My Duelund Loudspeaker purifiers I had taken the year off for I had a bad accident on the ice had to have a cervical fusion .my purifiers are built Excactly to youurLoudspeakers ohms rating and impedance curve that’s the Big difference tom
stein , and less loss by using theWorlds best Duelund capacitors land resistors in Mundorfs Ultra Copper foil resistors it’s a great combination .i have sold3 x as much in Europe where I used to own a Audio Store. My product works they are custom built to your specs my feedback on these speaks volumes.