The Unitra Laboratory Edition test record has been designed to verify hi-fi audio equipment under typical home listening conditions. The set includes two black vinyl discs with advanced test signals developed by Unitra for accurate measurement of performance indicators used to calibrate phono cartridges. The calibration records are compatible with Unitra GSH-630 Fryderyk and GSH-801 Edmund turntables, as well as other turntables on the market. They provide a precise tool for checking and adjusting various aspects of turntable performance.

Unitra WT-2:
Type: Classic Black Vinyl Record
Format: 12" Vinyl

Playback:
Playback Speed: 33 1⁄3 RPM

General:
Size: 12"
Weight: 140 grams