Upgrade your Line 6 Spider 5 Mk1 amp to the latest Mk2 model with a simple, downloadable software patch. This update will make it possible to switch between FRFR mode - which is great for acoustic guitars or audio device playback (e.g playing songs from your mobile phone) - and the classic amp speaker setting, providing the gritty 'in-the-room' air push of a standard guitar cab. All new Line 6 technology at an unbeatable price!