preamplificatore musical fidelity m6 preM6s PRE stereo preamplifier The M6s PRE is effectively a preamp without limits. Its wide range of inputs, coupled with superlative performance, mean it can form the heart of almost any system, regardless of price. It's a pure Class A design capable of driving any power amplifier, over any length of cable. It itself is easy to feed, making it even more flexible. The M6s PRE has an array of inputs suited to both traditional and modern music sources. It