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Pedalboard Order & Signal Chain Guide
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About this reference
From the music-learning collection, adapted for Philojain Music Muse. Referenced sources remain credited in the article.
Drive before or after modulation? Where does the gate sit? The forge arranges your actual pedals into the chain that serves the tone you described.
What is the classic pedal order?
Tuner, dynamics, drive, modulation, delay, reverb — and every rule bends once you know why it exists.
Where does a noise gate belong?
Key it from the guitar, cut after the drive section — the guide shows both routings.
Four-cable method worth it?
If your amp’s preamp is the voice, yes; the forge explains when it is not.
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One concierge, many modes
Learn it, apply it, go further — this page, your way.
Learn it (4)
Apply it (4)
Go further (4)
Routing, in detail
Routing (14)
Buffer
A low output impedance of a few hundred ohms pushes the downstream RC corner far above the audible range. It does not add treble; it moves the filter out of the way.
the guitar sounding the same through fifty feet of cable as through five
Bridging ratio
A passive pickup's output impedance is roughly 5–20 kΩ and rises with frequency; a guitar amp's input is about 1 MΩ. That deliberate ten-to-one-plus ratio exists solely to avoid loading the instrument — which is why a mixer line input at 10–50 kΩ is, per Sound On Sound, “way too low to allow a guitar's pickups to work properly.”
a guitar plugged into the wrong input sounding thin, dull and lifeless before anything else happens
True bypass
The pedal is switched entirely out of circuit — but its jack capacitance stays and nothing terminates the cable. DC offset above 5 mV across the switched node causes an audible pop; by 20 mV it is intolerable.
no colouration when off, no trails, and a click on every stomp unless the pull-downs are right
Effects loop
Placed after the preamp distortion, so delay and reverb act on a distorted signal rather than being distorted themselves.
repeats that stay clear behind a saturated tone instead of turning to porridge
Four cable method (4CM)
Drives in front of the preamp, time effects in the amp's loop, using the unit's own internal split. Four cable runs, and it demands good buffering.
one amp doing what three normally would, with every effect in its correct position
True stereo vs ping-pong
True stereo runs independent, decorrelated processing per side; ping-pong bounces one signal between two outputs. Both get marketed as stereo.
genuine width in one case, and a novelty bouncing between speakers in the other
What is actually stereo
Modulation and time-based effects genuinely produce different left and right signals. Distortion, compression and most gain stages are inherently mono processes even inside a box labelled stereo.
width that only ever comes from the modulation and the ambience, never from the drive
Mono-summing cancellation
Modulation deliberately produces out-of-phase content between channels. Summed to mono the effect level drops, and in the documented worst case a stereo tremolo running 180° out of phase can completely erase itself and sound like bypass.
the effect vanishing the moment the front-of-house engineer collapses the rig to mono
Split sum
Duplicating one channel to both outputs rather than summing left plus right, which avoids the cancellation entirely for modulation, while a true sum stays fine for delay and reverb.
a stereo rig that survives mono without disappearing
Wet/dry/wet
Dry to a centre amp for punch and mono reliability, effects split to two amps panned hard.
enormous width around a solid centre, that does not depend on the audience standing in one place
Buffered loop switching
Each pedal sits in its own buffered loop and is electrically removed when off, so it never loads the chain regardless of how many are installed.
a thirty-pedal rig with the same top end as a guitar straight into the amp
Order as function (the Keen hierarchy)
R.G. Keen's Effects Order is a distortion-centric hierarchy rather than a list of boxes: amplitude effects, pre-distortion EQ, distortion, post-distortion EQ, short time-based effects, long ones, then reverb. Each rule has an electronic reason.
the difference between a chain that clarifies and one that muddies, with no change of pedals at all
Time before drive
Phasers and delays create notches in the frequency response, and distortion placed after them fills in the response notches the time delay created. Delay first also means every repeat is re-distorted and progressively muddier.
modulation that disappears into the distortion, and repeats that get dirtier rather than quieter
Profiling vs modelling
A profiler sends noise into the target amp, mics the cab and analyses the return, capturing a fingerprint of one amp at one setting through one cab and one mic. Component modelling simulates the circuit, so every control responds natively.
a profile that is uncannily right at its captured setting; a model that keeps behaving when you turn the knobs
The four cable method rig
1990s onward — One amp doing what three normally would, by splitting the unit around the amp's own preamp.
- Chain: guitar → unit input → unit send to amp input → amp send to unit loop return → unit loop send to amp return → power amp
- Mechanisms: Four cable method, Effects loop, Order as function, Buffer, Time before drive
- Gear: any multi-effects unit with a routable internal split, into any amp with a serial loop
- Appears in: pairings 16, 18
The wet/dry/wet three-amp rig
late 1980s onward — The dry centre keeps the attack and the localisation; the wet outers do nothing but ambience.
- Chain: guitar → drives and dynamics → split → centre amp dry → stereo time effects 100% wet → left and right amps
- Mechanisms: Wet/dry/wet, What is actually stereo, Mono-summing cancellation, True stereo vs ping-pong, Buffer
- Gear: three near-identical amps, a transformer-isolated splitter, stereo rack or pedal time effects
- Appears in: pairings 30, 31, 32, 34
- Correction: Joel Korte's own wet/dry rig used deliberately mismatched amps — a high-headroom solid-state amp plus “a gnarly-little-homemade tube amp.” Two identical amps versus two different ones is a creative choice with no technical consensus behind it.
The silent rig
2010s onward — The amplifier still runs flat out; only the air is removed.
- Chain: guitar → pedals → amp head → reactive load box → IR loader → interface → headphones
- Mechanisms: Reactive vs resistive load, Impulse response, Attenuator limits, Preamp vs power amp distortion, Impedance mismatch
- Gear: Two Notes Torpedo, Fryette Power Station, UA and Strymon IR-capable units
- Appears in: pairings 17, 25, 33
- Correction: A purely resistive dummy load records “far too bright and buzzy” because a tube amp's frequency response depends on the load impedance curve. The load box must be reactive, and the IR is a separate job it does not do.
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