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Goodwin's High End is the oldest and most experienced Spectral dealer
in the US. We recently celebrated the 25th anniversary of our long
association with Spectral and Spectral has become our #1 selling line
here in the store. When you hear the sonic purity and sheer
naturalness of the current generation of Spectral componentry you will immediately
understand why so many people end up choosing to base their system
around their components.
 Spectral
DMA-160S Universal Power Amp
For nearly two decades Spectral power amplifiers have represented
the leading edge of audio design and advanced the art of music
reproduction. High-speed Spectral amplifiers have been instrumental
in developing high accuracy music systems in the 1990s. In the
original Spectral DMA-150 Reference Amplifier, a new level of
linearity was achieved with the marriage of high-speed fast-settling
circuitry with high-current output power capability. This
combination of signal speed and precision power results in speaker
control and resolution which are unique to Spectral reference
amplifiers.
INTRODUCING THE DMA-160S STUDIO UNIVERSAL
AMPLIFIER
Until now the matchless sonic benefits of Spectral’s high-speed,
fast-settling amplifier technology have been available exclusively in
full Spectral component systems. Now the DMA-160S Studio Universal
Amplifier brings Spectral’s high-resolution signal amplification to
critical new applications in pro-sound and reference music systems. The
DMA-160S Studio Universal has been designed as a stand-alone reference
amplifier for use in various applications in studio monitoring and
audiophile systems where a Spectral preamplifier is not available. The
stand-alone capability of the DMA-160S is achieved with an exclusive
“active buffer” input topology which can maintain optimum input matching
with high-level source components without compromising internal
bandwidth. The DMA-160S brings all the performance benefits of “the
fastest signal response in the audio industry” to bi-amp applications
and multi-amp systems as well, for a new level of musical realism.
Spectral audio components share creative uncompromising use of
edge-of-the-art technology, dedicated precision manufacture, and
experience with live sound at recording sessions. From much listening
and design experimentation, Spectral has consistently pioneered
component systems having fast settling, high-speed circuit architecture.
These have invariably outperformed more traditional often cumbersome
high-end design methods to achieve superlative detail, staging and
listener involvement. Indeed, test methodology simulating music
waveforms and hearing acuity confirm that quickness of response and
rapid signal extinction when reproducing complex dynamics are mandatory
for accurate music reproduction. Only then can one preserve
instantaneous waveform accuracy to prevent cover-up of delicate musical
signals by previous transient events. Construction and performance of
the Spectral DMA-160S Amplifier for this demanding criterion and
resulting sonic resolution are unmatched among contemporary high-end
amplifier designs.
THE “FOCUSED ARRAY” OUTPUT SECTION DESIGN
Like the renowned DMA-360 Monaural Reference, the DMA-160S utilizes
Spectral’s unique “Focused Array” output section design with powerful
ultra-fast Mega Fet devices. Each device, having vacuum tube like
operating character, is energized from its own dedicated high energy
storage capacitor, rectifier, and individually powered from an isolated
ultra-low coupled transformer winding. Individual teflon bias trimmers
are used to calibrate each output device separately. Groups of these
individual output device/power supply circuits utilize field folding
construction and electronic shielding to further impede propagation of
stray interference. The resulting “Focused Array” of individual isolated
output sections performs as one with virtually no cross-coupling and
energy storage artifacts reflecting between output devices. During
extreme program dynamics, this arrangement can launch an instantaneous
high current drive of over 60 amps per channel to the most sophisticated
loudspeakers with assured precision waveform tracing. Gone are
performance damaging magnetic and electrical field propagation problems
of conventional multiple device heavy construction. Without stray
radiation, critical small signal paths within the DMA-160S and other
sound system components can perform with lowest distortion and settle to
signal extinction in micro-seconds. Hence, the DMA-160S works with power
and speed yet behaves inert to other electronic parts of the system.
Reproduction is highly articulate and resolving yet has all the powerful
unlimited character of the best very high power amplifier designs,
giving little suggestion of its actual 175 watt-per-channel output
specification.
SPECTRAL PRECISION FOR NEW APPLICATIONS
Improvements in high-current FET technology, high-speed amplifier
topologies and power supply systems are combined in the DMA-160S Studio
Universal Amplifier to successfully advance the art of amplifier design.
Until now, amplifiers could not offer both powerful speaker control
capabilities and the sonic transparency and life possible only with
high-speed, fast-settling circuitry. Breakthrough circuits backed by
Spectral experience have now brought together the necessary combination
of speed, accuracy, control and stealth. The DMA-160S Studio Universal
Amplifier advances the Spectral tradition for musical resolution and
sonic holography. Now the remarkable sonic sophistication and
uncompromising precision which are unique to Spectral high-speed
amplifiers are finally available for a wide array of new musical
applications.
| All information and
specifications provided herein are subject to change owing to
the evolutionary nature of Spectral designs and technology.
All Spectral products are covered by a three-year limited
warranty for parts and labor. Please see warranty for
complete details of coverage. |
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