A very great sounding, low noise, versatile preamp. Very easy to dial in, found my preferred sound fast. Ran it straight into my Orange AD30 set clean, had to back off the treble a lil bit…but not at all harsh, just a great saturation! Have not had a chance to run into an FX return, but with those results straight in I’m pretty sure it will rock🤘🏼Excellent all the way around!!