get some ribbons). I am currently thinking of something along the lines of an ATC SCM110 ASL which uses two 9s on either side with the soft domes and audax tweeters. My question is , will they be too big for my room, which is about 4m x 2.5 x 2.5. well treated with large bass traps and LEDE with good diffusion. I need a full range speaker which will be basically sofitt mounted for everything from tracking to mastering. have seen smaller ATCs with one 12 or even one 9. Obviously a smaller box would be more manageable but will it give me enough bass? Or is two 9s over the top? any opinions would be appreciated. I'm also considering a closed box design with some help from the atc amp to extend the bass. I'd rather avoid electronic enhancement as i imagine it cause some phase distortion but i've been told there is some way of tweaking the amplifier to go lower. Anybody heard of this? Also has anybody had experience of alnico ATCs? i believe they stopped in about '78 when alnico became too expensive. I have four 9"s and am on the lookout for an alnico 3" softdome but apparently they only ever made about 2000. also any tweeter recommendations would be great as i' not all that impressed with the audax, even though it's on a special atc baffle. I've also heard about modifications to the soft dome to reduce distortion. Anyone? Thanks in advance if anyone has any info. jack __________________ www.jackintheboxmusic.com recording studio, music production and pro audio manufacture. Gotham Audio Cable dealer. Custom GAC-3 mic cables and GAC-7 tube mic cables made to order. www.opalmicrophones.com recording microphones with custom high end upgrades

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12th March 2010	#2
jackinthebox Gear addict Join Date: Feb 2006 Location: Manor House London Posts: 487 Thread Starter	bump thumbsup

13th March 2010	#3
O.F.F. Lives for gear Join Date: Apr 2006 Posts: 2,198	ATC has used Vifa D27 silk dome tweeters, you might prefer them to Audax.

21st March 2010	#4
a1greatdane Gear interested Join Date: May 2009 Location: Manor House, London Posts: 3	Hi Jack, I would still be able to assist You in a usual professionel capacity and I do believe I gave You some design guide lines for Your possibles. Have You by the by seen anything of the ADA4898-1 samples ordered by me in CSW capacity with Your setup in mind and supposedly signed for by somebody in Your near vecinity? Kind regards 'Dr' O aka a1greatdane aka Sven R. Olsen