Technology For the CALA® receivers T A has developed an ingenious fully digital design principle which performs the entire signal processing in the digital domain. This provides a crucial improvement in sound quality, since it eliminates the need for the additional conversion of digital sources; all the data processing is carried out consistently in HD audio quality. The CALA® is a versatile, fully featured receiver with a great performance, and this is only possible through the use of the latest technologies and components. All the audio signal processing is carried out by a high-performance digital signal processor which generates the sound fields for various set-up conditions and virtual surround, controls – where necessary – all the tone settings and cut-off frequencies for the primary loudspeakers and sub-woofer (bass management), processes and controls the output signals for the speaker channels, and converts the two analogue inputs into digital data, so that these can also be processed digitally. The integral amplifiers are based on high-speed bridged switching output stages with high continuous power and current delivery capacity. Their output is sufficient even for large loudspeakers and spacious listening rooms. A mains section which is very stable under load makes ample energy available at all times. Naturally a sophisticated protective circuit monitors all the machine’s operating states.
