Analogue Productions set out to produce the ultimate test record. We’ve consulted many experts in the field, including mastering engineers, audio experts, turntable experts and audiophile listeners, to create a test record that's never been made before. When Barry Wolifson from Sterling Sound in New York City called us with the same idea we had been thinking about – that being to create the ultimate test record – he and our audio expert Clark Williams began to brainstorm and research ideas until they were both completely satisfied with what should go on the record. Most of the test records in the past have been made to test a variety of equipment. This test record excludes silly cannon shots, typewriters, voices on one channel and other useless fluff. This one specifically addresses your turntable and cartridge. It’s designed to provide the basic test signals necessary to calibrate a turntable or cutting lathe as simply as possible. Most of the signals have specific implications, but it is certainly possible to use them in any number of novel ways. This record was mastered and cut on a Neumann VMS 80 lathe at Sterling Sound and pressed at Record Technology, Inc. on high-quality, 180-gram virgin vinyl.