The <A HREF="http://www.stereophile.com/tonearms/400">Graham Engineering 1.5</A> tonearm, originally introduced in 1990, was a thoughtfully executed design that logically addressed all of the basics of good tonearm performance—geometry, resonance control, rigidity, dynamic stability—with effective, sometimes ingenious ideas, while providing exceptional ease and flexibility of setup. Over time, designer Bob Graham came up with ways to significantly improve the 1.5's performance, including the replacement of its brass side weights with heavier ones of tungsten, an improved bearing with a more massive cap, various changes in internal wiring, a far more rigid and better-grounded mounting platform, and a new, sophisticated ceramic armwand. (The original wand had hardly been an afterthought: its heat-bonded, constrained-layer-damped design consisted of an inner tube of stainless steel and an outer tube of aluminum.) The arm's name changed from the 1.5 to the 1.5t (tungsten), then the 1.5t/c (ceramic), and on to the <A HREF="http://www.stereophile.com/tonearms/401">2.0</A>, 2.1, and <A HREF="http://www.stereophile.com/tonearms/401/index7.html">2.2</A>.
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