Sigma SSP

About the Sigma SSP

The Classé Sigma SSP is a 7.1-channel surround-sound preamplifier/processor designed to combine high-quality two-channel playback with home-theater processing. It provides seven channels of RCA analog output, with balanced XLR outputs for the front left and right channels, plus balanced and single-ended analog inputs. Digital connectivity includes seven rear HDMI 1.4 inputs, one front HDMI input, and one HDMI output, supporting 2D and standard 3D video up to 1080p but not 4K/UHD. The SSP supports Dolby TrueHD, Dolby Digital Plus, DTS-HD High Resolution, and DTS-HD Master Audio, but not newer immersive formats such as Dolby Atmos or DTS:X. It also includes asynchronous USB audio, coaxial and optical digital inputs, Ethernet networking, and AirPlay/DLNA streaming. Signal-management features include bass management, per-channel parametric equalization, digital tone controls, and an analog bypass mode for two-channel listening; it does not provide automatic room correction. The front panel includes a touchscreen display, rotary volume control, front HDMI and USB connections, and a headphone output. The chassis measures approximately 433 × 370 × 95 mm. This original Sigma SSP should be distinguished from the later Sigma SSP MkII, which added support for Dolby Atmos and DTS:X.