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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The VK-3i is a fully balanced stereo tube line-stage preamplifier. Its non-inverting circuit uses four 6922 tubes and two 6V6 tubes, with stepped volume attenuation using Vishay resistors and 18 dB of gain. It provides balanced and single-ended connections; an optional solid-state phono stage and remote-control module were available. The phono option occupies one RCA input.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The GFP-750's signal-to-noise is 102 dB against the VK-3i's 100 dB, its thd 0.025% against 0.010%, its output impedance 1200Ω against 1000Ω, and its output voltage 1.0V RMS against 40.0V RMS.
Both turn up in the same documented systems.
The 28K's thd is 0.040% against the VK-3i's 0.010% and its weight 7 kg (15 lbs) against 13.6 kg (30 lbs). Both share signal-to-noise (100 dB) and input impedance (10Ω).
The KPA-1's signal-to-noise is 77 dB against the VK-3i's 100 dB, its thd 0.050% against 0.010%, its output voltage 7.5V RMS against 40.0V RMS, and its input impedance 47Ω against 10Ω.
The 114's signal-to-noise is 98 dB against the VK-3i's 100 dB, its thd 0.020% against 0.010%, its output voltage 10.0V RMS against 40.0V RMS, and its output impedance 220Ω against 1000Ω.
Bryston BP-20
Forte Audio Forte F-44
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