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SR2 Owners Manual Rev 0.2
2
The “SR-2” (second Son Of Rushmore) loudspeaker is Pass
Laboratories third entry into the often-confusing world of
loudspeakers, a world fraught with claims of new technology and
brilliant technological breakthroughs. Pass Laboratories claims no
inclusion of special technology in the SR-2, only Nelson Pass’s
meticulous attention to detail, a strong commitment to using the
finest available parts and the love of experiencing the finest in
recorded music in your own environment.
The first Pass Labs loudspeaker was “Rushmore” a no compromise
system built around what we sincerely believed were the finest,
high efficiency drivers available anywhere in the world. Those
drivers were mated to four purpose built class A amplifiers,
electronic crossovers and level controls into a self contained, all
encompassing package.
Rushmore was an uncompromising product that relied on us, the
maker, having complete control over all aspects of the listening
chain with the exception of the source and material.
The Rushmore aimed for high dynamic contrast and control with
very low distortion. This was achieved with the finest quality
“strong motor” drivers intimately coupled to single-ended Class A
amplifiers. The result was a stunning display of clarity and
dynamics.
Realizing that many customers already have favorite electronics or
appreciate the opportunity to choose and substitute electronics and
cables as their preferences change. Pass Laboratories set out to
design a new family of passive speakers that would accommodate
a wide variety of customer owned electronics with as little