Eventually, its popularity led to the release of commercially available models like the Type B and Type C. Now listen to our audio demo to hear the Aphex Vintage Aural Exciter in action on: Picked Bass: in MIX1 mode gradually increasing the mix control to max then bypassing to compare. Then the same process using MIX2 mode. At lower settings it can become harsh, but then too much range is always better than not enough. Expensive Exciter. Snare top mic: in MIX1 mode gradually increasing mix control to max, then bypass to compare. The original aural exciter algorithm was developed in the mid-1970s by Aphex Systems. At first, it was available to recording studios only to hire (at a cost of $30 per minute of finished recording time in 1975). The Aural Exciter part sounded much as I expected, as I've used many Aphex devices over the years, and, provided that you don't set the Hi Tune control too low, you can add a nice sense of air and detail without roughening up the mid-range. Shop for the Aphex DEMO APHEX 1403 GTR EXCITER PEDAL and receive free shipping on your order and the guaranteed lowest price.