Excellent Pair of S1 Mk1 here is an independant review The S1 has replaced the main reference loudspeaker (ATC SCM-50PSL) and was driven by a Parasound HCA3500 power amplifier. Rest of the system included a Teac Esoteric P70/D70 transport/DAC pair, and a Melos Plus Series Line tube preamplifier. Initial setup was rather easy since S1 is a loudspeaker that requires an area of limited dimensions. For most of the review process, S1 was placed about half a meter from the rear room boundaries and around 2.8 meters from the listening position. The two loudspeakers of the pair were also about 2.8 meters apart. The adjustable spikes are very easy to use and allow for rapid leveling of the loudspeaker, while the user can also give some small inclination if the listening position requires so.
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