Conrad-Johnson LP140M

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The Conrad-Johnson LP140M is a high-performance phono preamplifier designed to enhance the sound of vinyl records played on a turntable. It was introduced in 2004 as a follow-up to the highly-acclaimed LP140, but with several significant improvements.The LP140M includes a number of innovative features that aim to deliver unmatched sound quality, including:1. Fully-balanced design: The LP140M uses a fully-balanced signal path in both the RIAA equalization and the output stage to minimize noise and maximize signal purity.2. Dual-mono power supplies: The LP140M features two completely separate and regulated AC power supplies - one for the input/phono stages and another for the output stage.3. Custom-designed transformers: The LP140M uses high-quality, audiophile-grade transformers to achieve a smooth, detailed sound.4. Low-noise voltage regulator: The LP140M utilizes a low-noise, high-stability regulator to provide stable and clean power to the audio circuitry.5. Onboard RIAA equalization: The LP140M features a high-precision, high-stability RIAA equalization stage to ensure accurate, detailed reproduction of the audio signal.6. Input sensitivity and loading adjustments: The LP140M includes step-adjustment switches to allow precise control over input sensitivity and loading values, making it compatible with a wide range of phono cartridges.The LP140M has received critical acclaim from audiophiles and reviewers alike, as it offers exceptional performance across a wide range of musical genres. With its high-end features and exceptional sound quality, the LP140M is a top-of-the-line choice for vinyl enthusiasts who demand the very best in phono preamplification.

Power Output: 140W (mono)
Frequency Response: 20Hz to 20kHz
Distortion: 1.5%
Speaker Impedance: 4 to 16Ω
Input Sensitivity: 0.6V
Signal to Noise Ratio: 102dB
Dimensions: 16 x 19 x 6.38"
Weight: 53 lb
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