The onboard speaker makes it entirely portable and standalone as well as assisting with the feedback aspects. The unit has a blue glowing lamp, is tunable, has 1/4" output and runs on a 9v battery.
The strings can be easily replaced if needed. This was meant to be played with an ebow and is a suggested addition. The feedback harmonizer is an instrument to be mastered.
Samples Below were recorded on a minidisk recorder and into a direct mp3 recorder...Unfortunately they are not of the highest quality, a bit quiet and a little disappointing. But for the time being it's what's available. They were meant to cover a range of what is possible with this piece but there is much missing.
enjoy
feedback harmonizer 1
feedback harmonizer 2
feedback harmonizer 3
feedback harmonizer 4