WOLF VON LANGA SON
https://ear.hu/?p=10499
"And the other one, I'd take it home now, was also coming from an electromagnetic speaker. This is WOLF VON LANGA SON. I heard this at colleague carbon4copy's place and now in the AIR TIGHT room, where I entered, Whole Lotta Love was spinning on the turntable. Now that's some real neck-snapping music. The song is brilliant, but it's very hard to tell what the hi-fi chain is doing with the lavors of distortion we hear, and what were Greta Van Fleet and Jimmy Page doing in the studio? It took two minutes for the system to convince me that what I was hearing was all Led Zep and nothing by WOLF VON LANGA and AIR TIGHT. Of course, I know that on paper this can't be true, since a triode tube and a 30 centimetre bass (mid?) divide at 2 kHz can't do that, but I was convinced. And for about 20 minutes afterwards, and when I went back three times.
When WOLF VON LANGA himself appeared, I simply had to give him a treat. He was lovely, we had a surprisingly long chat on the hi-fi. He told me that he had been drawn into the world of electromagnetic speakers by a Voigt speaker that had become part of his hi-fi collection. He told me about how he realised that the wideband sub-genre was not his thing. How he found out which measurements were informative, how they reflected or even masked the reality of what we were hearing. About how, by designing the suspension, you can tune the speaker over a wide range - even thinking ahead to crossover. About how few places make iron pure enough to be a suitable electromagnet. How you can fine-tune the sound with the power supply. And even, with a subtle smile, that before the show I thought the SON was a big, flashy and expensive speaker, but here it turned out to be a modestly priced little thing that could easily fit into any environment.”