Those who follow the submit your Blog already know that I have a Master System II installed on a CRT TV. It is used mainly for games that use the Pistola Light Phaser, which do not work on LED TVs, as I usually play the other games using a Sega Genesis, at Mega Everdrive (or a Master Everdrive with adapter PowerBase Mini FM) and the Framemeister.
As the sound of the Master System II, He has only one RCA audio output. To install it on stereo TVs you can use only one input and select mono sound through the menus, What I do not like too much because I just forgot to get back to stereo after you play. Another alternative is to use a Y-cable or adapter.
Eu He had already bought a few of these Y adapters on DX for some time. I ended up breaking one in a time when dumped and supported unduly chaveador, but the others are ok. But one day I was walking through the Mall and found a more robust solution: the Y-Cable 2 RCA Jack RCA plug X 20 cm.
Check out the photos Y-Cable 2 RCA Jack RCA plug X 20 cm and my installation with him: