In the digital mode, the SP 2 automatically detects the digital input signal, routes the signal through the DSP module, and adjusts to the appropriate mode. The digital circuit provides decoding for Dolby Digital, Dolby Prologic, DTS and THX formats, in 5.1, 6.1 and 7.1 channels. There's also Mono and Stereo Down-mixing for all modes, Bass Management modes for all speaker setups.
The SP 2 puts you in control of a full range of input/output options, allowing a choice of 13 sources, with 6 digital inputs (4 - coaxial & 2 - TOSLINK; pro model, AES/EBU - 12 sources), 6 stereo analog inputs, and a set of 6 inputs for a 5.1 analog output DVD-AUDIO player. A Digital toggle button lets you switch easily between digital and analog input signals, and there is a built-in 24/96 D/A processor. The SP 2 provides both unbalanced outputs (RCA) and a set of 6 true balanced outputs (XLR) for 5.1 and stereo, each with its own discrete output amplifier. Balanced signal transmission uses com-mon- mode rejection to prevent induced hum and interference even with long cable runs.