Audio Research Reference 300 (mkI)

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The Audio Research Reference 300 (mkI) is a high-performance tube integrated amplifier and preamplifier introduced by Audio Research in 1989. It is widely considered to be one of the best tube amplifiers ever made and is still highly sought after by audiophiles today. The Reference 300 features a fully balanced topology with seven 12AX7A tubes in the preamplifier stage and four 6H30 tubes in the power amplifier stage. It has a generous 165 watts per channel into 8 ohms and can drive difficult loads with ease. The amplifier also includes several advanced features, such as a double-C-core custom-wound output transformer, a parallel bass circuit, and a balance control that allows for flexible, wide-range adjustments.In terms of sound quality, the Audio Research Reference 300 is renowned for its detail, clarity, and smoothness. It has a rich, full-bodied midrange, a detailed and extended high frequency response, and a deep, powerful bass. It is able to handle a wide variety of musical genres with skill and precision.Overall, the Audio Research Reference 300 is a true classic and a benchmark for tube amplifier design. Its combination of technical sophistication, sonic quality, and timeless aesthetics have earned it a place among the most iconic audio components ever created.

Power Output: 280W (mono)
Frequency Response: 0.5Hz to 160kHz
Distortion: 1%
Damping Factor: 11
Speaker Impedance: 1 to 16Ω
Input Sensitivity: 1.75V
Signal to Noise Ratio: 110dB
Dimensions: 483 x 267 x 597 mm
Weight: 59.9 kg
Year: 1999
Price: