Wayne Parham Messages: 18756 Registered: January 2001
Illuminati (33rd Degree)
You can buy USB turntables, but they are terrible. No point in talking about quality issues with something like that because they are bottom-of-the-barrel devices.
If quality is desired, use a good turntable and a computer with a good sound card; Sample the signal with a high resolution, e.g. 44K/16bits or more, and save the file in a lossless data format. Do not let the signal clip when sampling.