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ATC Speakers Owners & Discussion Thread


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Guest Misterioso

I am doing some research on (active) ATC speakers and thought I just open an "owners and discussion thread", given that none seems to exist.

 

Can someone educate me why the drivers in the SCM50/100/150 models are aligned asymmetrically? Is this some sort of time alignment? How should these speakers be set up? Tweeters inside or outside? 

 

Also, it seems the "Classic" (hifi) versions of these monitors come with stands, while the "Pro" versions come without, is this correct? There are also tower versions of these speakers, which don't need extra stands, but it seems they are not available down under. I might be wrong. 

 

Finally, has anyone had a chance to compare the latest versions of the SCM50 ASL and SCM100 ASL speakers? Do they differ in anything else than their ability to play loud and go deep?

 

@PureMusicGroup: Happy to see that you took over the local distribution. Are you planning to demo any ATC speakers at the Melbourne hifi show? If so, would you be happy to reveal which models? 

 

Thanks!

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Well, I've paid the entry fee and have rejoined the ATC club. I was a passive member last time around, this time I'm going active. Don't spare the horses, driver!

Well, they have arrived !!!!!   Thank God I got the 50A and NOT the 100A.   They only just squeezed trough my front door in the shipping cartons and up a flight of stairs, that dog

Glad I never had to choose between my wife and my ATCs.  I would really, really miss her.

You set them up with tweeters inside.

And yes the classic domestic version comes with stands the pro version doesn't. 

 

The active 100's go lower in the bass and also will play louder without distortion or any feeling of being stressed at all.

The active 50 play plenty loud enough though and are are a better option if you have a small room.

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Glad to see someone has started an ATC owners thread 👍

I haven’t had the opportunity to listen to a pair of 50’s but do own a pair of early 100’s. 

From the user manual it states.

The dome and tweeter are offset to one side, in small rooms they should be on the inside and in large ones the outside.

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14 minutes ago, Conch said:

Glad to see someone has started an ATC owners thread 👍

I haven’t had the opportunity to listen to a pair of 50’s but do own a pair of early 100’s. 

From the user manual it states.

The dome and tweeter are offset to one side, in small rooms they should be on the inside and in large ones the outside.

Ahh yes, I should have checked the manual first. That's interesting. Seems the idea is to prevent reflections from side walls. The assumption is probably that speakers will be placed sufficiently far away from side walls in large rooms. 

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1 hour ago, MarkT said:

And yes the classic domestic version comes with stands the pro version doesn't.

That's a strong argument for the classic version given about equal pricing and the trouble to source decent speaker stands down under. The only issue that speaks against the classic version is that they are designed to be used with grills. I like to see the drivers.

Edited by Misterioso
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Yeah I like to see the drivers too.

 

Had to buy a pair of Sound Anchor stands from the USA for my Pro version scm100's , cost a pretty penny with shipping.

Edited by MarkT
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I'd better start by declaring that I'm the ATC dealer in WA. I have also owned ATC speakers since 1996 when I bought a pair of 100 actives...so feel free to assume I'm biased for one reason or the other. 😉

 

The tweeter and midrange driver are offset to reduce distortion by having different distances to the side edges of the baffle. The grill that fits around the baffle, has rounded edges to further reduce edge diffraction. 

 

In practice, the effects of grill on or grill off are quite subtle and owners are split about which they prefer sound-wise. As for tweeters in vs tweeters out, however, that change can be huge.  @Misterioso I think you have it correct about distances to side walls. In a room that is nearly 10m long but only 4m wide, my current 150As and previous 100As sounded far better with tweeters inwards. Id recommend that as the default orientation.

 

All of the domestic models, including towers are available in Australia.  Apart from cabinet size and woofer size, the 50s/100s/150s are identical.  The domestic models come with a quality wood veneer as standard. The professional models do not. Construction of the cabinets for domestic models is outsourced to a manufacturer of high end furniture. I have read that ATC build the cabinets for professional models themselves. The baffles of the professional models have a kind of "cut-out" that is visible and is intended for an alternative tweeter position if the monitors will be placed on their sides.

 

Cheers,

JD

 

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18 hours ago, Misterioso said:

 

@PureMusicGroup: Happy to see that you took over the local distribution. Are you planning to demo any ATC speakers at the Melbourne hifi show? If so, would you be happy to reveal which models? 

 

Thanks!

 

 

Hi All,

 

Great to see plenty of interest and discussion on the ATC products. We are very pleased to be working with such a great company and hope re-invigorate the brand here with more of the visibility/audibility it deserves!

 

Thankyou @JDWest for your contribution/answers above - WA folks be sure to get in touch with John for anything ATC related. 

 

@Misterioso - We will certainly be there with ATC at the Melbourne Hifi Show (18th-20th October). We will be demonstrating a pair of SCM100 ASLT(Active Tower) in a rather special finish. Come and visit us in "Lake Room 4"!

 

 

 

 

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2 minutes ago, PureMusicGroup said:

We will certainly be there with ATC at the Melbourne Hifi Show (18th-20th October). We will be demonstrating a pair of SCM100 ASLT(Active Tower) in a rather special finish. Come and visit us in "Lake Room 4"!

That's great news! I will be there. Thanks for your response.

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On 16/09/2019 at 10:43 AM, Guest Misterioso said:

That's a strong argument for the classic version given about equal pricing and the trouble to source decent speaker stands down under. The only issue that speaks against the classic version is that they are designed to be used with grills. I like to see the drivers.

The grills do provide some peace of mind.

Keeping those drivers out of sight can keep curious fingers away from the delicate mid/tweeter domes. My kids are adults (supposedly), but even adults get curious.😉

I always keep the grills on my SCM100's when listening - I think they sound a bit smoother and I don't hear any down side - I think in a treated room you'll notice the difference. With the grills on I find them less physically obtrusive too.

The grills slip on/off easily if you want to ogle the drivers.

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Sexy pics of naked ATC drivers and rounded edge baffle on the Pro monitor versions.

 

The rounded edge is as previously mentioned built into the grilles on the domestic monitors.

 

.

20191025_125852.jpg

20191025_131724.jpg

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ive previously auditioned the older passive ATC 100 as found them good but wasnt the speaker for me. but when visited the recent Melbourne Hifi show the Active ATC 100 had a sparkle that i liked which the previous pair didnt.

 

sent a couple of emails to the melbourne dealer but he has yet to respond. 

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11 minutes ago, genkifd said:

ive previously auditioned the older passive ATC 100 as found them good but wasnt the speaker for me. but when visited the recent Melbourne Hifi show the Active ATC 100 had a sparkle that i liked which the previous pair didnt.

 

sent a couple of emails to the melbourne dealer but he has yet to respond. 

I often find hifi dealers here slow to respond to emails , best to ring and talk in person.

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21 minutes ago, MarkT said:

I often find hifi dealers here slow to respond to emails , best to ring and talk in person.

Amen, some you would swear aren't interested in a enquiry which could lead to a sale 

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good idea.

 

i find this salesperson rather different to others. as he doesnt believe in room treatment as most clients of his has nil. 

 

to me this does not show the true capabilities of the speaker as room effects could dampen or increase the speaker's attributes.

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10 hours ago, genkifd said:

good idea.

 

i find this salesperson rather different to others. as he doesnt believe in room treatment as most clients of his has nil. 

 

to me this does not show the true capabilities of the speaker as room effects could dampen or increase the speaker's attributes.

IME you can get significant performance gains applying room treatment to an ATC setup.

Mitigating the room influence will probably pay dividends with any speaker, but perhaps because ATC chases a fundamentally accurate low distortion sound it may benefit even more.

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43 minutes ago, genkifd said:

got in touch with the retailer at last. 

 

question whats the sonic differences between the floor stands and the bookshelf versions?

Best to have a listen to both if you can.

In general the floor standers have more bass.

They all have a similar sound character that is addictive as it is enjoyable 👍🏻

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33 minutes ago, genkifd said:

dont think i would be able to listen to both. unfortunately.

 

thanks. i generally prefer floor stand over bookselves.

I have to chuckle when I see the stand mount SCM100's referred to as 'bookshelves'.

A nonsense descriptor given the size and weight of these speakers.

Had I not bought my SCM100 towers S/H I probably would have gone for the the stand mount version for the cost saving - given that working box volume (100 litres) and all hardware is the same.

I wonder why the tower version would have more perceived bass? Maybe just coupling more energy to the floor?

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That would be my thinking as well. 👍

So long as you can accomodate the extra cabinet size and bass output.

I also think the stands that come with the 150's look nicer than the 100 stands.

