The PR 100 is a dedicated preamplifier with surprising performance in this price class. Designed to offer musicality and accuracy that Atoll Electronics are know for. Delivering its preamplification in Class A means that dynamics and details are replicated with ease. Mating the PR100 to an Atoll amplifier will yield surprising results especially considering their conservative price points. The attractive chassis is loaded with dedicated home theater bypass, 2 preamp outputs, four inputs and tape. Expanding the PR 100 is easily achieved by adding phono or SPIDF inputs via the optional P50 MM or P100 MM/MC modules or the SPIDF input board; offered at very generous price points.