| Following upon the technical changes that have been so successfully received in the MKII version of the REF300 monoblocks, similar changes have now been made to the design of the REF600 model. The resulting improvement in sonic performance is, if anything, even more dramatic in the 600-watt flagship model.
As in the REF300, the REF600MKIII has been refitted with new audio and power-supply circu... [more]
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When the Reference 600 Power Amplifier was introduced in 1995 it set a new standard for High Definition® in music reproduction. In every meaningful category, the Reference 600 - 300 amplifier series remained at the pinnacle of audiophile performance. Now the REF600-300 legacy continues with a new flagship from Audio Research: the Reference 610T monoblock.
Like its pr... [more]
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The Reference 750 SE monoblock amplifier continues the story begun 20 years ago with the introduction of the Reference 600; that is, to create the ultimate, tube-driven amplifier with enough power to drive any speaker load and to provide a musical experience unlike any before it. The Reference 750 SE redefines all expectations of what is possible from an amplifier in a music playback system.... [more]
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First, you will notice a more modern, monochromatic appearance, including a new front panel with a small aluminum power button: natural units include silver handles and top cover, while black units come with black panel, handles and top cover. A new analog meter replaces the vacuum-fluorescent digital display of its predecessor; this illuminated meter is capable of displaying power output, line... [more]
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The appearance is more refined and attractive, but is clearly a statement piece from Audio Research. A new, optional 12V fan-cooled silver top cover is available at additional cost. Using the now-standard KT120 output tubes (8 matched pairs, driven by another matched pair) in the classic Audio Research push-pull Class AB output stage, the input stage has been streamlined, using very low ... [more]
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Its purpose is to provide the differential signal for true balanced operation, a first for this series. With both balanced and single-ended inputs (switch selected), the VM220 will be compatible with every Audio Research preamplifier. In addition, the VM220 uses a super-wide-bandwidth output transformer to provide better frequency extension, explosive musical dynamics, and more powerful bass ex... [more]
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| The Valve VTM200 vacuum tube stereo power amplifier is the most powerful of the three Valve-series models. Rated at 200 watts per channel into a wide range of speaker loads, the Valve VTM200 encompasses a "dual mono" circuit layout reaching back to the massive single power transformer. Eight matched pair of 6650C output tubes and 674 joules of distributed energy storage give the Valve VTM200 unwav... [more]
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