Musical Fidelity AMS Primo line preamplifier
Musical Fidelity's Tri-Vista kWP, introduced in 2003, was an impressive, high-tech, "statement" audiophile preamplifier. Its outboard power supply weighed almost 56 lbs—more than most <I>power</I> amplifiers—and its hybrid circuitry included miniature military-grade vacuum tubes. As I said in <A HREF="http://www.stereophile.com/solidpreamps/104mf">my review of it</A> in the January 2004 <I>Stereophile</I>, the kWP's chassis and innards were overbuilt, the measured performance impressive, and any sonic signature imposed on the signal was subtle and, essentially, inconsequential.