Every Lotus Pedal ships in a box marked "Keep it simple". But don't be fooled by the simple layouts, and pedal board friendly size. Every Lotus Pedal Designs I've played has sounded impressively good. The THD+N is no exception. Small, Green, two knobs - Crazy amounts of aggression. Sean, the man behind Lotus, call's it a Lofi Fuzz. Honestly it's hard to nail down what the Total Harmonic Distortion + Noise really is...at times it's a Synth-y and jagged distortion with rough edges you could cut yourself on. At other times it's a tight and clear Fuzz booming out warm, thick, percussive rhythms.
The THD+N posseses more mid range than your average fuzz and an almost EP3 boost like slick compression all while attempting to gnaw your leg off like a wild dog. It's a conundrum of a pedal - In order to record the THD+N I had to cut my volumes way back in an attempt to let you hear it what it could do with out clipping. Or worst getting kicked out of my house after the neighbors complain.
So to keep it simple...The THD+N is a fuzz on the edge of distortion with Synth like, ring mod characteristics that jump out from time to time (Though it's never a ring mod). The secret of this little beast is the distortion knob that adds odd to even order harmonics. This means at times in the knobs sweep it will be thinner with more ring, and at others thicker and more musical. But not necessarily in a linear sense. You will just have to listen to the pedal and find the spot you want. But don't let that scare you off, it's very easy to dial in, and it sounds great. It just has a touch of multiple personalities for such a "simple" pedal.