The Stanton "Collector's Series 100" cartridge

[E-Stat]

I loved the Sonus and ADC XLM MK ll cartridges. The Sonus I had might have been a Sonus Black or a model that was not as compliant as the Blue.

I think you're right. The Black series came later and was more like the Green in that regard. The challenge with all of Pritchard's most compliant designs (>50 cm/dyne) was they needed an exceptionally low mass arm to work optimally. The popular SME 3009 S2, for example, was considered a "low mass" arm, but was not the best match for them. Most generic Japanese "S" arms were not well matched either. You really needed an Infinity Black Widow or a Vestigal.

The OM 20 sounds more dynamic but that may be a sign I need a better phono pre-amp.

I suspect you are not hearing the full capabilities of your Benz.

rw