KNIGHT SCHOOL FILTER - DIY KIT If you've ever heard a synthesizer in action, you've probably heard of the low-pass filter, a powerful tool for sculpting sounds, whose complexity increases exponentially as its usefulness increases linearly. Present in the earliest examples of analog synthesis, the low-pass filter establishes a cutoff frequency and then rejects all frequencies above it with an intensity determined by the filter's construction. We have eliminated any approximation by allowing you to define your own cutoff frequency thanks to an aggressive filter design. A resonance control allows you to adjust the level of “synthesis” by feeding the output signal back to the input. A gain control adds a little grain to the input to push the filter harder. This filter design excels especially when placed behind your favorite distortion or modulation pedal: a warmer signal is completely absorbed by the filter for even more synthetic textures. Try a fuzz pedal upstream for Zappa-worthy sounds! Our filter kit puts this synth-like control at your feet, giving you resonance control (also known as “feedback”) for a more intense filtering experience, as well as built-in gain control to add a little grit to the signal. feedback") for a more intense filtering experience, as well as a built-in gain control to add a little grit to the signal. This kit is absolutely awesome when paired with your favorite distortion pedal. You're going to love it. DETAILED OVERVIEW There is no aspect of audio electronics more underrated than the humble filter. Whether you know it or not, filters are one of the fundamental elements of guitar effects. From the simple low-pass filter included in every Rat circuit to Moog's ladder filter circuit that once defined electronic music, filters are everywhere. One of the most interesting aspects of the humble filter is that many examples are not so humble. In terms of components, the aforementioned circuits have three and about 50 parts, respectively, and the Moog circuit isn't even the most complicated of the bunch. There are far more types of filters than one might think, with varying degrees of intensity. Audio filters first appeared on the pedalboards of professional guitarists in the 1970s, when Seamoon launched its Funk Machine, an envelope-controlled effect. Mike Beigel's Mu-Tron III followed shortly thereafter, using a bipolar variable state filter straight out of an engineering textbook, but with the added feature of also being envelope-controllable. It turns out that variable state filters are an excellent starting point for building your own audio filter. That's why we're offering you a simplified variable state low-pass filter today. Of the three main types of “pass” filters, the low-pass filter is perhaps the most recognizable. The filter rejects frequencies above the cutoff point. pass“ filters, the low-pass filter is perhaps the most recognizable. The filter rejects frequencies above the adjustable cutoff point, resulting in a smooth, studio-quality effect. Of course, the Rat's ” Filter" control on the Rat is also a low-pass filter, but it is an extremely simple passive device. The attenuation is therefore not as strong and, as a result, the sound is not as dramatic as that of the variable-state model. Our Filter kit puts this synthesizer-style control at your feet, giving you resonance control (also called “feedback”) for a more intense filtering experience, as well as a built-in gain control to add a little grit to the signal. feedback") for a more intense filtering experience, as well as a built-in gain control to add a little grit to the signal. This kit is absolutely awesome when paired with your favorite distortion pedal. You're going to love it.
Features:
Filter: Selects the cutoff frequency of the low-pass filter. At one end, the cutoff frequency is around 9 kHz, and at the other end, it goes down to 280 Hz.
Gain: This is actually a potentiometer in series with the input, which works in the same way as your guitar's volume control. If you plan to use the filter first in your chain, you can leave this knob at full and use your guitar's volume instead. Integrating this pedal into a pedalboard will require a little more fine-tuning. Resonance: This introduces feedback into the circuit to make it more “synthetic,” to put it simply. When turned all the way down, you get moderate but still noticeable filtering. As you turn the knob up, the filtering becomes more and more intense, with a very “rich” sound at its maximum. If you've already dealt with more complex synthesizer filters, you may be wondering if turning this knob all the way up will cause the filter to oscillate. This will not be the case. Power Supply The Knight School Filter only accepts a center-negative DC power supply capable of providing 9 volts. DIY Kit Information The printed circuit board has labels indicating the location of each component. The image below will help you identify the different components. You will also find a video below that shows you how to proceed.
en 
