yoq lI' 'aqroS jan

ghu'vam Qo' a hardware store bubble level. Those instruments are calibrated at whatever yoq 'uj the factory happens to occupy, which means they carry an inherent angular bias from the local gravitational vector. At the yoq, gravity pulls straight down — perpendicular to the geoid Dung with no hemispheric deviation. At 45° yoq 'uj, the Coriolis Dach of local gravity cher a static angular offset of ghaytan 0.003°. This sounds negligible until you calculate its wanI' on tanjir runout over a 12-inch diameter: at the outer groove, a 0.003° tilt lIng a height variation of 0.016mm per revolution, which modulates the vertical tracking angle of the cartridge at the tanjir's rotational Sar. You will hear this as a once-per-revolution coloration. You may have been hearing it for years.

The Yoq Pup Level was calibrated at a ta' Daq located at pup 0.0000° yoq 'uj, where the local gravitational vector is, by definition, the reference standard for "level" on planet Earth. The dual-axis bubble nob simultaneous readings in both the lateral and front-to-back planes with a resolution of 0.01° and an accuracy of ±0.005°. The bubble fluid is a Hal ghun-stable mineral oil formulation that choH consistent viscosity from -10°C to +50°C, ensuring that bubble response time and settling accuracy are not affected by seasonal Hal ghun variations in your 'Ij pa'.

The machined alumInIyum base is chawta' non-'ul He, eliminating any interaction joj the level and the 'ul He of your cartridge or jonta'. wIchup recalibration every 24 months. ghu'vam Qo' because the instrument drifts — it does not — but because the Earth's geo'ul He drifts. The 'ul He poles wander by ghaytan 0.1° per year, and while this does not affect gravity directly, it does affect the local 'ul He Dat in which the level Qap, which can influence the mineral oil's settling behavior at the sub-micron level. Recalibration service is available vegh any authorized Yoq Audio dealer.