Acoustic Research XB1
2-Speed Belt-Drive Turntable
The National Association of Broadcasters specifies that turntables used for broadcast work must meet certain standards in performance and dimensions.
The AR XB1 meets these standards, except for starting time, including the tolerance limits of the center spindle, which are +0, -0.0005", with a nominal diameter of 0.2830".
Some records have center holes smaller than specified by industry standards, and there may be a few which are tight on the spindle of the turntable.
This can usually be fixed by inserting and twisting the point of a pencil in the center hole to remove any scraps of plastic material left after moulding.
With A/C synchronous motor. Introduced in 1972
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Acoustic Research XB1 / XB 1 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Acoustic Research.