Reverse side of the front panel
Hooking up and running the Musketeer III requires that you have the right peripheral PC power supply connector. Analog audio signals are captured externally to the sound card, and fed to the front panel via a cable. Once there, the vacuum tube provides "harmonic treatment" of the audio signal. A second cable connected to the line out feeds the sound signal over to a slot adapter, where speakers or headphones are connected. It's too bad that the Musketeer III can only process two channels, meaning sound cards for 5.1 or 7.1 cannot be utilized to their fullest.
Power and audio connections
Connection cable of the Musketeer III