Electro Harmonix Q-Tron Plus - ENVELOPE FILTER WITH EFFECTS LOOP

(This text is machine translated) Q-Tron Plus is based on the original Q-Tron, but with an extremely useful Effects Loop and Attack switch. The Effects Loop gives the player the ability to insert an additional effect, or chain of effects, between the preamp section and the Q-Tron Plus filter without changing the envelope effect. This is especially important with most distortion devices. The Response switch allows you to choose between a slow, smooth, vowel-like attack and the lightning-fast response of the original Q-Tron.