 

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as im building my system slowly. starting from the speakers/amp, sound treatment, pre, etc 

 

this system will be in a corner of my room of approximately 5 x 5 x 2.6m ceilings (note this room is odd shape. wondering if the 150s are too big? or 100 would be better suited.

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Maybe.

My room is only 4.3x6m, I'd like to try the 150's but wonder if they'd be too much for the room.

The thing I'd be wary of is that the 150's are very extended. They quote -6db figure of 25Hz, but that's free space. Probably more like 20Hz in room.

ATC bass is tight and fast but the room will exert it's influence. Having two similar dimensions won't help either as room modes will stack up.

Whether 100's or 150's you may want to investigate bass traps to smooth out the low-mid bass.

 

Edited by Tobes
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I think the term "bookshelf" confused some of us here; thought you were talking SCM 11s or 19 passives, which obviously have less bass than the higher models. "Classic" is the term for stand mount 50s and up. 

 

I spoke with ATC before upgrading my 100A Classics to 150As. They said there is no extra bass extension with Towers vs Classic. As @Tobes said, the working cabinet volume is the same. Indeed, ATC claim no sonic difference at all between Classic and Tower in the same range. I suppose some very minor difference is possible due to interaction with room but ATC suggested it is a purely aesthetic choice. I went with 150A towers anyway.

 

The extra bass extension of my 150s compared to my 100s was quite obvious. This could potentially introduce more difficult issues with your room, I suppose.

 

Cheers,

John

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thats good to know JD West.  how to control the bass in a mid size room. my room is actually going to be our bedroom. so the bed will kill some of the bass (hopefully).

 

 

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5 minutes ago, genkifd said:

my room is actually going to be our bedroom. 

Man, I'd never get away with scm150's, 100's or even the 50's in a bedroom. 

The 19's that @MarkT has in his might be ok. Though I think if I moved my 19's to the bedroom I'd be sleeping solo......that's my wife's book reading nook.

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1 hour ago, Tobes said:

Man, I'd never get away with scm150's, 100's or even the 50's in a bedroom. 

The 19's that @MarkT has in his might be ok. Though I think if I moved my 19's to the bedroom I'd be sleeping solo......that's my wife's book reading nook.

Glad I never had to choose between my wife and my ATCs.  I would really, really miss her.

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14 hours ago, genkifd said:

recently read an article from Hifi+ ATC 150 with the Primare 60. the reviewers room is rather small and he indicated that this setup didnt sound overly bassy.

The over damped alignment of the ATC bass drivers means they're less likely to sound boomy than many other speakers.

I watched a Youtube video the other day where the reviewer wondered if the ATC 150 bass drivers were working because there was much less bass than his previous speakers (ie ATC was tight and accurate).

https://www.youtube.com/watch?v=uHAxka2fIs8

 

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25 minutes ago, genkifd said:

can anyone recommend a DAC / pre paring with the Active ATC?

Benchmark DAC3?........or an ATC pre ( preferably the SCA2 for you) and standalone DAC 

 

FWIW.........IME I found that using an OPPO UHD 205 and ATC CA2 MK2 pre with my SCM70ASL's gave a better result than using a Benchmark DAC2 HGC as a DAC/PRE .............but of course YMMV. 

 

To do SCM 150's justice, and achieve better system balance, you should probably look at higher end DAC/PRE's anyway.

Watch out for high output level units as they mightn't get along as well with your ATC's 1V input sensitivity.

 

My friend uses a Jeff Rowland AERIS as a DAC/PRE which sounds great in his system.

His system doesn't have ATC's though......

 

Good Luck 

Edited by JohnL
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I've gone a little left field with my active ATC's in using a Modwright LS100.  I have a Benchmark DAC 2 and still enjoy this as a pre and previously used a CA2 (that John L has now) and this was also pretty good.  The Modwright gives a little more body to the sound that comes with valves.  Plus it's got a killer phono stage.   I was concerned about output impedance of what ever pre I was using but ultimately as long as the impeadance output isn't too high it seems to work okay.  I used an ME25 along the way too which was also really nice and had the lowest impedance of all the pre amps I've tried.   The ATC and Benchmark are a little higher and the MW is around 300 ohms.

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1 hour ago, genkifd said:

can anyone recommend a DAC / pre paring with the Active ATC?

Definitely worth a demo of the Chord Hugo TT2.

Incredibly transparent and lively running direct to ATC actives.
 

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