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About the DMA-100S
The Spectral Audio DMA-100S is a compact reference stereo power amplifier designed by Keith Johnson and Spectral Audio as a contemporary evolution of Spectral’s original high-speed instrumentation amplifier concept. Spectral describes it as combining technologies from the DMA-150 and DMA-90, using a proprietary "Focused Array" output stage with separate power-supply sections for each output device. It was positioned as a high-value, cool-running reference amplifier with wideband performance and very high load stability.
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