The SME 3012-RG is a tonearm made by SME Limited, a British manufacturer of high-end audio equipment. It features a removable headshell and adjustable tracking force and azimuth. The 'RG' in the name likely refers to the use of a ruby bearing for improved tracking accuracy.

The SME 3012-RG is a tonearm made by SME Limited, a British manufacturer of high-end audio equipment. It features a removable headshell and adjustable tracking force and azimuth. The 'RG' in the name likely refers to the use of a ruby bearing for improved tracking accuracy.