Your thoughts about ATC loudspeakers


I’m interested in the ATC SCM-40 from their HiFi series and would like to hear from people who have owned or spent a lot of time with ATC speakers. This is a fairly new model and may be a bit of a departure from their classic sound.

At the show in Newport last weekend, I was quite taken by these speakers. I went back the next day and heard the same things that I liked about them, but a couple of red flags also went up:

Microdynamics – not sure these speakers do them well and microdynamics are critical to communicating inflection and nuance and to making music sound alive

Imaging, specifically wrt depth. Nothing much outside of the plane of the speakers, so recording venue info is not there and even instrument and vocal body may suffer a bit.

Were these shortcomings of setup or associated gear, or is this what ATC does?
Ag insider logo xs@2xdrubin
Well Drubin (and knowing you are local) I have all the ATC Hi-Fi Passive series including the SCM19v2 and SCM40v2 available for demo in our showroom in Fairfax, CA (Marin County). We also have some other interesting stuff like the new NAD M22 Ncore amp. Will also be exhibiting at the CA Audio Show with ATC in August.

IMO depth is nearly entirely a psychoacoustic construct that depends on how far away from the front wall the speakers are. Further you put them, more perception of depth you have.

Resolution wise (which covers off microdynamics) I think these are without peer at their price point. I'm not a speaker designer but I think it is because they are using extremely beefy drivers (large magnets with underhung coils). Take a look at the size of the mid-woofer in the SCM19. Beefy!

Interestingly I think the SCM19v2, which is a standmount, is higher resolution than the SCM40v2. Technically this could be because the mid-woofer in the 19 is the SL "Super Linear" version, whereas the woofer in the 40 is their standard version. May also be partially due to the increased complexity of the passive crossover in the 40. They have the same sonic signature but the 40s have a much "weightier" presentation.

ATC speakers have three main strengths: neutrality, resolution and bass quality.

A lot of people don't like neutral speakers (they might prefer Raidho or B&W, with their explicitly designed "not to be flat" response) but personally I do.

Bass is tight and articulate due to either sealed box or a very low Q port tuning in their larger speakers.
Acousticfrontiers, I have had a fair share of exposure to the 40, 19 and also the SCM 20. It is true that the 19 and 20 feels lighter and quicker a bit but they somehow just do not have the midrange palpability of the 40 (due to that amazing dome mid range driver of the 40). Regarding bass, it is both ways, the 40 goes deeper and fills a bigger place more elegantly while sounding very tight and defined, where as the 19 and 20 are somewhat more lean and agile. It is going to be a matter of preference and room size IMO.
Great speakers, but from what I've heard and what ATC owners have to say, is that active is the ticket.
>>"IMO depth is nearly entirely a psychoacoustic construct that depends on how far away from the front wall the speakers are. Further you put them, more perception of depth you have.<<"

Thank you! I have long believed this to be true. If your brain (via your eyes) doesn't perceive space for the musicians to occupy behind the speakers, your ears will not perceive soundstage depth through your audio system. At least that's what I believe. Unless you've pulled your speakers out into the middle of the room (even as an experiment), I don't believe you've experienced the depth your speakers are capable of.
-Bob
Pani

Very much agree with your conclusions. They are both exceptional speakers, very similar tonality, but different presentations. Like you said, pick one based on your preferences!