The CA2 preamplifier is designed as the front end for ATC active speakers, and with an appropriate power amplifier, passive loudspeaker systems.
The ATC CA2 preamp features 4 line-level stereo inputs, a high sensitivity phono amplifier input, and a tape monitor input on RCA phono sockets, one stereo record output, a main stereo output and a sub output on RCA phono sockets, together with a main stereo output on XLR sockets and a headphone output on a ¼ " jack socket. The phono amplifier stage carries an array of slide switches that enable optimal matching to phono cartridges of various output voltages and load requirements.
Selection of CA2 inputs is achieved via a five position rotary control using goldplated relays or silent switching. Output volume adjustment is achieved through a precision motorized potentiometer. The tape monitor function can be selected from a front panel push button. The tape output is a duplicate of the source selected by the input selector. Standby is also accessible from a front panel push button. Mains power is applied from a rear panel mounted switch.
All CA2 functions are duplicated on the ATC SCAR-B remote handset.