Logic Datum
Gimbal bearing tonearm developed with Syrinx and later by Manticore.
Description
Designed to operate with cartridges of widely varying mass and compliances, making it equally suitable for both moving-magnet and moving-coil types.
Variants include the improved Datum II and the top of the range Datum S with specially selected bearings, Tungsten counterweight and silver wiring.
Specifications
Effective length: 228mm
Effective mass: 9.5g (14g II/S)
Overhang: 17.3mm
Bearings: precision ball race
Headshell: fixed, standard 12.7mm mount (azimuth adjustable on II/S)
Fixing hole diameter: 30.5mm
Height: adjustable
Finish: hard anodized black
Weight: 500g (II), 550g (S)
Arm lead: 1.55m plug in
Review
The Logic Datum provided a good, competitive sonic standard. The bass was pretty firm and even, with good detail, and while a touch of nasal colouration was apparent in the mid register, this was well controlled. The treble was better still, being well balanced and showing good detail - £75 HiFi Choice 1984
Downloads
S flyer (en)
mkII flyer (en)
flyer (en)
template (not to scale) (en)
instruction/owners manual (en)
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Logic Datum 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 copyright the Vinyl Engine and provided under strict licence. Reproduction for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Logic.