IWISTAO Blog is the official platform of IWISTAO HIFI MINIMART, dedicated to high-fidelity audio and DIY electronics. We focus on tube amplifiers, output and power transformers, speaker enclosures, and Bluetooth audio technologies, including HiFi Bluetooth speakers, headphones, and tube-based acoustic systems. The blog shares product insights, technical knowledge, and practical guides for audiophiles and audio builders worldwide.
Wednesday, June 2, 2021
IWISTAO Tube Amplifier Mono-block Integrated West Electric Master 2x8W Vacuum Tube 6F3 Drive 300B 5Z2P Rectifier
Thursday, May 27, 2021
IWISTAO FM LA3401 Single Decoding Board
IWISTAO FM Single Decoding Board Mono to Stereo LA3401 Connect Intermediate Frequency Amplifier
The LA3401 is a multifunctional MPX demodulator IC designed for FM stereo electronic tuning. It features the VCO non-adjusting function that eliminates the need to adjust free-running frequency of VCO and the accessory functions such as FM/AM input, FM/AM input changeover, muting.
This LA3401 FM decoder board use audio advanced components, the effect is good. You can use it to decode the mono single from the tube intermediate frequency amplifier board to stereo one.
This board kit is suitable for retrofitting radios, radio frequency plus stereo.

