Denon DL-103 Information and reviews
ARTHUR SALVATORE provides an expanding collection of thoughts and information on the use and variations within the Denon cartridge database.
STEREOPHILE MAGAZINE has collected various reviews of the DL-103 from 2007-2017.
ANALOGUE CLASSICS comprehensive summary of DL-103 variants.
VINYLENGINE is a fantastic resource: they have an extensive library of information and manuals available for near every piece of turntable equipment ever manufactured. See link for Denon DL-103 manual in English and Japanese.
www.vinylengine.com/library/denon/dl-103.shtml
Analog Planet is an excellent source for up to the minute news and articles about everything relating to your turntable, cartridge, and LP collection. I recommend checking out Michael Fremer's Practical Guide to Turntable Set-Up