Audio Research is pleased to introduce the Foundation Series. From the same engineering and design team responsible for the award-winning Reference Series, the Foundation family of vacuum tube components has been created to provide incredible musical experiences. Spatial definition, dynamics and detail abound while providing the most natural musical experience.
The first three components include the LS28 line stage preamplifier, the PH9 phono stage, and the DAC9 digital-to-analog converter. A new amplifier will follow, with other products to complete the series. All models will be available in both black and natural anodized aluminum finishes. Each unit comes with its own custom metal remote control.
Since 1970, High Definition has been more than our trademark; it has been our guiding principle for all products. The Foundation Series continues this passion and philosophy, offering the listener stunning playback, great value, and unparalleled long-term support.
+/-0.15dB 20Hz – 20kHz; +/-3.0dB 6Hz – 192kHz.
Less than .002% at 2V RMS 1kHz Balanced output.
SIGNAL TO NOISE
IMD + NOISE
.001% (SMPTE ratio)
Power, Menu, Option, Enter, Input, Mute.
500 Ohms balanced, 250 Ohms SE.
Selectable Fast or Slow algorithms.
All Inputs upsample to 384kHz.
USB2.0HS 44.1 to 384kHz, DSD, 2xDSD; RCA, BNC, XLR 44.1 to 192kHz; TOS 44.1 to 96kHz.
3.8V RMS Max Balanced; 1.9V max SE (@ 0dB input).
Electronically-regulated low and high voltage supplies. Line regulation better than .01%.
(2) 6H30 dual triodes.
100-125VAC 60Hz (200 – 250VAC 50/60Hz) 60 watts maximum.
Less than 2 watt.
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