div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Presentation2 - Davids Audioworth of preamplifier circuitry and the idea that some mysterious but very expensive process has made the purchase worthwhile SUMOs ELECTRA reveals that src=https:reader033vdocumentinreader033viewer20220606006054364907a724721e2b8b30html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: Presentation2 - Davids Audioworth of preamplifier circuitry and the idea that some mysterious but very expensive process has made the purchase worthwhile SUMOs ELECTRA reveals that src=https:reader033vdocumentinreader033viewer20220606006054364907a724721e2b8b30html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: Presentation2 - Davids Audioworth of preamplifier circuitry and the idea that some mysterious but very expensive process has made the purchase worthwhile SUMOs ELECTRA reveals that src=https:reader033vdocumentinreader033viewer20220606006054364907a724721e2b8b30html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: Presentation2 - Davids Audioworth of preamplifier circuitry and the idea that some mysterious but very expensive process has made the purchase worthwhile SUMOs ELECTRA reveals that src=https:reader033vdocumentinreader033viewer20220606006054364907a724721e2b8b30html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv