![]() The newly designed ATC 25mm dual suspension soft dome tweeter is housed in a precision alloy wave guide, midrange is taken care of by the ATC designed and built 75mm soft dome midrange driver which looks the business and defines the look of their speakers, then you have the 164mm bass unit with an oversized dust cap completing the package, all of the drivers have massively optimised magnet assemblies which mean they can withstand some serious abuse from the volume dial without even breaking a sweat. The amplification section of the speakers are made up of 242 watt class A/B amplifiers with 32watts dedicated to the tweeter, 60watts for the midrange unit and with the bass driver getting a healthy 150watts to drive it, so each drive unit has its very own mono block driving them, consider the cost of buying 3 x mono blocks separately to power each speaker and you soon realise what a bargain these speakers actually are. ![]() Active speakers has always been a bit of shy point when it comes to HiFi but in fact it makes a lot of sense as the speakers amplifiers are designed and built by ATC to get the best out of there own speakers plus you don’t have the box count and decisions on what amps to choose that usually comes when powering a three way design like the SCM40’s, instead you get carefully matched active crossovers with amplifiers built to get the best from each of the three drive units in the speaker enclosures.Īs expected the build quality of the SCM40A’s is exceptional with beautifully curved cabinets which also help to negate any internal standing waves and with heavily braced cabinets mean they weigh in at a hefty 36Kg per speaker therefore they arrived in there very own flight cases, although on wheels they proved extremely challenging when trying to get them into my humble abode. Most importantly all of their components are designed and made in house which makes production an easier process as you are not relying on third party components to manufacture. With five decades of experience in the world of speakers they are renowned for the quality of their drive units and in particular in the PRO Audio world where they are used by some of the biggest names in the industry like Sony Music and Telarc.
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