Douk Audio H5 21 August 2026 in homepage, reviews, amplifiers TAGGED IN : Douk Audio , tube-preamp , preamp , phono , vinyl , subwoofer Rating: ★★★★★ A $90 tube preamp with an MM phono stage, bass and treble controls, a 20Hz rumble filter and a filtered subwoofer output — the most tuning options I have seen in a tube buffer at this price.
