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Original Message
RE: For non-DJ buyers...
Posted by flood2 on January 2, 2017 at 15:50:55:
That is the exact configuration I would have liked to have seen too - make the arm optional for those who want or already own an arm of their own choice.
Incidentally, there is no measurable evidence of cogging with the SL1200. The silent groove spectral analysis from my recordings shows no evidence of cogging. The only notable frequency components that pop through are plinth and arm resonance related with arm/headshell related resonances around 230Hz - the effect of which is more or less pronounced depending on cartridge compliance.
In fact the vintage non-quartz locked SL-150 reviewed in HFNRR (Oct 2015) had an extremely clean W/F spectrum with a very sharp clearly defined peak with a peak wow of 0.02% and peak flutter of 0.03% and Paul Miller noted "....there are no cogging artefacts to sully the rumble or W&F spectra." I don't know about the SP-10, but it appears that the Technics engineers had solved the cogging issue back in the late 70s.