 Each "Pro AudioSpectrum" sound card included a MPU401-compatible MIDI and Gameport interface similar to those on Sound Blaster cards.Other outstanding features of the PAS cards were the Win 3.x software (audio recorder, CD player and mixer) that fit on a 640x480 screen and worked well together, the quality of the user manual (even in the translated versions), jumperless configuration via software, the use of a 4 layer printed circuit board, and the PC speaker support that was done by listening on the ISA bus rather than using an external cable like the Sound Blaster cards.With the PAS cards, Media Vision also began to include a popular player for Amiga sound module (.MOD) files.