Conrad-Johnson PV-4

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The Conrad-Johnson PV-4 is a high-end vacuum tube preamplifier designed for audiophiles seeking a rich, detailed, and engaging listening experience. Here are some of its key features:1. Tube technology: The PV-4 uses a pair of premium JAN (Japanese Military) 6922 tubes in the input stage, followed by a single 12AX7 in the driver stage, and a 5687 in the output stage. This tube configuration delivers a natural, dynamic, and musical sound that's hard to find with solid-state components.2. Passive volume control: The PV-4 employs a stepped attenuator with a low-feedback, passive design for ultra-low noise and distortion. This approach preserves the integrity of your source signals and offers a sense of transparency that's highly prized by audio enthusiasts.3. Fully balanced circuitry: The PV-4's fully balanced topology features an active balanced input stage, followed by a static voltage amplifier, and a common-emitter driver stage. This circuitry delivers a higher signal-to-noise ratio, improved separation between channels, and a more three-dimensional image of instruments and voices.4. Hand-built construction: Each PV-4 is hand-built in the USA by skilled craftsmen, using the highest quality components and rigorous testing procedures. The result is a preamplifier of unparalleled quality and performance.5. Advanced options: The PV-4 offers several advanced features, including a phono input stage that uses a pair of JFETs and discrete components for ultra-low noise and micro-depth tracking capability. It also features adjustable loading for MC cartridges, and a useful "mute" feature that lets you temporarily silence the music while switching components or making a phone call without needing to use your preamp's remote control.In summary, the Conrad-Johnson PV-4 is a top-of-the-line vacuum tube preamplifier that combines exceptional sound quality, build quality, and smart features to delight even the most discerning audio enthusiast.

Preamp Output:
Frequency Response: 2Hz to 100kHz
Distortion: 0.1%
Gain: 38dB (mm), 18dB (line)
Input Sensitivity:
Signal to Noise Ratio: 70dB (mm), 84dB (line)
Line Output:
Dimensions: 13 x 9 x 4"
Weight:
Year: 1983
Price: