Passive tri amp?mind to share how you work with it cause I'm confused with how it split from signal to power amp. Recently I done with vertical and horizontal only ,never try tri amping

@@noicealot Basically my 8000Q preamp has two main Pre outputs, one pair goes to the 8300MB mono power amps for the Bass the other pair goes to the 8000M mono power amps for the Mid Range Dome and from the Load Out phonos on those power amps, feeds the second pair of 8000Ms for the tweeters.

@@stephengarratt5076 How does that work regarding crosstalk between speaker wiring from the different Amps.. would like to listen... thanks for the upload

@@fredfungalspore All that I know is that my system works and gives me and those who visit me great pleasure.

Sounds brilliant! Have you heard your system with the Holo May Dac yet, the "ATC" of Dacs im terms of unparalleled quality for the price?

You could wrap a cloth around the grill if you wanted to but as is the grill will protect the drivers from any accidental damage, and that is all they are really there for.

Absolutely no need.

I love them like that. Grill looks a bit different in a good way (to me!)

is this the case with scm 11's ? so the passive crossover sounds like it cant handle the transitions well.

@@BrianGarside Don’t get me wrong, these are excellent speakers but a purchaser must also have as a must a very powerful high grade power amp of at least 150 watts, and it must be designed with a focus on audiophile power regulation-Naim is another brand with an emphasis on power supply. As current goes back and forth to the coils, capacitors etc of the passive crossover from each channel of the power amp, you need a strong stability of the power amps power regulators to avoid distortion at the crossover electronics. Also, these speakers drivers will ideally require 300 watt power blocks since 300 watts will reduce by 50 % by the time they hit each heavy driver, and ATC have a150 amp directly into the bass driver of the active version. These are extremely revealing speakers so in addition to a power amp, any distortions or just the say the overly analytical character of the upstream electronics . And will probably purchase the scm 40 actives to make a 2 box solution. If you are not a rich audiophile who can tinker endlessly you need to take as your guiding principle for sound and in that respect the atc actives are an audiophile bargain given the upstream carp eats mentioned. I expect the same issues mentioned will apply to the scm 11s. The best value for money speaker in the atc range is the atc scm 50s actives but they are still hugely expensive at 4 times the price of these scm 40 passives

@@fizywig This all makes sense. High powered amp with good current behind it and very low noise floor is what they need. I had the Parasound JC5 400x2 amp selected for such as task on a pair like these. Still need to purchase. Im going for passive and just get my own amp. Thanks for your feedback.

I agree with that. You're really better off buying the whole package that's engineered to work together as a cohesive unit. In the pro audio world, passive crossovers are virtually unheard of because active is better in every way except cost. I have the SCM150ASL Pro (w/ ATC tweeters) and am very happy with the system. For the first time I don't feel the urge to futz and fiddle because everything is correct as-is. If you're mainly a consumer who likes buying and possessing expensive things, you'll never find satisfaction because that's a sucker's game. But if you like to enjoy music, buy the actives and relax.

@@StringerNews1 will the active atc scm 40 s be a big upgrade from atc scm passives, and hence sell my amplifiers and upgrade? Will that be a significant sonic upgrade?

Probably not, ATC has developed an in house dual suspension tweeter based upon their legendary mid-range driver, and the tweeter is very competent.

Yes very true- I'm using 250W and when I tried a 300W amp it made a big difference.

As an owner of the SCM19 and now SCM40s I agree they like beefy amps but power amp ratings aren't the whole picture. Also the size of the room is very important. I run mine in a 12x18' room with a Luxman 590axii Class A amp which is only rated at 30 watts (8 ohms) and it plays plenty loud without strain.

The bass is incredibly good.

These speakers are £3,750

new about 4500 euro

@@soundstage_hifi7724 I have these speakers. I am buying New power amps should I sell my act scm 40s for £2000 and buy the scm actives instead? Are the actives much better than these 2?

@@fizywig Personally, I'd get the actives and will some day.

@@willbrink Hi, Can you help? My listening space measures 19.5ft (6m) long x 11,5ft (3.5m) wide x 3-4.2m high. Please advise which is the better of the following ATC speakers for all genres of music between ATC SCM19A, SCm40A and SCM40ASLT for my space. Any possible issues with overpowering bass with the 40A speakers? Thanks in advance. Reply