24-05-2017, 10:16 PM
(22-05-2017, 01:01 PM)martk Kirjutas: Mu meelst on veel huvitav, kus kirjutise autor arvab:
...Cartridge to pre-amplifier matching has a much more significant effect upon reproduction than does the achievement of perfect RIAA equalisation ...
Ja teeb seda pöördkondensaatori ja muuttakistiga.
Ning madaldab bassiosa:
....The original RIAA characteristic was, *is*, sub-bass weak, with a low frequency roll-off that introduces notable bass phase distortion.
For this reason I extended the low frequency equalisation to 25Hz instead of 50Hz....
http://www.zen22142.zen.co.uk/Circuits/Audio/vinyl.htm
Selles skeemis tekib küsimus - kas potekad töötavad nii madalal nivool normaalselt. Pole voolu ega pinget. Ilmselt peaks VÄGA kvaliteetne pote olema.