A phono preamp with equalization selector
Hi all,
what do you think about the record equalization selector? I have several Deutsche Grammophon records from the '70. A friend noticed me they should be played with Teldec equalization plus inverted polarity, features that my phono preamp doesn't have. I know this is typical issue if you have old records (60-70s and before). What do you think? Do you agree? If so, which machine may you suggest me?
Thanks!
R
@elliottbnewcombjr Use the 78 EQ when playing 78's; that and the right stylus should help with surface noise. There are not many LPs from the 1940s, but I suspect you would have to check on the back of the jacket to see what EQ was used. By 1956 most had gone to the RCA Orthophonic (RIAA). As pointed out earlier, Columbia was a late comer but was entirely RIAA by the stereo era (stereo mastering systems were only supplied with RIAA equalization). |
@elliottbnewcombjr Nice piece! Take another look at that front panel. The EQ curves were very much standard by then. 'NAB' is a tape equalization. RIAA and the 'RCA Orthophonic' curves were pretty much the same thing; RIAA being for stereo. AES and LP were two alternate mono-only curves and the '78' curve was an approximation of the most common 78 curves of which there were quite a few. |
