Carver C1 USA Made Förförstärkare High Fidelity Controll Console. Sonic Holography Preamplifier At the heart of the C-1 is a high-performance console preamplifier with precise RIAA phono equalization for moving-magnet and moving coil cartridges, extremely low noise and distortion, high slew rate, wide dynamic range, and a high degree of control flexibility. The built-in Sonic Hologram generator distinguishes the C-1 from all other fine preamplifiers, breaking through the limitations of listening room acoustics and the conventional two-channel stereo medium itself to provide remarkable three dimensional you are there realism, with a sonic image which extends far beyond the loudspeakers in breadth and depth.