ATC speakers / Monitors

[DSJR]

Is there any measurements of SCM20?

I'm wondering how many hz can you reach at -3db when positioned close to the front wall?

Not the current ones with black boxes, but the 20ASL Pro active in original cast curvy carcasses were in a group test in an article discussing the NS10 and to be honest, they measure on axis much the same as the 19s that Amir tested here. I gather the response shape was deliberate, and many c2000 'small monitors' balanced much the same in these tests - Ancient screenshot below...

There was a bass lift control on the back and I preferred the 'sound' even close to a wall with bass lifted by two notches. sadly, the 'quality' of said bass was what I call 'thumpy stunt bass' and nothing remotely like as good as ATCs larger models.

 

[Avp1]

Is there any measurements of SCM20?

I'm wondering how many hz can you reach at -3db when positioned close to the front wall?

Forget about any bass below 80Hz from these speakers. They are designed to work with subwoofers. Get subwoofers and be happy with newly found bass.

 

[Ultrasonic]

Is there any measurements of SCM20?

I'm wondering how many hz can you reach at -3db when positioned close to the front wall?

Probably obvious but note that this will depend on your room and your listening position. Have you contacted ATC to ask though? I expect they'll be able to offer helpful information based on their experiences.

 

[807Recordings]

Oh man the audiophoolery even runs deeper on Pro forums. It’s appalling to see the level of flakiness.

It might even be worse these days with the so called "influencers" and bedroom producers. Shiny objects, horrible acoustics put in with out any scientific methodologies, paid shills, etc. Something I learned along the lines is there is an artistic side and technical side to music production(s). When in artistic mode you do what you have to for the best expression of the music. This of course extends into the actual mixing and mastering and to a certain point the tools that are used. Experience can be very important here of course and what translates matters most. Still there is countless masters I have heard on my various systems that have shocked me in areas of how was that missed. Simple answer looking back into interviews and realizing they are mastering on fairly questionable monitors, and even more so the rooms.
But people will argue but they got so many hits ;-)

 

[goat76]

Is there any measurements of SCM20?

I'm wondering how many hz can you reach at -3db when positioned close to the front wall?

ATC always aims for low distortion over bass extension, so if you go for SCM20 I think you should position them where they sound the best in the room, and then just add subwoofers for handling the low bass.

 

[dfuller]

Is there any measurements of SCM20?

I'm wondering how many hz can you reach at -3db when positioned close to the front wall?

I'd bet that backed up to a wall it should give good response down to more like 40-45hz. It's not a bass monster and it won't do that at any meaningful level.

 

[Ilkless]

ATC always aims for low distortion over bass extension, so if you go for SCM20 I think you should position them where they sound the best in the room, and then just add subwoofers for handling the low bass.

[citation needed]

And no, general vibes from anecdotal experience doesn't count.

 

[goat76]

[citation needed]

And no, general vibes from anecdotal experience doesn't count.

Sorry, but I can't help you with the particular problems you have…

ATC always lets the size of the speakers dictate how deep they go, and even when it comes to their ported speakers, they use the port to lower the distortion rather than use it for bass extension.
Whenever lower bass extension is needed, you simply need to add subwoofers or go with one of their larger models.

 

[YSC]

Not the current ones with black boxes, but the 20ASL Pro active in original cast curvy carcasses were in a group test in an article discussing the NS10 and to be honest, they measure on axis much the same as the 19s that Amir tested here. I gather the response shape was deliberate, and many c2000 'small monitors' balanced much the same in these tests - Ancient screenshot below...


View attachment 427805


View attachment 427807
There was a bass lift control on the back and I preferred the 'sound' even close to a wall with bass lifted by two notches. sadly, the 'quality' of said bass was what I call 'thumpy stunt bass' and nothing remotely like as good as ATCs larger models.

Looks like a "house sound" and not really neutral sound, though mid centric usually don't sound bad compared to V shaped

 

[Ktacos]

they use the port to lower the distortion rather than use it for bass extension.

That one always bugged me, they can claim but what they want, but after building a clone it's pretty apparent what their porting is doing and it definitely adds extension. Box volume and port were identical in my clone.

Whenever lower bass extension is needed, you simply need to add subwoofers or go with one of their larger models.

Good thing they came out with a $5k sub like last year that has no DSP lol.

 

[Ktacos]

Looks like a "house sound" and not really neutral sound, though mid centric usually don't sound bad compared to V shaped

Looks to me like a woofer with no baffle step loss compensation built into the xover. Kinda lazy,

 

[goat76]

That one always bugged me, they can claim but what they want, but after building a clone it's pretty apparent what their porting is doing and it definitely adds extension. Box volume and port were identical in my clone.

I don't think they claim theres no bass extension at all with their port design, it's just that they use it foremost for another reason than adding extension.

Good thing they came out with a $5k sub like last year that has no DSP lol.

As long as there are no guns involved, I think you are free to use any other brand of subwoofer, or even build your own if you like.

When it comes to DSP, I rather use an external unit of my choice than something that comes built-in with the subwoofer, which may or may not be a good one. Otherwise, I still want something external to make sure there are no unnecessary dalays caused by the built-in DSP, and that possible problem is already naturally solved if the full signal passes an external unit instead.

 

[dfuller]

[citation needed]

And no, general vibes from anecdotal experience doesn't count.

Having seen their crossover schematics, they're certainly not doing any EQ to goose the LF with the LF trim all the way down. They do have that, but it's a broad shelving filter that affects up to ~200hz and not something sharp like e.g. a Linkwitz Transform.

Looks to me like a woofer with no baffle step loss compensation built into the xover. Kinda lazy,

The weird part is they definitely do have flatter two ways than the SCM19/20 which makes the curve on that particular speaker substantially more confusing. The SCM7 and SCM11/12 are much more linear.

That one always bugged me, they can claim but what they want, but after building a clone it's pretty apparent what their porting is doing and it definitely adds extension. Box volume and port were identical in my clone.

This was of an SCM50, right? Impedance curves I've seen suggest port tuning is quite low, well below 40hz.

 

[eyes-on-you]

I have the ex Dynaudio C1 owner.

I’m not measured yet but pleaced them on the same position with C1, i did not feel any bass absence.

That’s veey interesting.

PS:Room Size: 427cmx303cmx267cm
SCM20 placed 124cm far from the front wall
Room is well trated.

 

[goat76]

I have the ex Dynaudio C1 owner.

I’m not measured yet but pleaced them on the same position with C1, i did not feel any bass absence.

That’s veey interesting.

PS:Room Size: 427cmx303cmx267cm
SCM20 placed 124cm far from the front wall
Room is well trated.

I like the “dry” quality type of bass both my ATC speakers have, it's very “clean” and “articulate” compared to the ported speakers I've had before. But both the ATC speakers I have (SCM40 and SCM11) need subwoofers for a truly full-range sound.

 

[DSJR]

Looks like a "house sound" and not really neutral sound, though mid centric usually don't sound bad compared to V shaped

The current 11 doesn't measure this way by all accounts and certainly didn't when I heard them briefly.

Not sure the 20 in any form is a big seller for them to be honest (no idea, just guessing), as the 25 seems to be the 'near field' of choice for studios using ATCs. I suspect the extra costs over the Neumann 310 can be absorbed in the business accounting somehow?

 

[Ilkless]

The current 11 doesn't measure this way by all accounts and certainly didn't when I heard them briefly.

Not sure the 20 in any form is a big seller for them to be honest (no idea, just guessing), as the 25 seems to be the 'near field' of choice for studios using ATCs. I suspect the extra costs over the Neumann 310 can be absorbed in the business accounting somehow?

So every ATC design is compromised and non-representative of their quality unless stipulated otherwise? Not very convincing.

 

[YSC]

The current 11 doesn't measure this way by all accounts and certainly didn't when I heard them briefly.

Not sure the 20 in any form is a big seller for them to be honest (no idea, just guessing), as the 25 seems to be the 'near field' of choice for studios using ATCs. I suspect the extra costs over the Neumann 310 can be absorbed in the business accounting somehow?

Then the issue is that they don't even have a house sound, it's built parts glued together and hope for something not broken.

For business part, absolute C/P is usually not a thing remotely considered. It's usually more on things like famous brand name, better to be everyone (especially the boss, who often isn't remotely familiar of the tools, only having the money to invest and hire ppl) have always heard of (where, genelec and neumann isn't to layman).

Like when last year intel have deep trouble in CPUs self destructing and performing worse than AMD, lots of business still prefer buying intel based rigs, coz "nobody is fired for buying intel", even if it breaks at high rate, but if you suggest buying AMD and something minor need fixing and costing downtime, one will be in trouble of suggesting purchasing of a brand boss didn't heard.

 

[574stereo]

I have SCM50s with SCM11s at home. They sound tonally pretty similar to my ears...

SCM25s are very similar too, I work on them a lot...

 

[goat76]

I have SCM50s with SCM11s at home. They sound tonally pretty similar to my ears...

SCM25s are very similar too, I work on them a lot...

It’s the same with the SCM40 and SCM11, they also share the same tonality with each other.