N-Gate: Problems with the noise floor? The TubeOhm Noise Gate works with two threshold. First the gate on threshold, second the gate off threshold. This gives a better contol if the release phase has some spikes. T-Xciter: Add harmonic overtones to the sound. That gives a better speak understanding, a bette voice sound, crisp high frequencys. Two harmonic generators – deep and high frequencys. Moves the carpet from your boxes.