The Different Sounds You Can Create With A Step Filter Guitar Effect – FuelRocks
Audio EQ: What Is A Low-Pass Filter & How Do LPFs Work? – My New Microphone
Multi Active Band-Pass Filter Equalizer (Guitar Pedal) | diyAudio
I've wanted a passive octave bandpass filter like the Brüel & Kjær 1613 for a while, but found it difficult to source - so I designed and built my own in 10hp! :
Is there a "high pass filter" and or "low pass filter" pedal (not reqular EQ)? | The Gear Page
Low + High Pass Filter | Broughton Audio
RC Low Pass Filter Box (Adjustable) - Ec-Projects - YouTube
Genzler re/Q Dual Function EQ Pedal | Bass Buddha
Guitar Pedal X - GPX Blog - Preferred Filter Pedal Selection - at the key practical enclosure sizes
EH Micro Q Tron Envelope Filte – Motor City Guitar
Vintage 1970's Original Mutron Inc. Mu-Tron III Envelope band pass Filter Pedal | eBay
Pigtronix Introduces the Resotron Analog Filter Pedal – No Treble
Bruel and Kjaer Model 1613 Bandpass Filters | Reverb UK
bandpass filter in a stompbox - freestompboxes.org
Audio Filter Types (Explained Simply)
EVIL FILTER - Death By Audio
An Introduction to Envelope Filters | Hochstrasser Electronics
Vintage 1970's Original Mutron Inc. Mu-Tron III Envelope band pass Filter Pedal | eBay
Pribor Pedals Envelope Filter F-7 Polivoks Low Pass Band Pass LP BP guitar bass pedal cv controlled | Reverb
Guitar Pedals: Gyrator Filter Calculator
