This is one set USED Denon Model DL-103R/T comes with best match Denon DL-103R cartridge and Denon AU103 MC Step Up Transformer.  

Best match with most Vintage Cartridge, such as Denon DL-103 series, DL-301 Series, Supex, Kiseki, Dynavector, Fidelity Research and many others.  Condition: 9.5/10

AU-103 Specifications:

Adaptable impedance of the cartridge : 3-40 ohms 

Step-up ration : 1:10 

Frequency Response : 20 - 50,000Hz 

Dimemsion : W135 X D102 X H52 MM Weight : 1.3kg

Dl-103R Specification

Principle: Moving coil type

Output: 0.27mV (1kHz, 50 mm/s horizontal direction)

Channel Balance: 1 dB min. ( 1 kHz)

Electrical Impedance: 14 ohms ±20%

Stylus: 0.2 mm square solid diamond

Tracking Force: 25 mN ±3 mN (2.5g  0.3 g)

Frequency Response: 20Hz to 45 kHz

Mass: 8.5 g

Load Impedance: 100 ohms min. (40 ohms when using a transformer)