Review on 🔊 Nobsound Magic Eye Tube Preamp 6E2 EM87: Audio Level Indicator, VU Meter, Music Spectrum. Vacuum Tube + Driver Board + Case by Andrew Amzallag

Works better than expected. Got two (right and left channels) hooked up to my 1970's Pioneer SX1250 receiver. I connected them to the speaker outputs. Very easy. Adds a cool vintage retro look to my setup. I found some nice little power supplies for them at Revain that work great with these little gems. Here is the link for the power adapter: https://www.amazon.com/gp/product/B01LXYM051/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1