About a week ago I received a special package from ddk. In it were two items critical to my new turntable: a cartridge he suggested I try, and some special thread to use to drive the AS 2000 platter. I installed the thread when setting up the turntable. Based on my belt/floss/thread experiments on the AS1000, I knew that I wanted thread drive for my new table. David had tried quite a few alternatives and preferred one particular thread. He then tried different thicknesses. He settled on one based on his listening tests. He sent me enough for two or three replacements. After some trial, I figured out how to install it. I then played with different thread tensions and found one that sounds best. What a nice solution to the problem of spinning the platter with minimal influence from the motor.
The cartridge turned out to be a NOS Ortofon SL-15. The sample he sent me is the later version and the most rare. I do not know how he managed to find one that is new, sitting in the original box, unplayed for all these years and with the original packaging and paperwork. It is simply incredible. I very carefully installed it this morning and listened for about three hours. Within a few minutes, I knew that this cartridge is special. David told me that it has been sitting for sixty years, so with some playing time, it would open up a bit more and sound even better.
It has an ultra low output of 0.04 mV, so it comes with its own small transformer. I installed it with the transformer plugged into the MM input of my Lamm phono stage. I will also try it without the external transformer by using the MC input. This will really just be a comparison between the internal Jensen transformer in the Lamm, and the external Ortofon transformer.
The cartridge sounds similar to the vdH Colibri Elite, but just a bit more natural. It has slightly less ultimate resolution, perhaps 5%, but it makes up for it with slightly more beautiful tone and more weight. The Colibri presents hall ambiance and subtle spatial cues better than any cartridge I have heard, but it is just slightly thin sounding compared to this Ortofon and to the Neumann I heard in Utah. These vintage cartridges are just so beautiful sounding. Drums, bass, tubas, woodwinds all have a mass, a heft, and body that the vdH just misses. Voices are more solid. It is a very difficult thing to describe, so I fall back on the word "natural". But unlike the turntable comparisons I did recently, these cartridges are not different levels or degrees of natural, they are simply slightly different perspectives on natural sound, perhaps a bit like Tang's EMT 927 and the AS2000. They are just slightly different and at this point, I am not sure which I prefer. I am glad to have two tonearms.
It will be interesting to see how these two different cartridges grow on me. They are by far my favorites of all the ones that I have had in my system over the years. I can not thank David enough for this gift and for introducing me to this world of very special vintage cartridges. My speakers and this Ortofon are both from the 1960s, about as old as I am. It makes me wonder just how much progress has been made in all these years. Their designers really knew what they were doing, and they hold up still today.
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