IWISTAO BLOGGER : IWISTAO Mono FU50 Tube Amplifier Singal-ended Small 300B with dual 6J4P Preamplifier

Saturday, December 8, 2018

IWISTAO Mono FU50 Tube Amplifier Singal-ended Small 300B with dual 6J4P Preamplifier

The unit used the power tube stage FU-50 (or rY-50), it is an original high-frequency emission control, her sister possession of the same series is famous 805 (FU-5), 807 (FU-7), 845 (FU-45), 813 (FU-13) and so on. After it is transplanted to Hi-Fi stereo, its middle and high frequency is transparent bright, airy, grainy good. When connected to a triode connection output, frequency response curve is closer to the famous king tube 300B, so called "small 300B". Suitable for the performance of the human voice, strings and so on. This tube looks simple, but was called extraordinary refined, is also being used in multiple tube amp manufacturers product.

This mono FU50 tube amplifier is positioned as a desktop sound system, which adopt a power adapter as power supply to save the space and reduce the weight to compare the traditional tube amplifier.

Whole casing of the power amplifier adopted aluminum alloy chassis and wooden panel, large gold-plated output and input terminals; mono design with class A single-ended output, the sound is bright and warm. And its preamplifier used 2pcs 6J4P that can be replaced by tube 6H4C, 6AC7.

The actual listening experience, sound neat, vivid and elegant, thick warm quality! High frequency delicate and elegant, quite expensive! Midrange sweet round, warm, aura! Low-frequency strong, dive deep, Tri-band balance, have strong tube taste, reduce grinding most of the digital sound, so that the sound more rounded and it don’t tire to listen sound.

More details, please visit https://www.iwistao.com/products/iwistao-1pc-mono-tube-amplifier-fu50-power-stage-class-a-signal-ended-small-300b-12w-preamplifier-2-x-6j4p-hifi-audio?variant=42938228748