FC Twin - Other Compatibility Notes

Other Compatibility Notes

The FC Twin connects through an RCA connector, and can be hooked into a surround sound system. When using stereo and surround output from these systems, NES sounds and music may seem very different from their typical mono output. Using output modes that properly generate mono sound, either through a single center speaker or cloned to multiple speakers, the sound output sounds mostly identical to the original NES. The FC Twin does not produce some sounds faithfully, even with mono output; sound effects in the Super Mario Bros. series games will for example immediately seem different. Nevertheless, some later models of the console produce NES sound much more faithfully than units made closer to launch. Recent models produce sound with complete fidelity.

The FC Twin uses a card slot reader rather than a ZIF connector. The second-generation NES also used a card slot reader, and featured no 10NES lock-out chip; however, unlike the top-loading NES 2, the FC Twin is completely compatible with the Galoob Game Genie without the use of an adaptor. Both the official NES 2 and the FC Twin capitalize on the card slot reader's greater reliability; games rarely suffer from bad connections as they did with the original ZIF socket. In the FC Twin, the NES cartridge still has to be reseated occasionally. The pins can misalign and short across each other or otherwise fail to connect properly, requiring users to maneuver the game cartridge until it works.