Pro AudioSpectrum 16
From the box, dated 1992:
"The Pro AudioSpectrum 16 Mac is the state-of-the-art in audio enhancement for your Apple Macintosh computer. Available in LC and NuBus configurations, this audio adapter delivers 16-bit stereo digital audio recording and playback to 44.1 KHz, built-in MIDI in and out ports, and a 4-channel software controllable input mixer. These features coupled with it's CD quality sound - and bundled software makes the Pro AudioSpectrum 16 the most comprehensive, state-of-the-art sound solution available today. Hear your Mac like never before!"
Signal Quality (1V RMS Reference)
[*]Sample Rate (16bit PCM)
- 2-44.1 KHz Programmable Frequency (step size < 1 KHz)
[*]Dynamic Range and Signal to Noise
- Synthesized Mixed Audio: -75 dB
- Sampled Audio (PCM): -85dB
- 20Hz-20KHz (3/-3dB)
- 4Hz-20KHz Programmable
[*]Volume Control (Programmable in steps with adjustment of left and right channels)
- Master Volume: 0 to 80dB (2dB/step)
- Mixer: +3 to 12dB
- 4-input stereo audio mixing with independent left/right channel control
- 4-line-level inputs
- Microphone input
- Dual RCA line-level outputs
- Mini stereo headphone output
- MIDI (1 input, 1 output)
- Standard joystick, 15-pin
- Master Volume: 0 to 62 dB (1dB/step)
- Input Mixer +1 to 60 dB (2dB/step)
The 15 pin port at the top is for connection of a PC joystick. The PAS16 drivers allowed the joystick to emulate the mouse.
There are three connectors arranged triangularly. The black one at the top is for headphones. The other two are stereo out. To the right of these is MIDI in and MIDI out. Below these are two row of four connectors. These are four channels of stereo in. In the bottom right is the microphone in.
The PAS16 shipped with the expensive SoundEdit Pro software and Trax, MIDI software.
Oddly, the PAS 16 also included a set of inexpensive headphones.