Website:https://atc.audio/
Est. year: 1974
The subwoofer is equipped with a 12” woofer (SS75-314SC) of its own design and an AB-class discrete amplifier. It also has the ability to turn off/on remotely using a series-connected footswitch with a lock, without affecting the through connectors of full-range monitors (footswitch is supplied separately).
The ATC C1 Sub Mk2 is powered by a 200W Class A/B MOSFET power amplifier in a common source circuit with a new enlarged power supply section. This combination allows the ATC C1 Sub Mk2 to achieve very low bass of 25 Hz (-6 dB) while maintaining the highest sound quality.
The ATC C4 Sub Mk2 is equipped with a patented 12-inch driver and amplifier operating in class A/B and developing 300 watts.
The subwoofer received a 375 mm driver and a powerful amplifier capable of producing 450 watts at the output.