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Marantz MA-9S2 review
We began with the historic Model 9. We improved that distinctive voice with
the MA-9S1. And now we present the MA-9S2 as the latest step in our
relentless pursuit of sonic accuracy. It defines new horizons in both
musical performance and contemporary elegance.When you first see the
MA-9S2, you’ll be impressed with its clean yet purposeful look. The
35mm-thick aluminum chassis and double-layer bottom plate forms an
extraordinary rigid structure. Copper coating isolated delicate internal
circuitry from extraneous interference. Power output is the same (300 watts
into 8 ohms, 600 watts into 4) as that of the MA-9S1. This "double
down" capability speaks directly to the MA-9S2’s current
delivery prowess and, consequently, its ability to absolutely control any
loudspeaker. Although this "brute force" approach might be
adequate for some, the S2 incorporates several advances designed to further
improve sound quality. First, consider the power supply. The toroid power
transformer benefits from a newly-developed "dual hemisphere"
design with acoustical isolation augmented by silicon steel and a damped
aluminum case. This greatly reduces internal vibration and sets the stage
for finer resolution of sonic nuances. Shottky barrier diodes provide
rectification for the voltage amplification stage to eliminate subtle
ripples that can negatively impact overall clarity. Finally, the storage
capacitor bank so important for the current amplification stage is 50%
larger than that used in the S1 for even more prodigious yet superbly
controlled bass response. In addition to fully balanced differential
topology, the S2 uses current feedback implemented with six HDAM-SA modules
for faster response and lower noise. Flexibility is a key element in the
MA-9S2’s appeal, too. Three switchable inputs (two single ended, one
balanced) complement the biwire-capable WBT speaker outputs. The
high-precision power meter lets you keep tabs on the amplifier. Or you can
switch it off completely for concentrated listening. All in all, the S2 is
a textbook example of meticulous engineering. As did the original, this
contemporary masterpiece redefines the art of audio amplification. For
operational and technical assistance 24/7, use our self help Online Support
Center, where answers to many common questions can be found.View Warranty
information..
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