Amptweaker's TightDrivel Jr pedal shares most of the tone-tweaking features available on their guitar counterparts, but with the popular Dry Low knob found on other Amptweaker Bass pedals 'on the side'. This blend adds in clean lowend to the tone, helping to maintain the bottom without adding weird phase-shifty tones to the distorted highend. The Tight control and Fat switches were re-configured into a 3-position Fat/Normal/Tight switch to dial in the attack of the notes from thick and heavy to aggressive and chunky. An EQ switch similarly provides Plexi(Thrash on Bass TightMetal JR)/Normal/Smooth tone settings.In addition to Gain, Tone and Volume knobs, there s also a manually-adjustable Noise Gate which can be cranked to stop notes hard and fast. And the great thing about a built-in noise gate is that it goes away when you turn the pedal off.....so your clean tone is unaffected! The Tight switch and Tone control were tweaked on these bass versions to operate at lower frequencies, making them perfect for bass OR lower tuned guitars such as 7 or 8-strings.