Editing Effects unit (section)

=== Stompboxes ===
[[File:Ts9-stompbox-2-2.jpg|thumb|left|upright=0.50|[[Ibanez Tube Screamer]] TS9 overdrive pedal]]

Stompboxes are small plastic or metal chassis that usually lie on the floor or in a pedalboard to be operated by the user's feet.  Pedals are often rectangle-shaped, but there are a range of other shapes (e.g., the circular [[Fuzz Face]]). Typical simple stompboxes have a single footswitch, one to three [[potentiometers]] for controlling the effect, and a single [[LED]] that indicates if the effect is on. A typical distortion or overdrive pedal's three potentiometers, for example, control the level or intensity of the distortion effect, the tone of the effected signal and the output level of the effected signal. Depending on the type of pedal, the potentiometers may control different parameters of the effect. For a [[chorus effect]], for example, the knobs may control the depth and speed of the effect. Complex stompboxes may have multiple footswitches, many knobs, additional switches or buttons that are operated with the fingers, and an alphanumeric [[LED]] display that indicates the status of the effect with short acronyms (e.g., DIST for "distortion").<ref name="books.google.com"/><ref>Mangum, Eric; Stubbs, Dean (2000). [https://books.google.com/books?id=pp6xpWAgjFcC ''Dod Presents 100 Superstar Guitar Sounds on a Stompbox Budget'']. Hal Leonard. p. 8.</ref>

[[File:Anders pearson's pedalboard (2010-03-20 11.07.50).jpg|thumb|300px|An example of an ''effects chain''. <div style="line-height:110%;">{{smaller|From the input [''right''] to the output [''left'']: }}{{unordered list|''Tuner'' {{smaller|[''upper right''] (tc electronic Polytune)}} ⇒ |''Wah pedal'' {{smaller|[''lower right''] (Morley Bad Horsie Wah)}} ⇒ |''Overdrives/distortion'' {{smaller|[''lower row''] (Rocktron Short Timer Delay → Danelectro CTO-1 Transparent Overdrive → Boss HM-2 → Boss MT-2)}} ⇒ |''Modulations/delay'' {{smaller|[''upper row''] (Digitech Hyper Phase → Danelectro CV-1 Vibe → Danelectro CT Tremolo → Digitech Hyper Delay)}}}}</div>]]

An '''{{vanchor|effects chain}}''' is formed by connecting two or more stompboxes forming a [[signal chain]]. Effect chains are typically created between the guitar and the amp or between the [[preamplifier]] and the power amp. When a pedal is off or inactive, the electric [[audio signal]] coming into the pedal diverts onto a ''bypass'', an unaltered ''dry'' signal that continues on to other effects down the chain. In this way, a musician can combine effects within a chain in a variety of ways without having to reconnect boxes during a performance.<ref>
{{cite web
 | last= Egnater
 | first= Bruce
 | author-link= Bruce Egnater
 | title= Bruce Egnater on Effects Loops
 | publisher= guitarplayer.com
 | date= 16 December 2009
 | url= https://www.guitarplayer.com/miscellaneous/bruce-egnater-on-effects-loops 
 | archive-url= https://web.archive.org/web/20181130155133/https://www.guitarplayer.com/miscellaneous/bruce-egnater-on-effects-loops
 | archive-date= 30 November 2018
 }}
</ref>
A ''controller'' or ''effects management system'' lets the musician create multiple effect chains, so they can select one or several chains by tapping a single switch. The switches are usually organized in a row or a simple grid.<ref>
{{cite book
 | last= Kahn
 | first= Scott
 | title= Modern Guitar Rig: The Tone Fanatic's Guide to Integrating Amps and Effects
 | publisher= Hal Leonard Corporation
 | series= MusicPro Guides
 | year= 2011
 | location= Milwaukee
 | page= 146
 | url= https://books.google.com/books?id=hjHKTIhVWosC
 | isbn= 978-1-4234-9944-2
}}
</ref>

It is common to put [[#Dynamics|compression]], [[wah-wah (music)|wah]] and [[Distortion (music)|overdrive]] pedals at the start of the chain; modulation ([[chorus pedal|chorus]], [[flanger]], [[Phaser (effect)|phase shifter]]) in the middle; and time-based units ([[delay (audio effect)|delay]]/echo, [[Reverb effect|reverb]] at the end.<ref>{{cite web
 | last= Ross
 | first= Michael 
 | author-link= 
 | title= Pedal Order by the Numbers – Plus, the Pros on Pedal Order 
 | publisher= guitarplayer.com
 | date= 28 August 2020 |url=https://www.guitarplayer.com/gear/pedal-order-by-the-numbers-plus-the-pros-on-pedal-order}}</ref> When using many effects, unwanted noise and hum can be introduced into the sound. Some performers use a [[#Dynamics|noise gate pedal]] at the end of a chain to reduce unwanted noise and hum introduced by overdrive units or vintage gear.<ref>{{Cite book|last=Rogers|first=Jerry|title=Your Band's First Gig: Getting The Sound Right|date=25 May 2010|publisher=Jerry Rogers |isbn=9781445766249|url=https://books.google.com/books?id=tSXSg-_o_OcC|access-date=10 September 2010}}</ref>