I am using an Origin Live Silver Tonearm with my Shelter 501, and it is a great match. The OL arm is alot like the Shelter, in that they are both really great values for the money.
I personally think that there is no arm under $1k that can touch it. There aren't really many arms under $3k that can.
I personally think that there is no arm under $1k that can touch it. There aren't really many arms under $3k that can.